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$53+ Cheap flights from Oregon to Missouri

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — STL
feb. 7 — feb. 141
sáb. 2/7
sáb. 2/14
1 adult, Economy
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Cheap flight deals from Oregon to Missouri

Keep the following information in mind while searching for Oregon to Missouri flight deals. Data was last updated enero 8, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$105
(Alaska Airlines)

One-way from

$53
(Alaska Airlines)

Popular in

March

Cheapest in

November

Average price

$330

Good round-trip deal

$252 or less

Good one-way deal

$114 or less
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.
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From Oregon to Missouri
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One-way flight from Oregon to Missouri
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Highest demand for flights based on searches. 8% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Oregon to Missouri.
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Price to beat on a one-way flight from Oregon to Missouri.
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Find flight deals from Oregon to Missouri

Cheapest flights from Oregon to Missouri
Explore the most affordable flight options available from Oregon to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 8, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/7. 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.
mié. 4/2210:45 amPDX - MCI
Nonstop3h 32mAlaska Airlines
mar. 4/285:11 pmMCI - PDX
Nonstop3h 52mAlaska Airlines
Deal found 1/7$105
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 1/279:39 amPDX - MCI
Nonstop3h 26mAlaska Airlines
jue. 1/293:59 pmMCI - PDX
Nonstop3h 58mAlaska Airlines
Deal found 1/6$112
This Alaska Airlines deal was found by Cheapflights users on 1/7. 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.
vie. 3/1310:53 amPDX - MCI
Nonstop3h 29mAlaska Airlines
vie. 3/205:41 pmMCI - PDX
Nonstop3h 51mAlaska Airlines
Deal found 1/7$119
This Alaska Airlines deal was found by Cheapflights users on 1/7. 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.
vie. 3/610:53 amPDX - MCI
Nonstop3h 29mAlaska Airlines
mar. 3/105:16 pmMCI - PDX
Nonstop4h 04mAlaska Airlines
Deal found 1/7$126
This Travelocity deal was found by Cheapflights users on 1/7. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/2810:45 amPDX - MCI
Nonstop3h 32mAlaska Airlines
sáb. 5/27:00 amMCI - PDX
1 stop5h 56mAlaska Airlines
Deal found 1/7$129
This Alaska Airlines deal was found by Cheapflights users on 1/7. 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. 2/2310:53 amPDX - MCI
Nonstop3h 29mAlaska Airlines
vie. 2/275:16 pmMCI - PDX
Nonstop4h 04mAlaska Airlines
Deal found 1/7$133
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
dom. 3/812:07 pmBOI - STL
1 stop20h 42mFrontier
mié. 3/118:12 pmSTL - BOI
1 stop16h 00mFrontier
Deal found 1/8$138
This Southwest deal was found by Cheapflights users on 1/8. 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.
vie. 4/104:55 pmPDX - MCI
1 stop5h 55mSouthwest
lun. 4/133:10 pmMCI - PDX
1 stop8h 30mSouthwest
Deal found 1/8$141
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
dom. 3/812:04 pmPDX - STL
1 stop19h 45mFrontier
mié. 3/118:12 pmSTL - PDX
1 stop16h 57mFrontier
Deal found 1/7$141
This Alaska Airlines deal was found by Cheapflights users on 1/7. 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.
dom. 2/19:39 amPDX - MCI
Nonstop3h 26mAlaska Airlines
vie. 2/62:45 pmMCI - PDX
1 stop8h 02mAlaska Airlines
Deal found 1/7$143
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
lun. 3/912:52 pmPDX - STL
1 stop28h 19mFrontier
mié. 3/118:12 pmSTL - PDX
1 stop16h 57mFrontier
Deal found 1/7$151
This Kiwi.com deal was found by Cheapflights users on 1/7. 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.
vie. 3/612:04 pmPDX - STL
1 stop19h 45mFrontier
mié. 3/118:12 pmSTL - PDX
1 stop16h 57mFrontier
Deal found 1/7$156

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oregon to Missouri 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 enero 8, 2026.
Use the filters below to find and compare flights from Oregon to Missouri that are best for you.

Fly from

Oregon

Fly to

Missouri

Route

Depart

Return

Price

PortlandKansas City

PDX - MCI

PDXMCI

Portland

mar. 1/27

9:39 am-3:05 pm

Nonstop3h 26m

Kansas City

jue. 1/29

3:59 pm-5:57 pm

Nonstop3h 58m

$112

PortlandKansas City

PDX - MCI

PDXMCI

Portland

vie. 3/13

10:53 am-4:22 pm

Nonstop3h 29m

Kansas City

vie. 3/20

5:41 pm-7:32 pm

Nonstop3h 51m

$119

PortlandKansas City

PDX - MCI

PDXMCI

Portland

lun. 2/23

10:53 am-4:22 pm

Nonstop3h 29m

Kansas City

jue. 2/26

5:16 pm-7:20 pm

Nonstop4h 04m

$119

PortlandKansas City

PDX - MCI

PDXMCI

Portland

lun. 2/23

10:53 am-4:22 pm

Nonstop3h 29m

Kansas City

vie. 2/27

5:16 pm-7:20 pm

Nonstop4h 04m

$133

BoiseSt. Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

dom. 3/8

12:07 pm-9:49 am

1 stop20h 42m

Lambert-St Louis

mié. 3/11

8:12 pm-11:12 am

1 stop16h 00m

$138

PortlandKansas City

PDX - MCI

PDXMCI

Portland

dom. 2/1

9:39 am-3:05 pm

Nonstop3h 26m

Kansas City

vie. 2/6

2:45 pm-8:47 pm

1 stop8h 02m

$143

PortlandKansas City

PDX - MCI

PDXMCI

Portland

vie. 3/6

8:30 am-9:29 pm

1 stop10h 59m

Kansas City

mar. 3/10

5:16 pm-7:20 pm

Nonstop4h 04m

$150

PortlandKansas City

PDX - MCI

PDXMCI

Portland

lun. 2/23

3:59 pm-11:50 pm

1 stop5h 51m

Kansas City

vie. 2/27

7:55 pm-11:53 pm

1 stop5h 58m

$157

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

mié. 3/4

6:40 am-3:28 pm

1 stop6h 48m

Lambert-St Louis

lun. 3/9

4:13 pm-11:09 pm

1 stop8h 56m

$177

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

sáb. 2/28

1:32 pm-9:38 pm

1 stop6h 06m

Lambert-St Louis

mar. 3/10

12:28 pm-5:39 pm

1 stop7h 11m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 60 results
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Best time to book a flight from Oregon to Missouri

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

Cheapflights Insights

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

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

Currently, October is the cheapest month in which you can book a flight from Oregon to Missouri (average of $133). Flying from Oregon to Missouri in June is currently the most expensive (average of $233). 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 MO?

Find hourly flight availability from Oregon to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 8, 2026.

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

How much does it cost to fly round-trip from Oregon to Missouri?

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. 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 Missouri. Reviews last updated enero 8, 2026.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Oregon to Missouri. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
11,661 reviews
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Southwest
8.0
Very good
4,250 reviews
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,025 reviews
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,139 reviews
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.2
Good
11,095 reviews
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

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

  • How long is the flight from Oregon to Missouri?

    There are many flights that can get you from Oregon to Missouri in 3h 26m. Fly via Alaska Airlines, Frontier, or American Airlines to get the fastest option. The distance between Oregon and Missouri is about 1477 mi. This flight may include one or multiple stops.

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

    $61 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Hawaiian Airlines and Alaska Airlines, with prices starting from $74 and $98, respectively.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Oregon to Missouri (average of $133). Flying from Oregon to Missouri in June is currently the most expensive (average of $233). 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 Oregon to Missouri

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

Discover the top 7 airlines that operate flights from Oregon to Missouri. 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 enero 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$96Average$226FlexibilityNo cancel feeOn-time62%
DeltaCheapest$154Average$390FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$172Average$439FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$193Average$354FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$199Average$494FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$226Average$418FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$226Average$455FlexibilityNo cancel feeOn-time71%

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