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Cheap flights from Ontario (ONT) to Porto (OPO) from $682

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. 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.
ONT — OPO
Jun 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
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How far in advance should I book a flight from Ontario to Porto?

To save on the cost of your flight from Ontario to Porto, book at least 12 days before your planned departure. Booking around this time can save you about 40% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $698 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,279.

What is the cheapest month to fly from Ontario to Porto?

January is one of the best times of the year to fly to Porto from Ontario. Prices for January average $1,035 per person but you can even find prices for as low as $504. The most expensive prices can be found in the month of June. Opting for a January flight can save you 30% on your journey compared to booking in June

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Porto as you normally would.

Cheap United Airlines flights from Ontario to Porto

Explore cheap flight options specifically provided by United Airlines for the route between Ontario 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.
Consider these cheap United Airlines flights we've found departing from Ontario to Porto. Be sure to come back soon if the deals available don't appeal to you at this time.
Sun 10/206:00 amONT - OPO
2 stops19h 45mUnited Airlines
Fri 11/86:00 amOPO - ONT
2 stops23h 52mUnited Airlines
Deal found 6/1$682
Tue 11/56:00 amONT - OPO
2 stops25h 25mUnited Airlines
Tue 12/106:00 amOPO - ONT
2 stops24h 05mUnited Airlines
Deal found 6/1$693
Tue 10/156:00 amONT - OPO
2 stops19h 45mUnited Airlines
Wed 10/236:00 amOPO - ONT
2 stops22h 32mUnited Airlines
Deal found 6/1$720
Sun 10/136:00 amONT - OPO
2 stops19h 45mUnited Airlines
Wed 10/236:00 amOPO - ONT
2 stops19h 17mUnited Airlines
Deal found 6/1$1,003
Mon 7/86:00 amONT - OPO
2 stops16h 55mUnited Airlines
Wed 7/179:00 amOPO - ONT
2 stops21h 45mUnited Airlines
Deal found 6/1$1,042
Sun 7/76:00 amONT - OPO
2 stops19h 45mUnited Airlines
Tue 10/16:00 amOPO - ONT
2 stops19h 43mUnited Airlines
Deal found 6/1$1,046
Tue 10/16:00 amONT - OPO
2 stops19h 45mUnited Airlines
Mon 10/146:00 amOPO - ONT
2 stops19h 43mUnited Airlines
Deal found 6/1$1,192
Mon 7/15:10 amONT - OPO
2 stops20h 35mUnited Airlines
Tue 10/16:00 amOPO - ONT
2 stops19h 43mUnited Airlines
Deal found 6/1$1,240
Tue 7/166:00 amONT - OPO
2 stops19h 45mUnited Airlines
Tue 7/239:00 amOPO - ONT
2 stops19h 48mUnited Airlines
Deal found 6/1$1,627

Cheap Iberia flights from Ontario to Porto

Explore cheap flight options specifically provided by Iberia for the route between Ontario 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.
Browse through some of the cheapest Iberia flights traveling from Ontario to Porto. Ensure the flight price, dates, time, and airline match your criteria before you book.
Thu 8/222:39 pmONT - OPO
2 stops17h 16mIberia
Wed 9/412:25 pmOPO - ONT
2 stops19h 01mIberia
Deal found 6/1$874
Sun 11/243:01 pmONT - OPO
2 stops16h 59mIberia
Sun 12/112:25 pmOPO - ONT
2 stops19h 42mIberia
Deal found 5/31$1,226
Tue 10/2910:56 amONT - OPO
2 stops17h 49mIberia
Wed 11/68:20 amOPO - ONT
2 stops23h 47mIberia
Deal found 6/1$2,193
Wed 7/2410:48 amONT - OPO
2 stops16h 52mIberia
Sun 8/48:15 amOPO - ONT
2 stops18h 35mIberia
Deal found 6/1$5,498

Cheap Ontario to Porto flights in June & July 2024

Find cheap flight options from Ontario 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 Ontario to Porto in 2024. More deals are always being added, so be sure to check back regularly.
Wed 6/1911:59 pmONT - OPO
2 stops35h 56mAmerican Airlines
Sat 6/298:15 amOPO - ONT
2 stops42h 42mAmerican Airlines
Deal found 6/2$2,139
Tue 6/410:39 amONT - OPO
2 stops17h 06mAmerican Airlines
Tue 6/1112:25 pmOPO - ONT
2 stops19h 34mAmerican Airlines
Deal found 5/31$2,461
Fri 5/3110:29 pmONT - OPO
2 stops29h 11mAmerican Airlines
Mon 6/312:20 pmOPO - ONT
2 stops19h 36mAmerican Airlines
Deal found 5/31$3,872

Ontario to Porto 2024 flight deals

Discover exclusive flight deals for travel between Ontario 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 Ontario to Porto in 2024. More deals are always being added, so be sure to check back regularly.
Sun 10/206:00 amONT - OPO
2 stops19h 45mUnited Airlines
Fri 11/86:00 amOPO - ONT
2 stops23h 52mUnited Airlines
Deal found 6/1$682
Tue 11/510:34 amONT - OPO
2 stops20h 51mUnited Airlines
Tue 12/106:00 amOPO - ONT
2 stops22h 17mUnited Airlines
Deal found 6/2$693
Sun 8/45:00 pmONT - OPO
2 stops21h 15mDelta
Fri 9/136:30 amOPO - ONT
2 stops25h 16mDelta
Deal found 6/2$720
Mon 12/210:34 amONT - OPO
2 stops20h 51mUnited Airlines
Sat 12/146:00 amOPO - ONT
2 stops24h 05mUnited Airlines
Deal found 5/31$842
Sun 8/45:00 pmONT - OPO
2 stops21h 15mDelta
Fri 9/136:30 amOPO - ONT
2 stops25h 21mDelta
Deal found 6/1$870
Thu 8/222:39 pmONT - OPO
2 stops17h 16mIberia
Wed 9/412:25 pmOPO - ONT
2 stops19h 01mIberia
Deal found 6/1$874
Tue 9/102:52 pmONT - OPO
2 stops17h 03mIberia
Tue 10/112:25 pmOPO - ONT
2 stops19h 01mIberia
Deal found 6/1$919
Tue 11/511:11 pmONT - OPO
2 stops24h 29mAmerican Airlines
Tue 12/108:20 amOPO - ONT
3 stops32h 21mAmerican Airlines
Deal found 6/1$977
Mon 9/912:47 pmONT - OPO
2 stops34h 48mAmerican Airlines
Mon 9/2312:20 pmOPO - ONT
2 stops41h 52mAmerican Airlines
Deal found 6/1$992

Ontario to Porto flights leaving soon

Find last-minute flight options from Ontario 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 Ontario 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.
Tue 6/410:39 amONT - OPO
2 stops17h 06mAmerican Airlines
Tue 6/1112:25 pmOPO - ONT
2 stops19h 34mAmerican Airlines
Deal found 5/31$2,461

One-way flights to Porto from Ontario

Search for one-way flight options from Ontario 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.
Take a look at some of the best available options we've come across on one-way flights from Ontario to Porto. Those seeking round-trip flights from Ontario to Porto should utilize the search form at the the top of the page.
Fri 9/1310:50 amONT - OPO
2 stops25h 05mAmerican Airlines
Deal found 5/31$820
Sun 9/155:15 amONT - OPO
2 stops20h 30mUnited Airlines
Deal found 6/1$838
Wed 9/1811:36 pmONT - OPO
2 stops26h 09mMultiple Airlines
Deal found 6/1$862
Tue 9/1711:36 pmONT - OPO
2 stops27h 39mMultiple Airlines
Deal found 6/1$877
Mon 9/1611:36 pmONT - OPO
2 stops27h 34mMultiple Airlines
Deal found 6/1$978
Tue 9/101:35 pmONT - OPO
2 stops18h 10mMultiple Airlines
Deal found 6/1$3,626

Find flights from Ontario to Porto within your budget

Customize your flight search to find flights from Ontario 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

$682 - $1,205

Route

Depart

Return

Price

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Sun 10/20

2 stops19h 45m

Porto

Fri 11/8

2 stops23h 52m

$682

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 11/5

2 stops25h 25m

Porto

Tue 12/10

2 stops24h 05m

$693

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 10/15

2 stops19h 45m

Porto

Wed 10/23

2 stops22h 32m

$720

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Sun 8/4

2 stops21h 15m

Porto

Fri 9/13

2 stops25h 21m

$870

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Thu 8/22

2 stops17h 16m

Porto

Wed 9/4

2 stops19h 01m

$874

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 11/5

2 stops24h 29m

Porto

Tue 12/10

3 stops32h 21m

$977

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Mon 9/9

2 stops34h 48m

Porto

Mon 9/23

2 stops41h 52m

$992

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Sun 10/13

2 stops19h 45m

Porto

Wed 10/23

2 stops19h 17m

$1,003

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Fri 8/30

2 stops45h 06m

Porto

Wed 9/11

2 stops19h 31m

$1,205

Flights are sorted by cheapest first

Deals found on 6/1

No data available for this route at this time. Please check back soon.

Best time to book a flight from Ontario to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Ontario 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.

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.
Read reviews from past customers who have flown United Airlines, Iberia and American Airlines from Ontario to Porto. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,410 reviews
Check prices

Food

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

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

Food

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

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

Food

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

American Airlines
7.3
Good
14,260 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Food

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Iberia
7.1
Good
2,736 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Food

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

British Airways
6.8
Okay
6,755 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Food

7.4

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

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

  • Can I find flights from Ontario to Porto for under $700 on Cheapflights?

    Yes, there are multiple flights from Ontario to Porto for under $700. The cheapest flight booked recently is on United Airlines for just $682, but on average you can expect to pay $1,310.

  • Are there last-minute flights available from Ontario to Porto for under $2,500?

    There are currently 1+ open flights from Ontario to Porto within the next 7 days for less than $2,500.

  • What does ONT to OPO mean?

    Ontario Airport is ONT and Porto Airport is OPO. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Ontario to Porto that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario 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 Ontario to Porto with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario 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 Ontario to Porto that include hotel bookings?

    Yes. In addition to deals on Ontario to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Porto?

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

  • Can I find deals for business class flights from Ontario to Porto?

    Yes. Cheapflights offers flight deals from Ontario 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 Ontario to Porto that allow pets onboard?

    Many airlines flying from Ontario 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 Ontario to Porto?

    Yes, you can often find last-minute deals on Ontario 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 Ontario to Porto flight deals updated?

    The Ontario to Porto flight deals you see on this page were last updated on 6/2.

  • What is the cheapest month to book a flight from Ontario to Porto?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Porto (average of $523). Flying from Ontario 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

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Search flights from Ontario to Porto by cabin class

Find flights from Ontario to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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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 Ontario to Porto?

Cheapflights helps you search for flights from Ontario to Porto via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ontario 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 Ontario to Porto.

Can Cheapflights find flights from Ontario to Porto with no change fees?

Certainly. Search results for flights to Porto from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ontario to Porto become cheaper?

Of course! You can now track prices for flights from Ontario to Porto and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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