HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from O'Hare Intl (ORD) to Porto (OPO) from $378

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ORD — OPO
Jun 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Chicago O'Hare Intl to Porto are usually found in January or February, booked 57 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap flight deals from O'Hare Intl to Porto

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 2, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$523

One-way from

$516
High demand for flights, 28% potential price rise
Search Deals
Best time to find cheap flights, 26% potential price drop
Search Deals
From Chicago O'Hare Intl to Porto
Search Deals
One-way flight from Chicago O'Hare Intl to Porto
Search Deals

What is the cheapest day to fly round-trip from Chicago O'Hare Intl Airport to Porto?

Sunday flights are generally found to be more expensive for flights from Chicago O'Hare Intl Airport to Porto. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Porto.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Porto?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, November can be a great choice for travel to Porto. Flights to Porto from Chicago O'Hare Intl Airport in November are about $660 on average during November, but can be found for as low as $478.

What is the cheapest time of day to fly from ORD to OPO?

It’s typically best to fly out from Chicago O'Hare Intl Airport to Porto in the afternoon. Doing so could potentially save you 28% on the flight price compared to flying at noon, which is usually more expensive.

Cheap TAP AIR PORTUGAL flights from O'Hare Intl to Porto

Explore cheap flight options specifically provided by TAP AIR PORTUGAL for the route between O'Hare Intl and Porto. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Peruse some of the lowest-priced TAP AIR PORTUGAL flights we've found from Chicago to Porto. Make sure to check back often as deals are often changing.
Sun 11/108:25 pmORD - OPO
1 stop16h 35mTAP AIR PORTUGAL
Tue 11/198:00 pmOPO - ORD
1 stop25h 30mTAP AIR PORTUGAL
Deal found 6/1$482
Wed 11/67:15 pmORD - OPO
1 stop11h 50mTAP AIR PORTUGAL
Thu 11/148:00 pmOPO - ORD
1 stop25h 30mTAP AIR PORTUGAL
Deal found 6/1$499
Wed 10/96:00 pmORD - OPO
1 stop22h 30mTAP AIR PORTUGAL
Wed 10/167:00 amOPO - ORD
1 stop15h 10mTAP AIR PORTUGAL
Deal found 6/1$522
Sun 9/226:00 pmORD - OPO
1 stop14h 10mTAP AIR PORTUGAL
Fri 9/2710:00 amOPO - ORD
1 stop12h 00mTAP AIR PORTUGAL
Deal found 6/1$604
Mon 9/166:00 pmORD - OPO
1 stop17h 05mTAP AIR PORTUGAL
Fri 9/2710:00 amOPO - ORD
1 stop12h 00mTAP AIR PORTUGAL
Deal found 6/1$622
Fri 8/96:00 pmORD - OPO
1 stop15h 20mTAP AIR PORTUGAL
Sun 8/189:20 pmOPO - ORD
1 stop24h 55mTAP AIR PORTUGAL
Deal found 6/1$807
Sun 7/76:00 pmORD - OPO
1 stop14h 10mTAP AIR PORTUGAL
Sat 7/1310:00 amOPO - ORD
1 stop12h 10mTAP AIR PORTUGAL
Deal found 6/1$872
Sat 6/154:35 pmORD - OPO
2 stops21h 55mTAP AIR PORTUGAL
Fri 6/215:55 pmOPO - ORD
1 stop26h 15mTAP AIR PORTUGAL
Deal found 6/1$1,074
Wed 6/56:00 pmORD - OPO
1 stop22h 30mTAP AIR PORTUGAL
Tue 6/1110:55 pmOPO - ORD
1 stop23h 15mTAP AIR PORTUGAL
Deal found 6/1$5,406

Cheap United Airlines flights from O'Hare Intl to Porto

Explore cheap flight options specifically provided by United Airlines for the route between O'Hare Intl and Porto. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Take a gander at the lowest prices we've found on United Airlines flights from Chicago to Porto. Make sure to examine the flight information before completing your reservation.
Wed 11/62:30 pmORD - OPO
1 stop18h 55mUnited Airlines
Thu 11/146:00 amOPO - ORD
2 stops36h 00mUnited Airlines
Deal found 6/1$505
Wed 11/68:55 amORD - OPO
2 stops24h 30mUnited Airlines
Thu 11/146:00 amOPO - ORD
2 stops36h 00mUnited Airlines
Deal found 6/1$509
Wed 11/66:04 pmORD - OPO
2 stops15h 21mUnited Airlines
Wed 12/116:00 amOPO - ORD
1 stop20h 05mUnited Airlines
Deal found 6/1$514
Fri 11/18:35 pmORD - OPO
2 stops37h 50mUnited Airlines
Sun 11/106:00 amOPO - ORD
1 stop20h 05mUnited Airlines
Deal found 6/1$697
Tue 6/411:45 amORD - OPO
1 stop13h 10mUnited Airlines
Tue 6/1112:35 pmOPO - ORD
1 stop12h 05mUnited Airlines
Deal found 6/1$709
Tue 6/411:10 amORD - OPO
2 stops13h 45mUnited Airlines
Tue 6/119:00 amOPO - ORD
2 stops17h 17mUnited Airlines
Deal found 6/1$714
Fri 8/162:22 pmORD - OPO
1 stop10h 33mUnited Airlines
Fri 8/236:00 amOPO - ORD
1 stop12h 55mUnited Airlines
Deal found 6/1$719
Thu 6/61:12 pmORD - OPO
1 stop11h 43mUnited Airlines
Thu 6/1312:35 pmOPO - ORD
1 stop12h 05mUnited Airlines
Deal found 6/1$759
Thu 6/611:45 amORD - OPO
1 stop13h 10mUnited Airlines
Tue 6/1112:35 pmOPO - ORD
2 stops14h 43mUnited Airlines
Deal found 6/1$764

Cheap O'Hare Intl to Porto flights in June & July 2024

Find cheap flight options from O'Hare Intl to Porto specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Prices were last updated on June 2, 2024.
Listed are some of the best fares we've found on flights departing from Chicago to Porto in 2024. Check back regularly for other flight deals.
Wed 6/56:00 amORD - OPO
1 stop18h 55mMultiple Airlines
Tue 6/118:40 amOPO - ORD
1 stop13h 15mMultiple Airlines
Deal found 6/1$702
Tue 6/411:45 amORD - OPO
1 stop13h 10mUnited Airlines
Tue 6/1112:35 pmOPO - ORD
1 stop12h 05mUnited Airlines
Deal found 6/1$709
Tue 6/411:10 amORD - OPO
2 stops13h 45mUnited Airlines
Tue 6/119:00 amOPO - ORD
2 stops17h 17mUnited Airlines
Deal found 6/1$714
Sun 6/27:15 pmORD - OPO
1 stop30h 40mSWISS
Mon 6/177:15 pmOPO - ORD
1 stop22h 55mSWISS
Deal found 6/1$716
Thu 6/67:10 amORD - OPO
1 stop20h 35mMultiple Airlines
Wed 6/1212:25 pmOPO - ORD
1 stop29h 45mMultiple Airlines
Deal found 6/1$752
Sun 6/22:25 pmORD - OPO
1 stop13h 20mUnited Airlines
Mon 6/179:00 amOPO - ORD
2 stops17h 17mUnited Airlines
Deal found 6/1$753
Thu 6/61:12 pmORD - OPO
1 stop11h 43mUnited Airlines
Thu 6/1312:35 pmOPO - ORD
1 stop12h 05mUnited Airlines
Deal found 6/1$759
Fri 6/74:35 pmORD - OPO
1 stop17h 20mAmerican Airlines
Thu 7/118:15 amOPO - ORD
1 stop12h 05mAmerican Airlines
Deal found 6/1$760
Thu 6/611:45 amORD - OPO
1 stop13h 10mUnited Airlines
Tue 6/1112:35 pmOPO - ORD
2 stops14h 43mUnited Airlines
Deal found 6/1$764

O'Hare Intl to Porto 2024 flight deals

Discover exclusive flight deals for travel between O'Hare Intl and Porto in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Listed are some of the best fares we've found on flights departing from Chicago to Porto in 2024. Check back regularly for other flight deals.
Sun 11/108:25 pmORD - OPO
1 stop16h 35mTAP AIR PORTUGAL
Tue 11/198:00 pmOPO - ORD
1 stop25h 30mTAP AIR PORTUGAL
Deal found 6/1$482
Wed 11/67:15 pmORD - OPO
1 stop11h 50mTAP AIR PORTUGAL
Thu 11/148:00 pmOPO - ORD
1 stop25h 30mTAP AIR PORTUGAL
Deal found 6/1$499
Wed 11/62:30 pmORD - OPO
1 stop18h 55mUnited Airlines
Thu 11/146:00 amOPO - ORD
2 stops36h 00mUnited Airlines
Deal found 6/1$505
Wed 11/69:25 pmORD - OPO
1 stop20h 10mLufthansa
Thu 11/146:00 amOPO - ORD
1 stop20h 05mLufthansa
Deal found 6/1$508
Wed 11/68:55 amORD - OPO
2 stops24h 30mUnited Airlines
Thu 11/146:00 amOPO - ORD
2 stops36h 00mUnited Airlines
Deal found 6/1$509
Wed 11/64:40 pmORD - OPO
1 stop17h 20mAmerican Airlines
Thu 11/148:20 amOPO - ORD
2 stops17h 20mAmerican Airlines
Deal found 6/1$510
Wed 11/61:12 pmORD - OPO
2 stops20h 13mUnited Airlines
Wed 12/116:00 amOPO - ORD
1 stop20h 05mUnited Airlines
Deal found 6/2$514
Wed 10/96:00 pmORD - OPO
1 stop22h 30mTAP AIR PORTUGAL
Wed 10/167:00 amOPO - ORD
1 stop15h 10mTAP AIR PORTUGAL
Deal found 6/1$522
Wed 11/61:12 pmORD - OPO
2 stops20h 13mUnited Airlines
Wed 12/116:00 amOPO - ORD
2 stops33h 39mUnited Airlines
Deal found 6/2$529

O'Hare Intl to Porto flights leaving soon

Find last-minute flight options from O'Hare Intl to Porto for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Users seeking a last-minute flight from Chicago to Porto should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Wed 6/56:00 amORD - OPO
1 stop18h 55mMultiple Airlines
Tue 6/118:40 amOPO - ORD
1 stop13h 15mMultiple Airlines
Deal found 6/1$702
Tue 6/411:45 amORD - OPO
1 stop13h 10mUnited Airlines
Tue 6/1112:35 pmOPO - ORD
1 stop12h 05mUnited Airlines
Deal found 6/1$709
Tue 6/411:10 amORD - OPO
2 stops13h 45mUnited Airlines
Tue 6/119:00 amOPO - ORD
2 stops17h 17mUnited Airlines
Deal found 6/1$714
Thu 6/67:10 amORD - OPO
1 stop20h 35mMultiple Airlines
Wed 6/1212:25 pmOPO - ORD
1 stop29h 45mMultiple Airlines
Deal found 6/1$752
Thu 6/61:12 pmORD - OPO
1 stop11h 43mUnited Airlines
Thu 6/1312:35 pmOPO - ORD
1 stop12h 05mUnited Airlines
Deal found 6/1$759
Fri 6/74:35 pmORD - OPO
1 stop17h 20mAmerican Airlines
Thu 7/118:15 amOPO - ORD
1 stop12h 05mAmerican Airlines
Deal found 6/1$760
Thu 6/611:45 amORD - OPO
1 stop13h 10mUnited Airlines
Tue 6/1112:35 pmOPO - ORD
2 stops14h 43mUnited Airlines
Deal found 6/1$764
Thu 6/611:25 amORD - OPO
2 stops18h 20mAmerican Airlines
Tue 6/1112:25 pmOPO - ORD
2 stops27h 30mAmerican Airlines
Deal found 6/1$777
Tue 6/111:45 pmORD - OPO
2 stops19h 45mDelta
Fri 6/145:00 amOPO - ORD
1 stop15h 20mDelta
Deal found 6/1$830

One-way flights to Porto from O'Hare Intl

Search for one-way flight options from O'Hare Intl to Porto. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Users traveling one-way from Chicago to Porto can select one of these great deals. Those seeking round-trip flights from Chicago to Porto should utilize the search form at the the top of the page.
Tue 10/17:25 pmORD - OPO
2 stops17h 25mMultiple Airlines
Deal found 6/1$378
Wed 10/26:00 pmORD - OPO
1 stop24h 30mTAP AIR PORTUGAL
Deal found 6/1$418
Mon 7/86:00 pmORD - OPO
1 stop17h 05mTAP AIR PORTUGAL
Deal found 6/1$472
Wed 10/210:57 pmORD - OPO
2 stops40h 18mMultiple Airlines
Deal found 6/1$497
Tue 10/17:15 pmORD - OPO
1 stop30h 30mSWISS
Deal found 6/1$516
Thu 6/136:30 pmORD - OPO
2 stops22h 40mMultiple Airlines
Deal found 6/1$549
Tue 7/99:30 amORD - OPO
2 stops15h 25mUnited Airlines
Deal found 6/1$573
Thu 6/137:13 pmORD - OPO
3 stops46h 27mMultiple Airlines
Deal found 6/1$574
Wed 10/210:57 pmORD - OPO
3 stops30h 43mMultiple Airlines
Deal found 6/1$596

Find flights from O'Hare Intl to Porto within your budget

Customize your flight search to find flights from O'Hare Intl to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$482 - $586

Route

Depart

Return

Price

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 11/10

1 stop16h 35m

Porto

Tue 11/19

1 stop25h 30m

$482

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 11/6

1 stop18h 55m

Porto

Thu 11/14

2 stops36h 00m

$505

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 11/6

1 stop20h 10m

Porto

Thu 11/14

1 stop20h 05m

$508

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 11/6

1 stop17h 20m

Porto

Thu 11/14

2 stops17h 20m

$510

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Fri 11/1

1 stop20h 50m

Porto

Sun 11/10

1 stop15h 30m

$529

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Thu 11/14

1 stop17h 35m

Porto

Mon 11/18

1 stop34h 10m

$530

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 8/18

1 stop20h 35m

Porto

Wed 8/28

1 stop33h 30m

$560

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 10/9

2 stops13h 45m

Porto

Wed 10/16

1 stop23h 45m

$584

Chicago O'Hare IntlPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 8/21

1 stop16h 15m

Porto

Mon 8/26

1 stop32h 55m

$586

Flights are sorted by cheapest first

Deals found on 6/1

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Porto?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Porto. Price data was last updated on May 31, 2024.
The best time to book flights from Chicago O'Hare Intl Airport to Porto is 57 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Porto?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Porto. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Porto flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from O'Hare Intl to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Porto by month

Plan your trip to Porto by taking into account the average temperature and rainfall totals by month.

OPO

Temperature

48.2 - 68 °F

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated June 2, 2024.
To help decide which airline to fly from Chicago to Porto, see what other customers have to say about TAP AIR PORTUGAL, United Airlines and Lufthansa. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,410 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,507 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
1,940 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.5
Good
1,728 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
10,755 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Chicago O'Hare Intl?

    Porto (OPO), located 6.8 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Porto. 9 airlines have flights to Porto from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Porto should not be difficult; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day.

  • Can I find flights from Chicago O'Hare Intl Airport to Porto for under $500 on Cheapflights?

    Yes, there are multiple flights from Chicago O'Hare Intl Airport to Porto for under $500. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $482, but on average you can expect to pay $536.

  • Are there last-minute flights available from Chicago O'Hare Intl Airport to Porto for under $800?

    There are currently 20+ open flights from Chicago O'Hare Intl Airport to Porto within the next 7 days for less than $800.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Porto round-trip?

    Currently priced at $482, TAP AIR PORTUGAL will fly you from Chicago O'Hare Intl Airport to Porto and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Lufthansa - these airlines can fly you to your destination from $505 and $508, respectively. Users have found that TAP AIR PORTUGAL is 28% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Porto one-way?

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $418. SWISS flights start at $516 while deals on United Airlines start at $573 one-way.

  • What does ORD to OPO mean?

    ORD stands for Chicago O'Hare Intl Airport, while OPO stands for Porto Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from O'Hare Intl to Porto that include extra baggage allowance?

    The amount of baggage you can bring on your O'Hare Intl to Porto flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from O'Hare Intl to Porto with specific airlines?

    Yes, Cheapflights allows you to browse and filter O'Hare Intl to Porto flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from O'Hare Intl to Porto that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Porto.

  • Can I find deals for business class flights from O'Hare Intl to Porto?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from O'Hare Intl to Porto that allow pets onboard?

    Many airlines flying from O'Hare Intl to Porto offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from O'Hare Intl to Porto?

    Yes, you can often find last-minute deals on O'Hare Intl to Porto flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Chicago O'Hare Intl Airport to Porto flight deals updated?

    The Chicago O'Hare Intl Airport to Porto flight deals you see on this page were last updated on 6/2.

  • What are the most popular airlines that fly from Chicago O'Hare Intl Airport to Porto?

    Consider American Airlines, British Airways or Delta when booking your flight. These represent the most popular airlines when flying from Chicago O'Hare Intl Airport to Porto.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Porto?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Porto (average of $523). Flying from Chicago O'Hare Intl Airport to Porto in June is currently the most expensive (average of $994). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for O'Hare Intl to Porto
See prices for flight routes from nearby airports that may be better suited for you.

O'Hare Intl to Lisbon flights
Midway to Lisbon flights
Midway to Porto flights
O'Hare Intl to Ponta Delgada flights
O'Hare Intl to Funchal flights
O'Hare Intl to Faro flights
O'Hare Intl to Lajes flights
Midway to Faro flights
Midway to Ponta Delgada flights

Top 9 airlines flying from O'Hare Intl to Porto

Discover the top 9 airlines that operate flights from O'Hare Intl to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$474Average$852FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IberiaCheapest$484Average$598FlexibilityNo cancel feeOn-time77%
Search Iberia flights
KLMCheapest$520Average$813FlexibilityNo cancel feeOn-time75%
Search KLM flights
DeltaCheapest$520Average$810FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
British AirwaysCheapest$523Average$717FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest$532Average$798FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
SWISSCheapest$589Average$1,093FlexibilityNo cancel feeOn-time79%
Search SWISS flights
United AirlinesCheapest$619Average$1,047FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest$634Average$1,234FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Newark Airport to Nashville flights
El Paso to Las Vegas flights
San Francisco to Vancouver flights
Los Angeles to Las Vegas flights
Jamaica to The Bahamas flights
Denver to Kansas City flights
Tampa to Orlando flights
New York to New Orleans flights
Portland to Los Angeles flights
Philadelphia to Las Vegas flights
Washington, D.C. to Orlando flights
Chicago O'Hare Intl Airport to Norfolk flights

Search flights from O'Hare Intl to Porto by cabin class

Find flights from O'Hare Intl to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from O'Hare Intl to Porto?

Deals for O'Hare Intl to Porto flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Porto?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from O'Hare Intl to Porto.

Can Cheapflights find flights from O'Hare Intl to Porto with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from O'Hare Intl to Porto, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from O'Hare Intl to Porto become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines