HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Oregon

$88+ Cheap flights from Missouri 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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missouri to Oregon with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Missouri to Oregon

Keep the following information in mind while searching for Missouri to Oregon flight deals. Data was last updated April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$187
(CheapOair)

One-way from

$88
(Cheapflightsfares)

Popular in

March

Cheapest in

February

Average price

$346

Good round-trip deal

$367 or less

Good one-way deal

$203 or less
Provider with most accurate pricing for Kansas City-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kansas City-Portland flights.
Search Deals
From Missouri to Oregon
Search Deals
One-way flight from Missouri to Oregon
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Missouri to Oregon.
Search Deals
Price to beat on a one-way flight from Missouri to Oregon.
Search Deals

Find flight deals from Missouri to Oregon

Cheapest flights from Missouri to Oregon
Explore the most affordable flight options available from Missouri to Oregon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This CheapOair deal was found by Cheapflights users on 4/17. 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 5/148:15 pmSTL - BOI
1 stop18h 22mFrontier
Sun 5/182:27 pmBOI - STL
1 stop17h 42mFrontier
Deal found 4/17$187
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Fri 5/166:00 amSTL - PDX
1 stop6h 24mAmerican Airlines
Fri 5/231:55 pmPDX - STL
1 stop6h 50mAmerican Airlines
Deal found 4/16$227
This Expedia deal was found by Cheapflights users on 4/16. 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 5/108:15 pmSTL - PDX
1 stop6h 23mMultiple Airlines
Mon 5/191:25 pmPDX - STL
1 stop8h 39mMultiple Airlines
Deal found 4/16$228
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Wed 11/121:30 pmSTL - PDX
2 stops8h 35mUnited Airlines
Sat 11/159:10 amPDX - STL
1 stop5h 16mUnited Airlines
Deal found 4/16$232
This CheapOair deal was found by Cheapflights users on 4/16. 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.
Sat 5/247:55 pmSTL - PDX
1 stop6h 22mFrontier
Fri 5/306:35 amPDX - STL
1 stop25h 34mFrontier
Deal found 4/16$241
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Sat 9/65:58 amSGF - PDX
1 stop6h 32mAmerican Airlines
Sat 9/132:16 pmPDX - SGF
1 stop7h 39mAmerican Airlines
Deal found 4/16$251
This Delta deal was found by Cheapflights users on 4/15. 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.
Tue 5/272:15 pmSTL - PDX
1 stop9h 46mDelta
Sat 5/315:30 amPDX - STL
1 stop6h 04mDelta
Deal found 4/15$253
This Southwest deal was found by Cheapflights users on 4/16. 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.
Fri 7/257:15 pmSTL - PDX
1 stop7h 50mSouthwest
Sun 7/279:15 pmPDX - STL
1 stop9h 15mSouthwest
Deal found 4/16$263
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 9/307:36 pmSTL - PDX
1 stop6h 23mAlaska Airlines
Fri 10/1010:40 amPDX - STL
1 stop11h 16mAlaska Airlines
Deal found 4/15$267
This Delta deal was found by Cheapflights users on 4/16. 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 8/306:40 amMCI - BOI
1 stop6h 33mDelta
Tue 9/95:40 amBOI - MCI
1 stop8h 19mDelta
Deal found 4/16$267
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 8/306:14 amMCI - BOI
1 stop7h 22mAmerican Airlines
Sun 9/71:41 pmBOI - MCI
1 stop7h 39mAmerican Airlines
Deal found 4/17$276
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 9/135:35 amSTL - BOI
1 stop7h 59mAmerican Airlines
Sat 9/201:40 pmBOI - STL
1 stop9h 07mAmerican Airlines
Deal found 4/17$287

Cheapflights Fare Finder

Customize your flight search to find flights from Missouri 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 April 17, 2025.
Use the filters below to find and compare flights from Missouri to Oregon that are best for you.

Fly from

Missouri

Fly to

Oregon

Route

Depart

Return

Price

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Wed 5/14

8:15 pm-1:37 pm

1 stop18h 22m

Boise Air Term. Gowen Fld

Sun 5/18

2:27 pm-9:09 am

1 stop17h 42m

$187

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Fri 5/16

6:00 am-10:24 am

1 stop6h 24m

Portland

Mon 5/19

3:24 pm-11:51 pm

1 stop6h 27m

$227

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sat 5/10

8:15 pm-12:38 am

1 stop6h 23m

Portland

Mon 5/19

1:25 pm-12:04 am

1 stop8h 39m

$228

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sat 5/24

7:55 pm-12:17 am

1 stop6h 22m

Portland

Fri 5/30

6:35 am-10:09 am

1 stop25h 34m

$241

SpringfieldPortland

SGF - PDX

SGFPDX

Springfield-Branson

Sat 9/6

5:58 am-10:30 am

1 stop6h 32m

Portland

Sat 9/13

2:16 pm-11:55 pm

1 stop7h 39m

$251

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 5/27

2:15 pm-10:01 pm

1 stop9h 46m

Portland

Sat 5/31

5:30 am-1:34 pm

1 stop6h 04m

$253

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Wed 5/7

5:35 pm-12:22 am

1 stop7h 47m

Boise Air Term. Gowen Fld

Sun 5/11

5:40 pm-12:20 am

1 stop5h 40m

$276

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

Wed 5/28

5:20 am-9:46 am

1 stop5h 26m

Boise Air Term. Gowen Fld

Fri 6/6

7:07 pm-5:03 am

1 stop8h 56m

$287

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Thu 5/8

3:59 pm-5:46 pm

Nonstop3h 47m

Portland

Sun 5/11

6:20 am-7:51 pm

1 stop11h 31m

$293

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Wed 5/14

9:07 pm-4:45 pm

2 stops21h 38m

Portland

Fri 5/30

5:40 pm-8:12 pm

2 stops24h 32m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Missouri to Oregon

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

Cheapflights Insights

Everything you need to know about your flight from Missouri to Oregon

What is the cheapest month to book a flight from Missouri to Oregon?

Currently, November is the cheapest month in which you can book a flight from Missouri to Oregon (average of $277). Flying from Missouri to Oregon in March is currently the most expensive (average of $369). 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 MO to OR?

Find hourly flight availability from Missouri 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 April 17, 2025.

When flying from Missouri 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 April 17, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Missouri to Oregon. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,380 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Missouri to Oregon. 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 Missouri to Oregon flight route?

    Flights from Missouri to Oregon have been viewed 1 times in the past calendar month.

  • What are the cheapest airlines to fly from Missouri to Oregon one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $88. Spirit Airlines flights start at $112 while deals on Delta start at $114 one-way.

  • Can I find deals for flights from Missouri to Oregon that include hotel bookings?

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

  • How can I find direct flights from Missouri to Oregon?

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

  • Can I find deals for business class flights from Missouri to Oregon?

    Yes. Cheapflights offers flight deals from Missouri 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 Missouri to Oregon?

    Currently, November is the cheapest month in which you can book a flight from Missouri to Oregon (average of $277). Flying from Missouri to Oregon in March is currently the most expensive (average of $369). 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 Missouri to Oregon

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Fort Lauderdale flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Los Angeles flights
Newark to Orlando flights
John F Kennedy Intl to Miami flights
Newark to Los Angeles flights
LaGuardia to Miami flights
Newark to Miami flights
San Francisco to John F Kennedy Intl flights
Los Angeles to John F Kennedy Intl flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Fort Lauderdale flights
Dallas/Fort Worth to LaGuardia flights
Dallas/Fort Worth to John F Kennedy Intl flights
Dallas/Fort Worth to Seattle flights
John F Kennedy Intl to Las Vegas flights
O'Hare Intl to Las Vegas flights
Newark to Las Vegas flights
John F Kennedy Intl to San Francisco flights
LaGuardia to Orlando flights
John F Kennedy Intl to O'Hare Intl flights
Los Angeles to Newark flights
LaGuardia to Dallas/Fort Worth flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to Orlando flights
LaGuardia to Atlanta flights
Los Angeles to Boston flights
Dallas/Fort Worth to O'Hare Intl flights
Los Angeles to Honolulu flights
Newark to O'Hare Intl flights
Newark to Seattle flights
O'Hare Intl to Dallas/Fort Worth flights
O'Hare Intl to LaGuardia flights
Dallas/Fort Worth to Las Vegas flights
San Francisco to Newark flights
John F Kennedy Intl to Seattle flights
Newark to Tampa flights
Dallas/Fort Worth to Newark flights
O'Hare Intl to John F Kennedy Intl flights
Los Angeles to Seattle flights
John F Kennedy Intl to West Palm Beach flights
Newark to Dallas/Fort Worth flights
Seattle to Newark flights
Seattle to Los Angeles flights
Los Angeles to LaGuardia flights
LaGuardia to Los Angeles flights
Newark to San Francisco flights
Seattle to Las Vegas flights
Fort Lauderdale to Newark flights
LaGuardia to Hobby flights

Top 8 airlines flying from Missouri to Oregon

Discover the top 8 airlines that operate flights from Missouri 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$94Average$203FlexibilityNo cancel feeOn-time65%
FrontierCheapest$108Average$192FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$169Average$505FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$173Average$387FlexibilityNo cancel feeOn-time85%
DeltaCheapest$196Average$451FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$215Average$501FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$242Average$542FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$248Average$447FlexibilityNo cancel feeOn-time63%

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.