HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Portland to St. Louis (PDX - STL) from $94

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 6/7. 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.
PDX — STL
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 Portland to Lambert-St Louis are usually found in January or November, booked 79 days in advance, depart on a Saturday or Tuesday and return on a Saturday

Cheap flight deals from Portland to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to St. Louis (STL). 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

December

Cheapest in

January

Round-trip from

$319

One-way from

$101
High demand for flights, 18% potential price rise
Search Deals
Best time to find cheap flights, 10% potential price drop
Search Deals
From Portland to Lambert-St Louis
Search Deals
One-way flight from Portland to Lambert-St Louis
Search Deals

What is the cheapest day to fly round-trip from Portland to St. Louis?

Travelers have found that booking a Friday departure is the best way to save up to 18% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Portland to St. Louis?

To save on the cost of your flight from Portland to St. Louis, book at least 19 days before your planned departure. Booking around this time can save you about 47% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $454 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $465.

What is the cheapest month to fly from Portland to St. Louis?

January can be a great time to fly to St. Louis from Portland with a flight ticket averaging about $432. Cheapflights users have found deals in the month of January for as cheap as $256. The most expensive prices can be found in the month of December.

What is the cheapest time of day to fly from PDX to STL?

Unlike in the morning, when flights are generally more expensive, you can save up to 29% on flights from Portland to St. Louis by exploring options for tickets in the evening.

Cheap American Airlines flights from Portland to St. Louis

Explore cheap flight options specifically provided by American Airlines for the route between Portland and St. Louis. 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 peek at the cheapest American Airlines flights we've detected traveling from Portland to St. Louis. Come back soon if you're not finding the exact deal you're looking for.
Thu 8/2211:59 pmPDX - STL
1 stop7h 05mAmerican Airlines
Mon 8/266:00 amSTL - PDX
1 stop8h 43mAmerican Airlines
Deal found 5/31$196
Fri 6/711:59 pmPDX - STL
1 stop6h 55mAmerican Airlines
Mon 6/106:08 pmSTL - PDX
1 stop6h 50mAmerican Airlines
Deal found 6/1$199
Thu 8/2211:59 pmPDX - STL
1 stop7h 05mAmerican Airlines
Sun 8/254:22 pmSTL - PDX
1 stop8h 39mAmerican Airlines
Deal found 6/1$267
Wed 7/311:59 pmPDX - STL
1 stop6h 55mAmerican Airlines
Tue 7/96:09 pmSTL - PDX
1 stop7h 08mAmerican Airlines
Deal found 6/1$297
Wed 7/1712:59 amPDX - STL
1 stop6h 30mAmerican Airlines
Tue 7/236:09 pmSTL - PDX
1 stop7h 08mAmerican Airlines
Deal found 6/1$390
Mon 6/1012:59 amPDX - STL
1 stop9h 15mAmerican Airlines
Tue 6/115:27 pmSTL - PDX
1 stop9h 11mAmerican Airlines
Deal found 5/31$468
Wed 7/31:22 pmPDX - STL
1 stop7h 36mAmerican Airlines
Sun 7/76:04 amSTL - PDX
1 stop8h 42mAmerican Airlines
Deal found 6/1$594

Cheap Delta flights from Portland to St. Louis

Explore cheap flight options specifically provided by Delta for the route between Portland and St. Louis. 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 Delta flights from Portland to St. Louis. Make sure to examine the flight information before completing your reservation.
Fri 8/2311:15 pmPDX - STL
1 stop7h 59mDelta
Mon 8/266:06 amSTL - PDX
1 stop6h 43mDelta
Deal found 6/1$234
Fri 8/912:39 amPDX - STL
1 stop7h 54mDelta
Sat 8/175:52 pmSTL - PDX
2 stops8h 00mDelta
Deal found 6/1$289
Fri 7/195:22 pmPDX - STL
1 stop5h 33mDelta
Sun 7/216:30 pmSTL - PDX
1 stop7h 09mDelta
Deal found 6/1$290
Thu 8/225:15 amPDX - STL
2 stops10h 19mDelta
Sun 8/256:06 amSTL - PDX
1 stop6h 43mDelta
Deal found 6/1$294
Tue 9/105:15 amPDX - STL
2 stops10h 20mDelta
Thu 9/266:30 pmSTL - PDX
1 stop7h 07mDelta
Deal found 6/1$326
Tue 6/115:10 amPDX - STL
1 stop6h 24mDelta
Tue 6/116:25 pmSTL - PDX
1 stop7h 27mDelta
Deal found 5/31$476
Thu 9/1212:52 amPDX - STL
1 stop7h 29mDelta
Sat 9/213:18 pmSTL - PDX
2 stops8h 58mDelta
Deal found 6/1$621
Fri 6/711:11 pmPDX - STL
1 stop8h 04mDelta
Wed 6/127:55 amSTL - PDX
1 stop6h 34mDelta
Deal found 6/1$720
Fri 6/75:19 pmPDX - STL
1 stop5h 39mDelta
Thu 6/136:25 pmSTL - PDX
1 stop7h 27mDelta
Deal found 6/1$730

Cheap Portland to St. Louis flights in June & July 2024

Find cheap flight options from Portland to St. Louis 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.
Scroll through some of the best deals on flights from Portland to St. Louis in 2024. Check back regularly for other flight deals.
Fri 6/712:49 amPDX - STL
1 stop6h 40mFrontier
Wed 6/128:02 pmSTL - PDX
1 stop13h 48mFrontier
Deal found 6/1$190
Thu 6/612:56 amPDX - STL
1 stop6h 44mFrontier
Wed 6/128:02 pmSTL - PDX
1 stop13h 48mFrontier
Deal found 6/1$199
Sun 6/21:25 pmPDX - STL
1 stop7h 52mAmerican Airlines
Tue 6/46:18 pmSTL - PDX
1 stop6h 45mAmerican Airlines
Deal found 6/1$202
Wed 6/512:49 amPDX - STL
1 stop11h 43mFrontier
Tue 6/113:47 pmSTL - PDX
1 stop17h 03mFrontier
Deal found 6/1$210
Wed 6/512:49 amPDX - STL
1 stop11h 43mFrontier
Tue 6/117:29 pmSTL - PDX
2 stops21h 48mFrontier
Deal found 6/1$215
Thu 6/612:56 amPDX - STL
1 stop6h 44mFrontier
Mon 6/108:22 pmSTL - PDX
1 stop12h 28mFrontier
Deal found 6/1$219
Thu 6/64:40 pmPDX - STL
2 stops27h 19mFrontier
Tue 6/117:29 pmSTL - PDX
2 stops21h 48mFrontier
Deal found 6/1$220
Thu 6/612:56 amPDX - STL
1 stop6h 44mFrontier
Mon 6/107:29 pmSTL - PDX
2 stops23h 09mFrontier
Deal found 6/1$228
Fri 6/712:49 amPDX - STL
1 stop6h 40mFrontier
Thu 6/133:32 pmSTL - PDX
1 stop17h 13mFrontier
Deal found 6/1$229

Portland to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Portland and St. Louis 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.
Scroll through some of the best deals on flights from Portland to St. Louis in 2024. Check back regularly for other flight deals.
Tue 9/175:23 amPDX - STL
1 stop8h 18mSpirit Airlines
Tue 9/248:00 amSTL - PDX
1 stop9h 07mSpirit Airlines
Deal found 6/1$116
Tue 9/105:23 amPDX - STL
1 stop8h 18mMultiple Airlines
Thu 9/263:53 pmSTL - PDX
1 stop9h 47mMultiple Airlines
Deal found 6/1$141
Tue 9/1712:35 pmPDX - STL
2 stops20h 11mSpirit Airlines
Tue 9/248:00 amSTL - PDX
2 stops26h 41mSpirit Airlines
Deal found 6/1$158
Mon 9/1612:48 amPDX - STL
1 stop9h 02mMultiple Airlines
Tue 9/248:00 amSTL - PDX
1 stop9h 07mMultiple Airlines
Deal found 6/1$160
Thu 8/229:02 pmPDX - STL
1 stop14h 02mSpirit Airlines
Wed 8/281:59 pmSTL - PDX
1 stop12h 18mSpirit Airlines
Deal found 6/2$161
Fri 9/274:30 pmPDX - STL
1 stop15h 48mMultiple Airlines
Tue 10/18:00 amSTL - PDX
1 stop14h 21mMultiple Airlines
Deal found 6/2$167
Mon 9/912:48 amPDX - STL
1 stop9h 02mFrontier
Thu 9/263:53 pmSTL - PDX
1 stop9h 47mFrontier
Deal found 6/1$176
Wed 7/312:52 amPDX - STL
1 stop17h 10mMultiple Airlines
Wed 7/174:02 pmSTL - PDX
1 stop9h 39mMultiple Airlines
Deal found 6/1$180
Wed 7/175:15 amPDX - STL
1 stop7h 51mMultiple Airlines
Mon 7/227:51 pmSTL - PDX
1 stop6h 02mMultiple Airlines
Deal found 6/1$182

Portland to St. Louis flights leaving soon

Find last-minute flight options from Portland to St. Louis 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.
Have a look at some of the last-minute flights available departing from Portland to St. Louis. To prevent any unwanted surprises, users should verify their flight info before booking.
Fri 6/712:49 amPDX - STL
1 stop6h 40mFrontier
Wed 6/128:02 pmSTL - PDX
1 stop13h 48mFrontier
Deal found 6/1$190
Fri 6/711:59 pmPDX - STL
1 stop6h 55mAmerican Airlines
Mon 6/106:08 pmSTL - PDX
1 stop6h 50mAmerican Airlines
Deal found 6/1$199
Fri 6/77:45 amPDX - STL
1 stop23h 44mFrontier
Mon 6/107:29 pmSTL - PDX
2 stops23h 09mFrontier
Deal found 6/1$228
Fri 6/712:49 amPDX - STL
1 stop6h 40mFrontier
Thu 6/133:32 pmSTL - PDX
1 stop17h 13mFrontier
Deal found 6/1$229
Mon 6/1012:49 amPDX - STL
1 stop11h 58mFrontier
Tue 6/117:29 pmSTL - PDX
2 stops21h 48mFrontier
Deal found 5/31$230
Fri 6/77:45 amPDX - STL
1 stop23h 44mFrontier
Wed 6/127:29 pmSTL - PDX
2 stops21h 46mFrontier
Deal found 6/1$234
Sun 6/99:07 pmPDX - STL
1 stop14h 44mMultiple Airlines
Sun 6/166:30 amSTL - PDX
1 stop18h 26mMultiple Airlines
Deal found 6/1$244
Sun 6/99:07 pmPDX - STL
1 stop14h 44mMultiple Airlines
Sun 6/167:29 pmSTL - PDX
2 stops21h 22mMultiple Airlines
Deal found 6/1$270
Sun 6/99:07 pmPDX - STL
1 stop14h 44mMultiple Airlines
Sun 6/167:29 pmSTL - PDX
2 stops21h 22mMultiple Airlines
Deal found 6/2$278

One-way flights to St. Louis from Portland

Search for one-way flight options from Portland to St. Louis. 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 Portland to St. Louis. Users needing a return flight from Portland to St. Louis should utilize the search form above.
Fri 6/712:49 amPDX - STL
1 stop6h 40mFrontier
Deal found 6/1$94
Wed 6/1211:55 pmPDX - STL
1 stop8h 37mAmerican Airlines
Deal found 6/1$98
Fri 6/71:22 pmPDX - STL
1 stop7h 36mAmerican Airlines
Deal found 6/1$101
Wed 6/1211:53 pmPDX - STL
2 stops18h 02mMultiple Airlines
Deal found 6/1$105
Tue 6/189:39 amPDX - STL
2 stops25h 26mSpirit Airlines
Deal found 6/1$106
Tue 6/1812:49 amPDX - STL
1 stop6h 40mFrontier
Deal found 6/1$110
Fri 7/56:00 amPDX - STL
1 stop6h 16mSpirit Airlines
Deal found 6/1$112
Mon 6/2412:49 amPDX - STL
1 stop11h 58mFrontier
Deal found 6/1$116
Thu 7/115:22 pmPDX - STL
1 stop5h 33mDelta
Deal found 6/2$117

Find flights from Portland to St. Louis within your budget

Customize your flight search to find flights from Portland to St. Louis 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

$116 - $365

Route

Depart

Return

Price

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Tue 9/17

1 stop8h 18m

Lambert-St Louis

Tue 9/24

1 stop9h 07m

$116

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Tue 9/10

1 stop8h 18m

Lambert-St Louis

Thu 9/26

1 stop9h 47m

$141

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Tue 9/17

2 stops20h 11m

Lambert-St Louis

Tue 9/24

2 stops26h 41m

$158

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Mon 9/16

1 stop9h 02m

Lambert-St Louis

Tue 9/24

1 stop9h 07m

$160

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Mon 9/9

1 stop9h 02m

Lambert-St Louis

Thu 9/26

1 stop9h 47m

$176

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Thu 8/22

1 stop7h 05m

Lambert-St Louis

Mon 8/26

1 stop8h 43m

$196

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Fri 8/23

1 stop7h 59m

Lambert-St Louis

Mon 8/26

1 stop6h 43m

$234

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Wed 8/21

1 stop7h 42m

Lambert-St Louis

Mon 8/26

2 stops8h 25m

$329

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Wed 6/19

1 stop6h 20m

Lambert-St Louis

Tue 6/25

1 stop12h 26m

$365

Flights are sorted by cheapest first

Deals found on 6/1

How far ahead should I book a flight from Portland to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Portland to St. Louis. Price data was last updated on May 31, 2024.
The best time to book flights from Portland to St. Louis is 79 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 Portland to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Portland to St. Louis. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Portland to St. Louis flight should consider departing on Thursday evenings when fares are most often at their lowest. Friday 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 Portland to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Portland 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 St. Louis by month

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

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated June 2, 2024.
Read through reviews of airlines operating flights from Portland to St. Louis, such as American Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Crew

8.6

Entertainment

7.3

Boarding

8.2

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,198 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Crew

8.6

Entertainment

7.3

Boarding

8.2

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,410 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Crew

8.6

Entertainment

7.3

Boarding

8.2

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,755 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Crew

8.6

Entertainment

7.3

Boarding

8.2

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,260 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Crew

8.6

Entertainment

7.3

Boarding

8.2

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Sun Country Air
7.2
Good
592 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Comfort

7.9

Crew

8.6

Entertainment

7.3

Boarding

8.2

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from Portland to St. Louis. 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 Portland to St. Louis for under $200 on Cheapflights?

    Yes, there are multiple flights from Portland to St. Louis for under $200. The cheapest flight booked recently is on Spirit Airlines for just $116, but on average you can expect to pay $184.

  • Are there last-minute flights available from Portland to St. Louis for under $200?

    There are currently 20+ open flights from Portland to St. Louis within the next 7 days for less than $200.

  • What are the cheapest airlines flying from Portland to St. Louis round-trip?

    Currently priced at $116, Spirit Airlines will fly you from Portland to St. Louis and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and American Airlines - these airlines can fly you to your destination from $176 and $196, respectively. Users have found that Spirit Airlines is 73% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Portland to St. Louis one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $94. American Airlines flights start at $98 while deals on Spirit Airlines start at $106 one-way.

  • What does PDX to STL mean?

    PDX stands for Portland Airport, while STL stands for Lambert-St Louis 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.

  • Where are the most common layover locations when flying from Portland to St. Louis?

    Portland to St. Louis flights have a layover in Denver most of the time.

  • What are some popular things to do or see while on a layover in Denver?

    If you're on a layover in Denver and looking for things to do, consider visiting Coors Field, 16th Street Mall, or Civic Center Park. Coors Field, 16th Street Mall, and Civic Center Park are located about 18.4 mi, 18.7 mi, and 18.7 mi, respectively from Denver Intl. Travelers can rent a car at Denver Intl for an average daily rate of $48 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Portland to St. Louis flights?

    Of the flights from Portland to St. Louis that have layovers, the fewest flights stop in Salt Lake City.

  • Can I find deals for flights from Portland to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Portland to St. Louis 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 Portland to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portland to St. Louis 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 Portland to St. Louis that include hotel bookings?

    Yes. In addition to deals on Portland to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to St. Louis?

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

  • Can I find deals for business class flights from Portland to St. Louis?

    Yes. Cheapflights offers flight deals from Portland to St. Louis 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 Portland to St. Louis that allow pets onboard?

    Many airlines flying from Portland to St. Louis 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 Portland to St. Louis?

    Yes, you can often find last-minute deals on Portland to St. Louis 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 Portland to St. Louis flight deals updated?

    The Portland to St. Louis flight deals you see on this page were last updated on 6/2.

  • What are the most popular airlines that fly from Portland to St. Louis?

    Before booking your flight from Portland to St. Louis check out the most popular airlines for this route: American Airlines, Alaska Airlines or Delta.

  • What is the cheapest month to book a flight from Portland to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Portland to St. Louis (average of $319). Flying from Portland to St. Louis in July is currently the most expensive (average of $366). 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 Portland to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

Portland to Kansas City flights
Boise to St. Louis flights
Portland to Springfield flights
Boise to Kansas City flights
Redmond to Kansas City flights
Eugene to Springfield flights
Medford to St. Louis flights
Eugene to St. Louis flights
Redmond to St. Louis flights
Boise to Springfield flights
Eugene to Kansas City flights
Medford to Kansas City flights
Portland to Columbia flights
Medford to Columbia flights
Boise to Columbia flights
Portland to Joplin flights
Medford to Joplin flights
Yakima to Springfield flights
Portland to Branson flights
Eugene to Columbia flights
Eugene to Cape Girardeau flights
Boise to Quincy flights
Boise to Joplin flights

Top 6 airlines flying from Portland to St. Louis

Discover the top 6 airlines that operate flights from Portland to St. Louis. 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
FrontierCheapest$110Average$214FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$149Average$204FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$279Average$454FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Alaska AirlinesCheapest$284Average$454FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapest$297Average$439FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$345Average$511FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Tampa to Nashville flights
Los Angeles to Madrid flights
Charlotte to Washington, D.C. flights
Indianapolis to Las Vegas flights
USA to Bali flights
Dallas to Houston flights
Austin to Nashville flights
USA to Bora Bora flights
Seattle to Las Vegas flights
Seattle to Honolulu flights
Phoenix to Los Angeles flights
Portland to London Stansted Airport flights

Search flights from Portland to St. Louis by cabin class

Find flights from Portland to St. Louis, 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 Portland to St. Louis?

When you search for this flight from Portland to St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Portland to St. Louis?

Millions of users choose and trust Cheapflights to book the best flight deals from Portland to St. Louis for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Portland to St. Louis with no change fees?

Need flexible booking options for your flight to St. Louis from Portland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Portland to St. Louis 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