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$75+ Cheap flights from Oregon to St. Louis (STL)

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STL
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Oregon to St. Louis

Keep the following information in mind while searching for Oregon to St. Louis flight deals. Data was last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$160
(CheapOair)

One-way from

$75
(Frontier)

Popular in

December

Cheapest in

January

Average price

$402
Provider with most accurate pricing for Portland-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Portland-Lambert-St Louis flights.
Search Deals
From Oregon to Lambert-St Louis
Search Deals
One-way flight from Oregon to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Oregon to St. Louis

Cheapest flights from Oregon to St. Louis
Explore the most affordable flight options available from Oregon to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/19. 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.
mar. 3/1810:06 amPDX - STL
1 stop21h 10mFrontier
jue. 3/206:38 pmSTL - PDX
1 stop16h 02mFrontier
Deal found 2/19$160
This Delta deal was found by Cheapflights users on 2/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/35:59 pmBOI - STL
1 stop5h 29mDelta
mié. 4/96:00 amSTL - BOI
1 stop7h 44mDelta
Deal found 2/19$227
This Delta deal was found by Cheapflights users on 2/20. 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.
mié. 4/25:40 amPDX - STL
1 stop5h 43mDelta
mar. 4/85:00 pmSTL - PDX
1 stop8h 44mDelta
Deal found 2/20$227
This United Airlines deal was found by Cheapflights users on 2/20. 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.
mar. 4/157:00 amPDX - STL
1 stop6h 47mUnited Airlines
vie. 5/26:11 pmSTL - PDX
1 stop8h 59mUnited Airlines
Deal found 2/20$228
This American Airlines deal was found by Cheapflights users on 2/20. 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.
vie. 4/182:58 pmPDX - STL
1 stop6h 35mAmerican Airlines
dom. 4/206:20 pmSTL - PDX
1 stop7h 42mAmerican Airlines
Deal found 2/20$272
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/143:02 pmPDX - STL
1 stop6h 57mAlaska Airlines
sáb. 4/196:44 amSTL - PDX
1 stop6h 08mAlaska Airlines
Deal found 2/20$286
This Delta deal was found by Cheapflights users on 2/20. 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.
mié. 4/25:45 amEUG - STL
1 stop5h 38mDelta
jue. 4/32:20 pmSTL - EUG
2 stops10h 34mDelta
Deal found 2/20$306
This Delta deal was found by Cheapflights users on 2/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/1211:17 amRDM - STL
2 stops9h 47mDelta
sáb. 4/197:40 amSTL - RDM
1 stop6h 28mDelta
Deal found 2/19$306
This Expedia deal was found by Cheapflights users on 2/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/261:33 pmPDX - STL
1 stop8h 26mMultiple Airlines
sáb. 3/17:04 pmSTL - PDX
1 stop7h 33mMultiple Airlines
Deal found 2/20$311
This American Airlines deal was found by Cheapflights users on 2/20. 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.
mié. 4/21:12 pmEUG - STL
1 stop7h 32mAmerican Airlines
vie. 4/47:33 amSTL - EUG
1 stop8h 48mAmerican Airlines
Deal found 2/20$317
This Southwest deal was found by Cheapflights users on 2/20. 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.
jue. 4/173:00 pmPDX - STL
1 stop7h 05mSouthwest
lun. 4/215:00 amSTL - PDX
2 stops9h 00mSouthwest
Deal found 2/20$327
This Southwest deal was found by Cheapflights users on 2/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/242:45 pmBOI - STL
2 stops8h 50mSouthwest
lun. 4/285:10 pmSTL - BOI
2 stops8h 40mSouthwest
Deal found 2/19$329

Find flights from Oregon to St. Louis within your budget

Customize your flight search to find flights from Oregon 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 2,558,603 searches. Data last updated febrero 20, 2025.

Fly from

Oregon

Fly to

St. Louis

Route

Depart

Return

Price

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

mar. 3/18

10:06 am-9:16 am

1 stop21h 10m

Lambert-St Louis

jue. 3/20

6:38 pm-8:40 am

1 stop16h 02m

$160

BoiseSt. Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

jue. 4/3

5:59 pm-12:28 am

1 stop5h 29m

Lambert-St Louis

mié. 4/9

6:00 am-12:44 pm

1 stop7h 44m

$227

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

mié. 4/2

5:40 am-1:23 pm

1 stop5h 43m

Lambert-St Louis

mar. 4/8

5:00 pm-11:44 pm

1 stop8h 44m

$227

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

mar. 4/15

7:00 am-3:47 pm

1 stop6h 47m

Lambert-St Louis

vie. 5/2

6:11 pm-1:10 am

1 stop8h 59m

$228

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

vie. 4/18

2:58 pm-11:33 pm

1 stop6h 35m

Lambert-St Louis

dom. 4/20

6:20 pm-12:02 am

1 stop7h 42m

$272

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

lun. 4/14

3:02 pm-11:59 pm

1 stop6h 57m

Lambert-St Louis

sáb. 4/19

6:44 am-10:52 am

1 stop6h 08m

$286

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

mié. 4/2

5:45 am-1:23 pm

1 stop5h 38m

Lambert-St Louis

vie. 4/4

7:40 am-3:15 pm

2 stops9h 35m

$306

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

sáb. 4/12

11:17 am-11:04 pm

2 stops9h 47m

Lambert-St Louis

sáb. 4/19

7:40 am-12:08 pm

1 stop6h 28m

$306

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

mié. 2/26

1:33 pm-11:59 pm

1 stop8h 26m

Lambert-St Louis

sáb. 3/1

7:04 pm-12:37 am

1 stop7h 33m

$311

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

mié. 4/2

1:12 pm-10:44 pm

1 stop7h 32m

Lambert-St Louis

vie. 4/4

7:33 am-2:21 pm

1 stop8h 48m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 49 results
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Best time to book a flight from Oregon to St. Louis

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

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

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

Currently, August is the cheapest month in which you can book a flight from Oregon to St. Louis (average of $311). Flying from Oregon to St. Louis in March is currently the most expensive (average of $356). 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 OR to STL?

Find hourly flight availability from Oregon to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

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

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 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 febrero 20, 2025.
Read through reviews of airlines operating flights from Oregon to St. Louis, such as Southwest, Alaska Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Oregon to St. Louis. 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 St. Louis from Oregon?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from Oregon.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $75. However, be on the lookout for offers from American Airlines and Spirit Airlines, as they are both options that can get you from Oregon to St. Louis for a low price.

  • What are the most popular routes from Oregon to St. Louis?

    While some choose either Eugene - Lambert-St Louis or Boise Air Term. Gowen Fld - Lambert-St Louis, Portland - Lambert-St Louis is the most popular route from Oregon to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oregon 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.

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

    Currently, August is the cheapest month in which you can book a flight from Oregon to St. Louis (average of $311). Flying from Oregon to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Oregon?

Book flights to Oregon if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Alton
Farmington
Chesterfield

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Alternative routes for Oregon to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Oregon to St. Louis

Discover the top 6 airlines that operate flights from Oregon 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 2,558,603 searches. Data last updated febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$111Average$205FlexibilityNo cancel feeOn-time62%
DeltaCheapest$192Average$412FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$198Average$439FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$228Average$506FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$254Average$556FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$355Average$542FlexibilityNo cancel feeOn-time63%
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