HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$75+ Cheap flights from Missouri to Washington

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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missouri to Washington 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 Washington

Keep the following information in mind while searching for Missouri to Washington flight deals. Data was last updated September 15, 2025.

Round-trip from

$201
(Kiwi.com)

One-way from

$75
(Southwest)

Popular in

July

Cheapest in

January

Average price

$313

Good round-trip deal

$288 or less

Good one-way deal

$164 or less
From Missouri to Washington
Search Deals
One-way flight from Missouri to Washington
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Missouri to Washington.
Search Deals
Price to beat on a one-way flight from Missouri to Washington.
Search Deals

Find flight deals from Missouri to Washington

Cheapest flights from Missouri to Washington
Explore the most affordable flight options available from Missouri to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sun 10/128:38 pmMCI - PDX
2 stops26h 09mFrontier
Fri 10/2412:43 pmPDX - MCI
1 stop27h 12mFrontier
Deal found 9/14$201
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/87:02 pmMCI - PDX
1 stop18h 36mFrontier
Wed 10/2212:43 pmPDX - MCI
1 stop29h 10mFrontier
Deal found 9/14$202
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/257:02 pmMCI - PDX
2 stops17h 49mFrontier
Thu 10/3012:52 pmPDX - MCI
1 stop28h 41mFrontier
Deal found 9/14$203
This CheapOair deal was found by Cheapflights users on 9/13. 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.
Sun 10/268:38 pmMCI - PDX
1 stop17h 10mFrontier
Sun 11/23:26 pmPDX - MCI
1 stop26h 07mFrontier
Deal found 9/13$206
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 10/235:57 pmMCI - PDX
Nonstop3h 53mAlaska Airlines
Tue 10/2810:30 amPDX - MCI
Nonstop3h 24mAlaska Airlines
Deal found 9/13$207
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/227:02 pmMCI - PDX
1 stop18h 36mFrontier
Thu 10/3012:52 pmPDX - MCI
2 stops19h 25mFrontier
Deal found 9/14$208
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/185:57 pmMCI - PDX
Nonstop3h 53mHawaiian Airlines
Sat 10/252:30 pmPDX - MCI
1 stop7h 29mHawaiian Airlines
Deal found 9/14$209
This Frontier deal was found by Cheapflights users on 9/14. 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.
Wed 10/157:02 pmMCI - PDX
2 stops15h 21mFrontier
Thu 10/2312:43 pmPDX - MCI
1 stop5h 10mFrontier
Deal found 9/14$212
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/238:38 pmMCI - PDX
1 stop17h 10mFrontier
Thu 10/3012:52 pmPDX - MCI
2 stops19h 25mFrontier
Deal found 9/13$214
This CheapOair deal was found by Cheapflights users on 9/13. 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.
Mon 10/138:38 pmMCI - PDX
1 stop17h 10mFrontier
Mon 10/2012:43 pmPDX - MCI
1 stop5h 10mFrontier
Deal found 9/13$216
This Delta deal was found by Cheapflights users on 9/15. 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 10/146:15 pmMCI - PDX
1 stop7h 28mDelta
Tue 10/213:19 pmPDX - MCI
1 stop5h 42mDelta
Deal found 9/15$217
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/67:55 pmSTL - SEA
1 stop18h 12mFrontier
Fri 10/108:43 pmSEA - STL
2 stops34h 39mFrontier
Deal found 9/15$217

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Washington 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 September 15, 2025.
Use the filters below to find and compare flights from Missouri to Washington that are best for you.

Fly from

Missouri

Fly to

Washington

Route

Depart

Return

Price

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Fri 1/16

5:55 pm-7:48 pm

Nonstop3h 53m

Portland

Tue 1/20

10:55 am-4:20 pm

Nonstop3h 25m

$207

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Wed 10/29

6:40 am-12:20 pm

1 stop7h 40m

Portland

Mon 11/3

12:40 pm-11:27 pm

1 stop8h 47m

$207

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Thu 11/13

4:49 pm-6:47 pm

Nonstop3h 58m

Portland

Wed 11/19

10:30 am-3:54 pm

Nonstop3h 24m

$207

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Wed 11/5

4:49 pm-6:47 pm

Nonstop3h 58m

Portland

Sun 11/9

10:30 am-3:54 pm

Nonstop3h 24m

$207

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Tue 11/25

8:10 pm-12:30 am

1 stop6h 20m

Portland

Tue 12/2

5:00 am-3:50 pm

1 stop8h 50m

$217

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Thu 11/6

4:49 pm-6:47 pm

Nonstop3h 58m

Portland

Sun 11/9

10:30 am-3:54 pm

Nonstop3h 24m

$217

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Sat 10/18

5:45 am-9:03 am

1 stop5h 18m

Portland

Tue 10/21

9:58 am-5:20 pm

1 stop5h 22m

$217

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Tue 10/14

5:45 am-9:03 am

1 stop5h 18m

Portland

Tue 10/21

1:30 pm-11:01 pm

1 stop7h 31m

$217

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Tue 10/14

5:45 am-9:03 am

1 stop5h 18m

Portland

Sat 10/18

12:25 pm-10:10 pm

1 stop7h 45m

$217

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Wed 10/15

5:57 pm-7:50 pm

Nonstop3h 53m

Portland

Wed 10/22

1:25 pm-11:59 pm

1 stop8h 34m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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

Best time to book a flight from Missouri to Washington

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

What is the cheapest month to book a flight from Missouri to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Missouri to State of Washington (average of $238). Flying from Missouri to State of Washington in June is currently the most expensive (average of $387). 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 WA?

Find hourly flight availability from Missouri to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

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

Weekly flight availability from Missouri to State of Washington

Explore weekly flight availability from Missouri to Washington. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 15, 2025.

The most flights from USMO to USWA are scheduled on a Monday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost to fly round-trip from Missouri to State of Washington?

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated September 15, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Missouri to Washington to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Missouri to Washington. 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 State of Washington flight route?

    Flights from Missouri to Washington have been viewed 53 times in the past calendar month.

  • How long is the flight from Missouri to State of Washington?

    Airlines like Alaska Airlines, Delta, and Hawaiian Airlines fly from Missouri to State of Washington in about 3h 53m. The time it takes to get you to your destination can typically vary by up to 3h 47m. Missouri and State of Washington are separated by a distance of 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 State of Washington one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $79. Users have also found prices from $81 and $89 on Southwest and Delta, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Missouri to Washington 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 State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Missouri to State of Washington (average of $238). Flying from Missouri to State of Washington in June is currently the most expensive (average of $387). 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 Washington

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

Top 8 airlines flying from Missouri to Washington

Discover the top 8 airlines that operate flights from Missouri to Washington. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$94Average$370FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$111Average$255FlexibilityNo cancel feeOn-time65%
FrontierCheapest$118Average$226FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$149Average$379FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$179Average$419FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$188Average$468FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$474FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$226Average$501FlexibilityNo cancel feeOn-time75%

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.