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$55+ Cheap flights from St. Louis (STL) to Oregon

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
Jan 11 — Jan 181
Sat 1/11
Sat 1/18
1 adult, Economy
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Cheap flight deals from St. Louis to Oregon

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Oregon (USOR). 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 January 6, 2025.

Round-trip from

$114
(Mytrip)

One-way from

$55
(Frontier)
From Lambert-St Louis to Oregon
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One-way flight from Lambert-St Louis to Oregon
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Find flight deals from St. Louis to Oregon

Cheapest flights from St. Louis to Oregon
Explore the most affordable flight options available from St. Louis to Oregon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 6, 2025.

This Mytrip deal was found by Cheapflights users on 1/5. 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.
Sat 1/257:09 pmSTL - PDX
1 stop6h 58mFrontier
Tue 1/287:35 amPDX - STL
1 stop23h 41mFrontier
Deal found 1/5$114
This Expedia deal was found by Cheapflights users on 1/5. 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.
Sat 2/156:54 pmSTL - PDX
1 stop7h 43mMultiple Airlines
Mon 2/175:45 amPDX - STL
1 stop6h 40mMultiple Airlines
Deal found 1/5$173
This Alaska Airlines deal was found by Cheapflights users on 1/4. 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.
Tue 9/167:00 amSTL - PDX
1 stop8h 46mAlaska Airlines
Tue 9/234:00 pmPDX - STL
1 stop5h 56mAlaska Airlines
Deal found 1/4$226
This Delta deal was found by Cheapflights users on 1/5. 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.
Wed 2/125:00 pmSTL - PDX
1 stop8h 51mDelta
Thu 2/2012:59 amPDX - STL
1 stop8h 00mDelta
Deal found 1/5$227
This American Airlines deal was found by Cheapflights users on 1/5. 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.
Tue 4/15:10 amSTL - PDX
1 stop9h 54mAmerican Airlines
Sat 4/511:55 pmPDX - STL
1 stop7h 40mAmerican Airlines
Deal found 1/5$273
This Delta deal was found by Cheapflights users on 1/6. 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.
Wed 2/57:40 amSTL - EUG
1 stop6h 30mDelta
Tue 2/115:50 amEUG - STL
1 stop5h 53mDelta
Deal found 1/6$297
This United Airlines deal was found by Cheapflights users on 1/5. 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.
Thu 3/134:29 pmSTL - PDX
1 stop8h 46mUnited Airlines
Tue 3/185:00 amPDX - STL
1 stop5h 43mUnited Airlines
Deal found 1/5$302
This Alaska Airlines deal was found by Cheapflights users on 1/5. 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.
Sun 4/276:30 amSTL - BOI
1 stop8h 17mAlaska Airlines
Tue 5/62:41 pmBOI - STL
1 stop8h 18mAlaska Airlines
Deal found 1/5$310
This Delta deal was found by Cheapflights users on 1/5. 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.
Sun 2/27:40 amSTL - MFR
1 stop6h 30mDelta
Sat 2/85:00 amMFR - STL
1 stop6h 18mDelta
Deal found 1/5$311
This Delta deal was found by Cheapflights users on 1/5. 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.
Sat 2/87:40 amSTL - BOI
1 stop5h 40mDelta
Wed 2/125:30 amBOI - STL
1 stop8h 20mDelta
Deal found 1/5$311
This Alaska Airlines deal was found by Cheapflights users on 1/5. 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.
Thu 3/67:00 amSTL - MFR
1 stop10h 11mAlaska Airlines
Tue 3/115:47 amMFR - STL
1 stop6h 38mAlaska Airlines
Deal found 1/5$314
This Delta deal was found by Cheapflights users on 1/5. 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.
Fri 2/216:59 pmSTL - RDM
1 stop6h 54mDelta
Tue 2/2512:42 pmRDM - STL
1 stop6h 51mDelta
Deal found 1/5$315

Find flights from St. Louis to Oregon within your budget

Customize your flight search to find flights from St. Louis to Oregon 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 January 6, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sat 1/25

7:09 pm-12:07 am

1 stop6h 58m

Portland

Tue 1/28

7:35 am-9:16 am

1 stop23h 41m

$114

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sat 2/15

6:54 pm-12:37 am

1 stop7h 43m

Portland

Mon 2/17

5:45 am-2:25 pm

1 stop6h 40m

$173

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 2/12

5:00 pm-11:51 pm

1 stop8h 51m

Portland

Thu 2/20

12:59 am-10:59 am

1 stop8h 00m

$227

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 2/19

7:00 am-12:33 pm

1 stop7h 33m

Portland

Wed 2/26

3:00 pm-11:59 pm

1 stop6h 59m

$265

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 4/1

5:10 am-1:04 pm

1 stop9h 54m

Portland

Sat 4/5

11:55 pm-9:35 am

1 stop7h 40m

$273

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Wed 2/5

7:40 am-12:10 pm

1 stop6h 30m

Eugene

Tue 2/11

5:50 am-1:43 pm

1 stop5h 53m

$297

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 3/13

4:29 pm-11:15 pm

1 stop8h 46m

Portland

Tue 3/18

5:00 am-12:43 pm

1 stop5h 43m

$302

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Sun 4/27

6:30 am-1:47 pm

1 stop8h 17m

Boise Air Term. Gowen Fld

Tue 5/6

2:41 pm-11:59 pm

1 stop8h 18m

$310

St. LouisMedford

STL - MFR

STLMFR

Lambert-St Louis

Sun 2/2

7:40 am-12:10 pm

1 stop6h 30m

Medford

Sat 2/8

5:00 am-1:18 pm

1 stop6h 18m

$311

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Sat 2/8

7:40 am-12:20 pm

1 stop5h 40m

Boise Air Term. Gowen Fld

Wed 2/12

5:30 am-2:50 pm

1 stop8h 20m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Showing 1-10 of 36 results
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Best time to book a flight from St. Louis to Oregon

Have a flexible travel schedule? Discover the best time to fly to Oregon 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 Oregon

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

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to Oregon (average of $277). Flying from St. Louis to Oregon in March is currently the most expensive (average of $376). 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 OR?

Find hourly flight availability from St. Louis to Oregon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 6, 2025.

When flying from St. Louis to Oregon, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Oregon by month

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

In terms of precipitation, rainfall in Oregon 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 Oregon when rainfall is around 0.7 in.

Temperature in Oregon by month

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

If weather is an important factor for your trip to Oregon, 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 Oregon

Get insights into the airlines that provide service to Oregon. 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 Oregon. Reviews last updated January 6, 2025.
Read through reviews of airlines operating flights from St. Louis to Oregon, such as Frontier, Delta and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,663 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,663 reviews
Southwest
8.1
Very good
4,663 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,616 reviews
Southwest
8.1
Very good
4,663 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,513 reviews
Southwest
8.1
Very good
4,663 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,942 reviews
Southwest
8.1
Very good
4,663 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,663 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Oregon. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    The Lambert-St Louis to Oregon flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $55. However, be on the lookout for offers from Alaska Airlines and Delta, as they are both options that can get you from St. Louis to Oregon for a low price.

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

    While some choose either Lambert-St Louis - Eugene or Lambert-St Louis - Bend/Redmond, Lambert-St Louis - Portland is the most popular route from St. Louis to Oregon.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Oregon 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 Oregon?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Oregon (average of $277). Flying from St. Louis to Oregon in March is currently the most expensive (average of $376). 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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Alternative routes for St. Louis to Oregon

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from St. Louis to Oregon

Discover the top 7 airlines that operate flights from St. Louis to Oregon. 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 January 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$94Average$171FlexibilityNo cancel feeOn-time65%
FrontierCheapest$108Average$195FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$178Average$491FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$215Average$500FlexibilityNo cancel feeOn-time75%
DeltaCheapest$216Average$461FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$532FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$306Average$437FlexibilityNo cancel feeOn-time63%
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