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Cheap flights from Portland to St. Louis (PWM - STL) from $138

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 7/2. 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.
PWM — STL
Mai 3 — Mai 101
From?
To?
Fr 5/3
Fr 5/10
1 adult, Economy
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The best prices from Portland to Lambert-St Louis are usually found in March or January, booked 47 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Portland to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) 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 April 28, 2024.

Popular in

December

Cheapest in

March

Average price

$549

Round-trip from

$323
High demand for flights, 23% potential price rise
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Best time to find cheap flights, 23% potential price drop
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Average for round-trip flights in April 2024
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From Portland to Lambert-St Louis
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What is the cheapest day to fly round-trip from Portland, Maine to St. Louis?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 56% when planning your travel around this day of the week.

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

To save up to 189% on this flight, we recommend booking at least 48 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portland, Maine to St. Louis from $565 1-2 weeks out and tickets from $700 for flights departing within the next 72 hours.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, March can be a great choice for travel to St. Louis. Flights to St. Louis from Portland, Maine in March are about $472 on average during March, but can be found for as low as $314.

When is the cheapest time to fly from Portland, Maine to St. Louis (PWM - STL)?

When flying from Portland, Maine to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 8% versus a flight in the morning.

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 2,991,349 searches. Data last updated April 28, 2024.
Check out some of the cheapest Delta flights we've come across from Portland to St. Louis. Come back soon if you're not finding the exact deal you're looking for.
Do 5/2311:42 amPWM - STL
1 stop6h 34mDelta
So 5/265:29 pmSTL - PWM
1 stop5h 15mDelta
Deal found 4/27$327
Mi 8/213:15 pmPWM - STL
1 stop6h 51mDelta
Sa 8/245:05 pmSTL - PWM
1 stop5h 34mDelta
Deal found 4/27$346
Mi 8/213:15 pmPWM - STL
1 stop6h 51mDelta
Sa 8/245:30 pmSTL - PWM
2 stops20h 49mDelta
Deal found 4/27$396
So 5/195:00 amPWM - STL
1 stop5h 19mDelta
So 5/265:29 pmSTL - PWM
1 stop5h 15mDelta
Deal found 4/28$456
Do 5/3011:42 amPWM - STL
1 stop6h 34mDelta
So 6/26:12 pmSTL - PWM
1 stop4h 32mDelta
Deal found 4/27$538
So 7/285:37 amPWM - STL
1 stop4h 46mDelta
Do 8/13:43 pmSTL - PWM
1 stop5h 11mDelta
Deal found 4/27$618
Do 5/165:00 amPWM - STL
1 stop5h 19mDelta
So 5/196:12 pmSTL - PWM
1 stop4h 32mDelta
Deal found 4/27$659
Mi 5/295:00 amPWM - STL
2 stops10h 15mDelta
So 6/29:59 amSTL - PWM
2 stops11h 51mDelta
Deal found 4/27$1,282
Sa 5/255:00 amPWM - STL
2 stops10h 15mDelta
Mo 5/276:00 amSTL - PWM
2 stops10h 00mDelta
Deal found 4/27$1,392

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 2,991,349 searches. Data last updated April 28, 2024.
Some of the best deals we've found on American Airlines flights traveling from Portland to St. Louis. Check back soon if you're not seeing flights that suit your needs.
Mi 7/312:34 pmPWM - STL
1 stop5h 17mAmerican Airlines
Mi 7/105:46 pmSTL - PWM
1 stop5h 00mAmerican Airlines
Deal found 4/27$276
Mi 6/54:13 pmPWM - STL
1 stop5h 43mAmerican Airlines
So 6/95:38 pmSTL - PWM
1 stop6h 14mAmerican Airlines
Deal found 4/27$314
Fr 5/246:03 amPWM - STL
1 stop5h 26mAmerican Airlines
Mi 5/294:20 pmSTL - PWM
1 stop5h 24mAmerican Airlines
Deal found 4/27$414
Sa 5/256:03 amPWM - STL
1 stop5h 27mAmerican Airlines
Mo 5/275:04 amSTL - PWM
1 stop5h 43mAmerican Airlines
Deal found 4/27$439
Mi 5/297:45 amPWM - STL
1 stop6h 25mAmerican Airlines
So 6/25:04 pmSTL - PWM
1 stop5h 43mAmerican Airlines
Deal found 4/27$504
Mo 5/203:41 pmPWM - STL
1 stop6h 14mAmerican Airlines
Mo 5/276:40 amSTL - PWM
1 stop7h 31mAmerican Airlines
Deal found 4/27$531
Sa 5/256:03 amPWM - STL
2 stops10h 25mAmerican Airlines
Mo 5/275:04 amSTL - PWM
1 stop5h 43mAmerican Airlines
Deal found 4/27$549
Mi 5/85:30 pmPWM - STL
1 stop4h 30mAmerican Airlines
So 5/126:40 amSTL - PWM
1 stop4h 46mAmerican Airlines
Deal found 4/27$577
Mi 5/12:36 pmPWM - STL
1 stop7h 40mAmerican Airlines
Sa 5/44:42 pmSTL - PWM
1 stop4h 37mAmerican Airlines
Deal found 4/26$604

Cheap Portland to St. Louis flights in April & May 2024

Find cheap flight options from Portland to St. Louis specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,991,349 searches. Prices were last updated on April 28, 2024.
Check out some of the best flight deals from Portland to St. Louis in 2024. More deals are always being added, so be sure to check back regularly.
Do 5/2311:42 amPWM - STL
1 stop6h 34mDelta
So 5/265:29 pmSTL - PWM
1 stop5h 15mDelta
Deal found 4/27$327
Fr 5/246:03 amPWM - STL
1 stop5h 26mAmerican Airlines
Mi 5/294:20 pmSTL - PWM
1 stop5h 24mAmerican Airlines
Deal found 4/27$414
Sa 5/256:03 amPWM - STL
1 stop5h 27mAmerican Airlines
Mo 5/275:04 amSTL - PWM
1 stop5h 43mAmerican Airlines
Deal found 4/27$439
So 5/195:00 amPWM - STL
1 stop5h 19mDelta
So 5/265:29 pmSTL - PWM
1 stop5h 15mDelta
Deal found 4/28$456
Mi 5/297:45 amPWM - STL
1 stop6h 25mAmerican Airlines
So 6/25:04 pmSTL - PWM
1 stop5h 43mAmerican Airlines
Deal found 4/27$504
Mo 5/203:41 pmPWM - STL
1 stop6h 14mAmerican Airlines
Mo 5/276:40 amSTL - PWM
1 stop7h 31mAmerican Airlines
Deal found 4/27$531
Do 5/3011:42 amPWM - STL
1 stop6h 34mDelta
So 6/26:12 pmSTL - PWM
1 stop4h 32mDelta
Deal found 4/27$538
Mi 5/812:08 pmPWM - STL
3 stops31h 32mMultiple Airlines
So 5/126:19 pmSTL - PWM
2 stops14h 50mMultiple Airlines
Deal found 4/27$539
Sa 5/256:03 amPWM - STL
2 stops10h 25mAmerican Airlines
Mo 5/275:04 amSTL - PWM
1 stop5h 43mAmerican Airlines
Deal found 4/27$549

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 2,991,349 searches. Data last updated April 28, 2024.
Check out some of the best flight deals from Portland to St. Louis in 2024. More deals are always being added, so be sure to check back regularly.
Mi 7/312:34 pmPWM - STL
1 stop5h 17mAmerican Airlines
Mi 7/105:46 pmSTL - PWM
1 stop5h 00mAmerican Airlines
Deal found 4/27$276
Mi 6/54:13 pmPWM - STL
1 stop5h 43mAmerican Airlines
So 6/95:38 pmSTL - PWM
1 stop6h 14mAmerican Airlines
Deal found 4/27$314
Do 5/2311:42 amPWM - STL
1 stop6h 34mDelta
So 5/265:29 pmSTL - PWM
1 stop5h 15mDelta
Deal found 4/27$327
Mi 8/213:15 pmPWM - STL
1 stop6h 51mDelta
Sa 8/245:05 pmSTL - PWM
1 stop5h 34mDelta
Deal found 4/27$346
Mi 8/213:15 pmPWM - STL
1 stop6h 51mDelta
Sa 8/245:30 pmSTL - PWM
2 stops20h 49mDelta
Deal found 4/27$396
Fr 5/246:03 amPWM - STL
1 stop5h 26mAmerican Airlines
Mi 5/294:20 pmSTL - PWM
1 stop5h 24mAmerican Airlines
Deal found 4/27$414
Sa 5/256:03 amPWM - STL
1 stop5h 27mAmerican Airlines
Mo 5/275:04 amSTL - PWM
1 stop5h 43mAmerican Airlines
Deal found 4/27$439
So 5/195:00 amPWM - STL
1 stop5h 19mDelta
So 5/265:29 pmSTL - PWM
1 stop5h 15mDelta
Deal found 4/28$456
Mi 5/297:45 amPWM - STL
1 stop6h 25mAmerican Airlines
So 6/25:04 pmSTL - PWM
1 stop5h 43mAmerican Airlines
Deal found 4/27$504

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 2,991,349 searches. Data last updated April 28, 2024.
Consider one of these great deals we found on last-minute flights from Portland to St. Louis. Tip: verify your flight details before completing your reservation.
Mi 5/812:08 pmPWM - STL
3 stops31h 32mMultiple Airlines
So 5/126:19 pmSTL - PWM
2 stops14h 50mMultiple Airlines
Deal found 4/27$539
Mi 5/85:30 pmPWM - STL
1 stop4h 30mAmerican Airlines
So 5/126:40 amSTL - PWM
1 stop4h 46mAmerican Airlines
Deal found 4/27$577
Mi 5/812:08 pmPWM - STL
3 stops31h 32mMultiple Airlines
So 5/122:00 pmSTL - PWM
3 stops19h 09mMultiple Airlines
Deal found 4/27$579
Mi 5/12:36 pmPWM - STL
1 stop7h 40mAmerican Airlines
Sa 5/44:42 pmSTL - PWM
1 stop4h 37mAmerican Airlines
Deal found 4/26$604
Di 5/72:32 pmPWM - STL
1 stop7h 28mAmerican Airlines
Do 5/166:40 amSTL - PWM
1 stop4h 46mAmerican Airlines
Deal found 4/25$676
Mi 5/14:30 pmPWM - STL
1 stop6h 19mUnited Airlines
Sa 5/48:05 amSTL - PWM
2 stops12h 47mUnited Airlines
Deal found 4/26$785
Mi 5/86:00 amPWM - STL
2 stops10h 32mAmerican Airlines
So 5/125:04 amSTL - PWM
1 stop5h 43mAmerican Airlines
Deal found 4/27$795
Mi 5/16:05 amPWM - STL
2 stops10h 41mUnited Airlines
Sa 5/411:10 amSTL - PWM
2 stops9h 42mUnited Airlines
Deal found 4/26$969
Mi 5/86:00 amPWM - STL
2 stops10h 32mAmerican Airlines
So 5/121:01 pmSTL - PWM
2 stops8h 40mAmerican Airlines
Deal found 4/27$1,003

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 2,991,349 searches. Data last updated April 28, 2024.
Take a look at some of the best available options we've come across on one-way flights from Portland to St. Louis. Those seeking round-trip flights from Portland to St. Louis should utilize the search form at the the top of the page.
Di 7/27:42 amPWM - STL
1 stop7h 34mAmerican Airlines
Deal found 4/27$138
So 10/66:07 amPWM - STL
1 stop4h 47mAmerican Airlines
Deal found 4/27$168
Sa 7/2011:40 amPWM - STL
1 stop6h 59mAmerican Airlines
Deal found 4/27$189
So 5/127:45 amPWM - STL
1 stop6h 25mAmerican Airlines
Deal found 4/27$207
Fr 7/196:01 amPWM - STL
1 stop7h 18mDelta
Deal found 4/27$208
Di 7/27:22 pmPWM - STL
2 stops21h 18mUnited Airlines
Deal found 4/27$274
Sa 7/65:31 amPWM - STL
1 stop8h 11mAmerican Airlines
Deal found 4/27$278
So 7/71:27 pmPWM - STL
3 stops23h 38mMultiple Airlines
Deal found 4/27$297
So 7/71:27 pmPWM - STL
3 stops24h 33mMultiple Airlines
Deal found 4/27$313

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 2,991,349 searches. Data last updated April 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$276 - $562

Route

Depart

Return

Price

PortlandLambert-St Louis

PWM - STL

PWMSTL

Portland

Mi 7/3

1 stop5h 17m

Lambert-St Louis

Mi 7/10

1 stop5h 00m

$276

PortlandLambert-St Louis

PWM - STL

PWMSTL

Portland

Mi 6/5

1 stop5h 43m

Lambert-St Louis

So 6/9

1 stop6h 14m

$314

PortlandLambert-St Louis

PWM - STL

PWMSTL

Portland

Do 5/23

1 stop6h 34m

Lambert-St Louis

So 5/26

1 stop5h 15m

$327

PortlandLambert-St Louis

PWM - STL

PWMSTL

Portland

Mi 8/21

1 stop6h 51m

Lambert-St Louis

Sa 8/24

1 stop5h 34m

$346

PortlandLambert-St Louis

PWM - STL

PWMSTL

Portland

Mi 8/21

1 stop6h 51m

Lambert-St Louis

Sa 8/24

2 stops20h 49m

$396

PortlandLambert-St Louis

PWM - STL

PWMSTL

Portland

Fr 5/24

1 stop5h 26m

Lambert-St Louis

Mi 5/29

1 stop5h 24m

$414

PortlandLambert-St Louis

PWM - STL

PWMSTL

Portland

Sa 5/25

1 stop5h 27m

Lambert-St Louis

Mo 5/27

1 stop5h 43m

$439

PortlandLambert-St Louis

PWM - STL

PWMSTL

Portland

Mi 5/8

3 stops31h 32m

Lambert-St Louis

So 5/12

2 stops14h 50m

$539

PortlandLambert-St Louis

PWM - STL

PWMSTL

Portland

Do 5/23

1 stop6h 54m

Lambert-St Louis

So 5/26

2 stops16h 01m

$562

Flights are sorted by cheapest first

Deals found on 4/27

When is the best time to book a flight from Portland, Maine 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 January 28, 2024.
The price you pay for your flight from Portland, Maine to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

When is the cheapest time to fly from Portland, Maine 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 April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Portland, Maine to St. Louis flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to St. Louis by month

Plan your trip from Portland to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Portland to St. Louis is currently $230 while a round-trip flight costs $401. Price data was last updated on April 21, 2024.

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to St. Louis (average of $323). Flying from Portland, Maine to St. Louis in July is currently the most expensive (average of $378). 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.

January

$326

February

$331

March

$357

April

$337

May

$350

June

$373

July

$378

August

$336

September

$323

October

$323

November

$336

December

$326

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 April 28, 2024.
Peruse reviews from past customers who have flown with Delta, American Airlines and United Airlines from Portland to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,951 reviews
Check prices

Comfort

7.9

Crew

8.6

Entertainment

8.0

Boarding

8.2

Overall

8.1

Food

7.4

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very good
10,951 reviews
Delta
8.1
Very good
10,951 reviews
Check prices

Comfort

7.9

Crew

8.6

Entertainment

8.0

Boarding

8.2

Overall

8.1

Food

7.4

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

United Airlines
7.4
Good
11,228 reviews
Delta
8.1
Very good
10,951 reviews
Check prices

Comfort

7.9

Crew

8.6

Entertainment

8.0

Boarding

8.2

Overall

8.1

Food

7.4

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

American Airlines
7.3
Good
14,875 reviews
Delta
8.1
Very good
10,951 reviews
Check prices

Comfort

7.9

Crew

8.6

Entertainment

8.0

Boarding

8.2

Overall

8.1

Food

7.4

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

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, Maine to St. Louis for under $300 on Cheapflights?

    Yes, there are multiple flights from Portland, Maine to St. Louis for under $300. The cheapest flight booked recently is on American Airlines for just $276, but on average you can expect to pay $490.

  • Are there last-minute flights available from Portland, Maine to St. Louis for under $600?

    There are currently 9+ open flights from Portland, Maine to St. Louis within the next 7 days for less than $600.

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

    Flying on American Airlines is currently your cheapest option to St. Louis, with prices starting at $276. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $327 and $562, respectively. American Airlines is 41% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $138. Users have also found prices from $208 and $274 on Delta and United Airlines, respectively.

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

    When booking a flight from Portland, Maine to St. Louis, you may want to consider flying on American Airlines, JetBlue or Delta as they are the most popular for this route.

  • What does PWM to STL mean?

    PWM 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.

  • 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, Maine to St. Louis flight deals updated?

    The Portland, Maine to St. Louis flight deals you see on this page were last updated on 4/28.

See more FAQs

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Alternative routes for Portland to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 4 airlines flying from Portland to St. Louis

Discover the top 4 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 2,991,349 searches. Data last updated April 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$242Average$474FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest$338Average$540FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$346Average$485FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$363Average$501FlexibilityNo cancel feeOn-time71%
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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

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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 Portland to St. Louis?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Portland to St. Louis. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to St. Louis from Portland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to St. Louis from Portland 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 Portland to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Portland to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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