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$63+ Cheap flights from Missouri to Portland (PDX)

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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Missouri to Portland

Keep the following information in mind while searching for Missouri to Portland flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$123
(Kiwi.com)

One-way from

$63
(Trip.com)

Popular in

March

Cheapest in

September

Average price

$376

Good round-trip deal

$217 or less

Good one-way deal

$153 or less
Provider with most accurate pricing for Lambert-St Louis-Portland flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Portland flights.
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From Missouri to Portland
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One-way flight from Missouri to Portland
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Highest demand for flights based on searches. 5% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Missouri to Portland.
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Price to beat on a one-way flight from Missouri to Portland.
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Find flight deals from Missouri to Portland

Cheapest flights from Missouri to Portland
Explore the most affordable flight options available from Missouri to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sat 12/67:43 pmSTL - PDX
1 stop18h 13mFrontier
Fri 12/1212:55 pmPDX - STL
1 stop19h 19mFrontier
Deal found 10/29$123
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/37:43 pmSTL - PDX
1 stop18h 13mFrontier
Fri 12/512:55 pmPDX - STL
1 stop19h 19mFrontier
Deal found 10/28$124
This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:16 pmSTL - PDX
1 stop22h 18mFrontier
Thu 12/1112:51 pmPDX - STL
1 stop19h 23mFrontier
Deal found 10/28$151
This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:45 pmSTL - PDX
1 stop18h 11mFrontier
Sat 11/1512:52 pmPDX - STL
1 stop18h 15mFrontier
Deal found 10/28$177
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sat 12/207:43 pmSTL - PDX
1 stop18h 00mFrontier
Sun 1/412:47 pmPDX - STL
1 stop19h 15mFrontier
Deal found 10/27$179
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sat 12/207:43 pmSTL - PDX
1 stop18h 00mFrontier
Thu 1/112:47 pmPDX - STL
1 stop19h 15mFrontier
Deal found 10/27$185
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Thu 12/41:34 pmMCI - PDX
Nonstop4h 06mAlaska Airlines
Wed 12/107:16 amPDX - MCI
Nonstop3h 24mAlaska Airlines
Deal found 10/29$187
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Mon 12/227:43 pmSTL - PDX
1 stop18h 00mFrontier
Thu 1/112:47 pmPDX - STL
1 stop19h 15mFrontier
Deal found 10/27$190
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Thu 12/46:55 amMCI - PDX
1 stop5h 55mHawaiian Airlines
Wed 12/107:16 amPDX - MCI
Nonstop3h 24mHawaiian Airlines
Deal found 10/29$192
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:45 pmSTL - PDX
1 stop18h 11mFrontier
Mon 11/173:26 pmPDX - STL
1 stop15h 41mFrontier
Deal found 10/28$194
This Booking.com deal was found by Cheapflights users on 10/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:28 pmMCI - PDX
1 stop17h 28mFrontier
Mon 11/103:26 pmPDX - MCI
1 stop23h 53mFrontier
Deal found 10/27$194
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 12/31:34 pmMCI - PDX
Nonstop4h 06mAlaska Airlines
Fri 12/51:34 pmPDX - MCI
1 stop8h 24mAlaska Airlines
Deal found 10/28$197

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Portland 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 October 30, 2025.
Use the filters below to find and compare flights from Missouri to Portland that are best for you.

Fly from

Missouri

Fly to

Portland

Route

Depart

Return

Price

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Tue 2/3

6:25 am-11:45 am

1 stop7h 20m

Portland

Tue 2/10

11:05 am-7:05 pm

1 stop6h 00m

$197

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Wed 12/3

1:34 pm-3:40 pm

Nonstop4h 06m

Portland

Fri 12/5

1:34 pm-11:58 pm

1 stop8h 24m

$197

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Sat 1/17

10:58 am-8:17 pm

1 stop11h 19m

Portland

Sun 1/25

2:18 pm-11:12 pm

1 stop6h 54m

$206

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Wed 12/3

2:20 pm-6:14 pm

1 stop5h 54m

Portland

Fri 12/5

2:23 pm-11:22 pm

1 stop6h 59m

$207

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Sun 1/18

6:25 am-11:45 am

1 stop7h 20m

Portland

Sun 1/25

6:45 am-4:40 pm

1 stop7h 55m

$217

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Wed 11/26

4:57 pm-7:01 pm

Nonstop4h 04m

Portland

Wed 12/3

7:16 am-12:40 pm

Nonstop3h 24m

$217

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Thu 12/25

5:50 am-10:50 am

1 stop7h 00m

Portland

Mon 12/29

9:00 pm-10:30 am

1 stop11h 30m

$222

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Wed 11/12

2:20 pm-6:27 pm

1 stop6h 07m

Portland

Tue 11/18

12:35 am-9:52 am

1 stop7h 17m

$223

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Wed 12/31

4:56 pm-7:02 pm

Nonstop4h 06m

Portland

Sun 1/4

10:41 am-4:02 pm

Nonstop3h 21m

$227

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Fri 12/19

4:56 pm-7:02 pm

Nonstop4h 06m

Portland

Thu 1/8

7:28 am-12:54 pm

Nonstop3h 26m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 53 results
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Best time to book a flight from Missouri to Portland

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

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

Currently, February is the cheapest month in which you can book a flight from Missouri to Portland (average of $116). Flying from Missouri to Portland in March is currently the most expensive (average of $227). 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 PDX?

Find hourly flight availability from Missouri to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 23% on flights from Missouri to Portland by exploring options for tickets in the evening.

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

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

Travelers seeking maximum savings on their Missouri to Portland 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.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Portland. 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 Portland from Missouri?

    If you book a flight to Portland from Missouri, you will be flying to Portland, which is the city’s only airport. Portland (PDX) is located 6.0 mi from the center of Portland.

  • How popular is this Missouri to Portland flight route?

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

  • How long is the flight from Missouri to Portland?

    Airlines like Southwest, Alaska Airlines, and American Airlines fly from Missouri to Portland in about 4h 06m. The time it takes to get you to your destination can typically vary by up to 7h 13m. The distance between Missouri and Portland is about 1477 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Missouri to Portland are Alaska Airlines ($89), Delta ($125), and United Airlines ($125).

  • What are the most popular routes from Missouri to Portland?

    While some choose either Lambert-St Louis - Portland or Springfield-Branson - Portland, Kansas City - Portland is the most popular route from Missouri to Portland.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Missouri to Portland (average of $116). Flying from Missouri to Portland in March is currently the most expensive (average of $227). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Clackamas
Lincoln City
Lake Oswego
Beaverton
McMinnville
Hillsboro
Cannon Beach
Long Beach
Longview
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Pacific City
Gresham
Tillamook
Troutdale

Browse thousands of different options on Cheapflights for your next trip

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Top 8 airlines flying from Missouri to Portland

Discover the top 8 airlines that operate flights from Missouri to Portland. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$110Average$215FlexibilityNo cancel feeOn-time62%
DeltaCheapest$164Average$330FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$185Average$257FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$198Average$375FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$204Average$436FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$207Average$449FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$226Average$393FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$234Average$437FlexibilityNo cancel feeOn-time69%

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