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$74+ Cheap flights from St. Louis to Portland (STL - PDX)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Lambert-St Louis to Portland are usually found in September or January, booked 89 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from St. Louis to Portland

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Portland (PDX). 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 November 20, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

March

Cheapest in

September

Round-trip from

$198
(American Airlines)

One-way from

$74
(Frontier)
Provider with most accurate pricing for Lambert-St Louis-Portland flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Portland flights.
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High demand for flights, 15% potential price rise
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Best time to find cheap flights, 17% potential price drop
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From Lambert-St Louis to Portland
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One-way flight from Lambert-St Louis to Portland
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Find flight deals from St. Louis to Portland

Cheapest flights from St. Louis to Portland
Explore the most affordable flight options available from St. Louis to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This CheapOair deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:46 pmSTL - PDX
1 stop7h 29mFrontier
Wed 12/187:15 pmPDX - STL
1 stop13h 55mFrontier
Deal found 11/20$248
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/122:25 pmSTL - PDX
2 stops11h 04mDelta
Mon 12/1611:13 pmPDX - STL
1 stop8h 22mDelta
Deal found 11/20$266
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/134:31 pmSTL - PDX
1 stop6h 43mUnited Airlines
Sun 12/157:00 amPDX - STL
1 stop7h 38mUnited Airlines
Deal found 11/20$274
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/411:51 amSTL - PDX
1 stop7h 49mAmerican Airlines
Wed 12/115:00 amPDX - STL
1 stop6h 32mAmerican Airlines
Deal found 11/20$330
This Mytrip deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1712:15 pmSTL - PDX
3 stops27h 34mMultiple Airlines
Tue 12/247:48 pmPDX - STL
3 stops14h 22mMultiple Airlines
Deal found 11/19$362
This Alaska Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:00 amSTL - PDX
1 stop17h 56mAlaska Airlines
Wed 1/17:00 amPDX - STL
1 stop14h 59mAlaska Airlines
Deal found 11/19$369
This Southwest deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2110:45 pmSTL - PDX
1 stop11h 40mSouthwest
Fri 1/32:55 pmPDX - STL
2 stops8h 00mSouthwest
Deal found 11/20$481

Find flights from St. Louis to Portland within your budget

Customize your flight search to find flights from St. Louis to Portland 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 1/29

1:40 pm-9:50 pm

1 stop10h 10m

Portland

Wed 2/12

5:31 am-3:10 pm

1 stop7h 39m

$198

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 1/23

2:49 pm-8:46 pm

1 stop7h 57m

Portland

Mon 1/27

4:30 pm-1:53 pm

1 stop19h 23m

$226

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 2/18

5:00 pm-11:54 pm

1 stop8h 54m

Portland

Sun 2/23

6:05 am-4:45 pm

1 stop8h 40m

$238

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 1/2

10:09 pm-3:44 pm

1 stop19h 35m

Portland

Sun 1/5

12:45 pm-8:13 am

1 stop17h 28m

$248

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Fri 12/13

4:31 pm-9:14 pm

1 stop6h 43m

Portland

Sun 12/15

7:00 am-4:38 pm

1 stop7h 38m

$274

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 12/17

12:15 pm-1:49 pm

3 stops27h 34m

Portland

Tue 12/24

7:48 pm-12:10 pm

3 stops14h 22m

$362

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sat 12/21

10:45 pm-8:25 am

1 stop11h 40m

Portland

Fri 1/3

2:55 pm-12:55 am

2 stops8h 00m

$481

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 1/22

7:09 pm-12:07 am

1 stop6h 58m

$74

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 1/21

6:00 am-12:55 pm

1 stop8h 55m

$99

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sun 1/19

7:00 am-1:16 pm

1 stop8h 16m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 15 results
1
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Compare providers for flights from St. Louis to Portland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Portland in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Portland flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Portland flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Portland

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

Travel insights for flights from St. Louis to Portland

Get recent, data-driven insights about flights from St. Louis to Portland including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Portland. Price data was last updated on November 15, 2024.

Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to Portland (average of $268). Flying from St. Louis to Portland in July is currently the most expensive (average of $341). 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.

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

Find hourly flight availability from St. Louis to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

When flying from St. Louis to Portland, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 31% versus a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Portland. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their St. Louis to Portland flight should consider departing on Saturday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portland ranges from 0.7 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Portland when rainfall is around 0.7 in.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated November 20, 2024.
Read through reviews of airlines operating flights from St. Louis to Portland, such as American Airlines, Frontier and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

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

  • How popular is this St. Louis to Portland flight route?

    Within the past month, 1 users have taken a look at flights from Lambert-St Louis to Portland.

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

    Currently priced at $198, American Airlines will fly you from St. Louis to Portland and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and Delta - these airlines can fly you to your destination from $226 and $238, respectively. These flights start at 46% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $74. Delta flights start at $99 while deals on American Airlines start at $113 one-way.

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

    St. Louis to Portland flights have a layover in Salt Lake City most of the time.

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

    Salt Lake City travelers tend to visit Temple Square, Abravanel Hall, and Salt Lake Temple more than anywhere else. Temple Square, Abravanel Hall, and Salt Lake Temple can be accessed by traveling approximately 4.7 mi, 4.7 mi, and 4.8 mi, respectively from Salt Lake City. Those looking to explore during their layover in Salt Lake City can rent a car from Salt Lake City for about $52 per day.

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

    Flights departing from St. Louis and landing in Portland layover in Denver least frequently.

  • Can I find deals for flights from St. Louis to Portland that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Portland (average of $268). Flying from St. Louis to Portland in July is currently the most expensive (average of $341). 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.

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Top 7 airlines flying from St. Louis to Portland

Discover the top 7 airlines that operate flights from St. Louis to Portland. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$94Average$171FlexibilityNo cancel feeOn-time65%
FrontierCheapest$108Average$201FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$181Average$400FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$215Average$370FlexibilityNo cancel feeOn-time75%
DeltaCheapest$216Average$380FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$290Average$450FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$306Average$433FlexibilityNo cancel feeOn-time63%
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