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$68+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap 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 December 23, 2025.

This Southwest deal was found by Cheapflights users on 12/20. 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.
Sun 12/219:00 pmMCI - PDX
1 stop5h 25mSouthwest
Mon 1/53:15 pmPDX - MCI
1 stop6h 00mSouthwest
Deal found 12/20$354
This Southwest deal was found by Cheapflights users on 12/22. 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.
Wed 12/311:55 pmMCI - PDX
1 stop10h 05mSouthwest
Mon 1/53:15 pmPDX - MCI
1 stop6h 00mSouthwest
Deal found 12/22$369
This Southwest deal was found by Cheapflights users on 12/23. 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.
Wed 12/241:50 pmMCI - PDX
1 stop6h 25mSouthwest
Wed 12/318:00 amPDX - MCI
1 stop5h 35mSouthwest
Deal found 12/23$378
This Southwest deal was found by Cheapflights users on 12/22. 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.
Wed 12/311:55 pmMCI - PDX
1 stop10h 05mSouthwest
Sun 1/43:00 pmPDX - MCI
1 stop7h 55mSouthwest
Deal found 12/22$388
This Kiwi.com deal was found by Cheapflights users on 12/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:45 pmMCI - PDX
2 stops18h 39mFrontier
Sun 1/412:47 pmPDX - MCI
1 stop29h 03mFrontier
Deal found 12/22$389
This Southwest deal was found by Cheapflights users on 12/22. 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.
Wed 12/311:55 pmMCI - PDX
1 stop10h 05mSouthwest
Fri 1/29:00 pmPDX - MCI
1 stop9h 55mSouthwest
Deal found 12/22$394
This United Airlines deal was found by Cheapflights users on 12/21. 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 12/255:45 amMCI - PDX
1 stop6h 16mUnited Airlines
Sat 12/2711:59 pmPDX - MCI
1 stop8h 37mUnited Airlines
Deal found 12/21$395
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Mon 12/296:00 amSTL - PDX
1 stop9h 20mUnited Airlines
Thu 1/12:45 pmPDX - STL
1 stop5h 37mUnited Airlines
Deal found 12/22$412
This CheapOair deal was found by Cheapflights users on 12/22. 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 12/318:45 pmMCI - PDX
1 stop16h 58mFrontier
Sat 1/312:37 pmPDX - MCI
1 stop5h 14mFrontier
Deal found 12/22$413
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Tue 12/239:10 amSGF - PDX
1 stop6h 25mUnited Airlines
Sat 1/245:00 amPDX - SGF
1 stop5h 45mUnited Airlines
Deal found 12/21$414
This United Airlines deal was found by Cheapflights users on 12/22. 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 12/2612:44 pmSTL - PDX
1 stop11h 55mUnited Airlines
Thu 1/17:30 amPDX - STL
1 stop7h 14mUnited Airlines
Deal found 12/22$421
This Southwest deal was found by Cheapflights users on 12/21. 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.
Mon 12/296:10 pmMCI - PDX
1 stop8h 20mSouthwest
Wed 12/312:15 pmPDX - MCI
1 stop5h 45mSouthwest
Deal found 12/21$427

Find flight deals from Missouri to Oregon

Keep the following information in mind while searching for Missouri to Oregon flight deals. Data was last updated December 23, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$177
(Alaska Airlines)

One-way from

$68
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$403

Good round-trip deal

$262 or less

Good one-way deal

$153 or less
Provider with most accurate pricing for Lambert-St Louis-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-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. 1% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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

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 December 23, 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

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Tue 1/20

3:59 pm-5:57 pm

Nonstop3h 58m

Portland

Tue 1/27

9:39 am-3:05 pm

Nonstop3h 26m

$177

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Fri 1/23

2:45 pm-11:01 pm

1 stop9h 16m

Boise Air Term. Gowen Fld

Mon 1/26

12:07 pm-7:51 pm

1 stop6h 44m

$189

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Wed 1/28

1:30 pm-6:00 pm

1 stop6h 30m

Portland

Sat 1/31

6:00 am-4:00 pm

1 stop8h 00m

$197

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Sun 4/5

5:50 pm-7:41 pm

Nonstop3h 51m

Portland

Sun 4/12

11:30 am-4:56 pm

Nonstop3h 26m

$197

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Tue 1/20

6:25 pm-10:15 pm

1 stop5h 50m

Portland

Tue 1/27

6:00 am-4:30 pm

2 stops8h 30m

$202

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Thu 1/15

2:45 pm-8:47 pm

1 stop8h 02m

Portland

Mon 1/19

9:39 am-3:05 pm

Nonstop3h 26m

$207

Kansas CityEugene

MCI - EUG

MCIEUG

Kansas City

Thu 1/15

2:45 pm-9:30 pm

1 stop8h 45m

Eugene

Tue 1/20

9:00 am-1:50 pm

1 stop26h 50m

$226

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Sat 2/28

2:59 pm-8:49 am

1 stop19h 50m

Portland

Tue 3/3

8:30 am-1:55 pm

1 stop27h 25m

$226

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Wed 2/18

2:49 pm-10:40 pm

1 stop8h 51m

Boise Air Term. Gowen Fld

Wed 2/25

6:00 pm-1:55 pm

1 stop18h 55m

$226

Kansas CityBoise

MCI - BOI

MCIBOI

Kansas City

Sat 2/28

2:59 pm-11:40 am

1 stop21h 41m

Boise Air Term. Gowen Fld

Wed 3/4

1:00 pm-1:55 pm

1 stop23h 55m

$226

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 60 results
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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, February is the cheapest month in which you can book a flight from Missouri to Oregon (average of $110). Flying from Missouri to Oregon in July is currently the most expensive (average of $204). 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 December 23, 2025.

A simple way to save on the total cost of your ticket is to fly from Missouri to Oregon in the evening. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Missouri to Oregon?

Use this chart to determine the cheapest time to fly round-trip from Missouri to Oregon. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Missouri to Oregon flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 23, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Missouri to Oregon by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,512 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.
Alaska Airlines
8.0
Very good
11,512 reviews
Alaska Airlines
8.0
Very good
11,512 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.
Southwest
8.0
Very good
4,253 reviews
Alaska Airlines
8.0
Very good
11,512 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.
Delta
7.9
Good
8,014 reviews
Alaska Airlines
8.0
Very good
11,512 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.
United Airlines
7.4
Good
9,105 reviews
Alaska Airlines
8.0
Very good
11,512 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.
American Airlines
7.2
Good
11,054 reviews
Alaska Airlines
8.0
Very good
11,512 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.

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.

  • How long is the flight from Missouri to Oregon?

    Departing from Missouri to Oregon will take you 3h 58m. Airlines will cover a distance of 1477 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, February is the cheapest month in which you can book a flight from Missouri to Oregon (average of $110). Flying from Missouri to Oregon in July is currently the most expensive (average of $204). 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

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Alternative routes for Missouri 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 Missouri to Oregon

Discover the top 7 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$110Average$216FlexibilityNo cancel feeOn-time62%
DeltaCheapest$153Average$404FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$188Average$442FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$189Average$472FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$207Average$449FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$218Average$417FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$236Average$532FlexibilityNo cancel feeOn-time69%

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