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$63+ 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — SEA
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap 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 December 16, 2025.

This CheapOair deal was found by Cheapflights users on 12/16. 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.
Fri 12/1910:10 pmSTL - SEA
1 stop15h 21mFrontier
Thu 1/1512:19 pmSEA - STL
1 stop28h 13mFrontier
Deal found 12/16$268
This CheapOair deal was found by Cheapflights users on 12/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:43 pmSTL - SEA
1 stop18h 47mFrontier
Thu 1/11:25 pmSEA - STL
1 stop18h 37mFrontier
Deal found 12/15$305
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Sun 12/2110:10 pmSTL - SEA
1 stop14h 01mFrontier
Mon 12/296:33 pmSEA - STL
1 stop24h 52mFrontier
Deal found 12/16$339
This Delta deal was found by Cheapflights users on 12/16. 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.
Wed 12/246:05 amSTL - PDX
1 stop8h 55mDelta
Wed 12/312:11 pmPDX - STL
1 stop6h 05mDelta
Deal found 12/16$344
This CheapOair deal was found by Cheapflights users on 12/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:10 pmSTL - SEA
1 stop17h 41mFrontier
Sun 1/42:54 pmSEA - STL
1 stop17h 08mFrontier
Deal found 12/15$348
This Southwest deal was found by Cheapflights users on 12/15. 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 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
Thu 1/18:00 amPDX - MCI
1 stop7h 10mSouthwest
Deal found 12/15$349
This Delta deal was found by Cheapflights users on 12/15. 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.
Mon 12/222:35 pmMCI - PDX
1 stop5h 39mDelta
Fri 12/266:15 amPDX - MCI
1 stop9h 04mDelta
Deal found 12/15$353
This Southwest deal was found by Cheapflights users on 12/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/171:50 pmMCI - PDX
1 stop6h 25mSouthwest
Wed 12/242:15 pmPDX - MCI
1 stop5h 45mSouthwest
Deal found 12/15$356
This Southwest deal was found by Cheapflights users on 12/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:10 pmMCI - PDX
1 stop8h 20mSouthwest
Fri 12/268:55 pmPDX - MCI
1 stop12h 10mSouthwest
Deal found 12/15$358
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 12/228:45 pmMCI - SEA
2 stops19h 09mMultiple Airlines
Fri 1/99:02 pmSEA - MCI
1 stop24h 31mMultiple Airlines
Deal found 12/15$358
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/213:00 pmMCI - PDX
1 stop9h 59mUnited Airlines
Thu 12/2512:54 pmPDX - MCI
1 stop8h 21mUnited Airlines
Deal found 12/15$361
This CheapOair deal was found by Cheapflights users on 12/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:10 pmSTL - SEA
1 stop14h 01mFrontier
Fri 12/266:33 pmSEA - STL
1 stop24h 52mFrontier
Deal found 12/15$364

Find flight deals from Missouri to Washington

Keep the following information in mind while searching for Missouri to Washington flight deals. Data was last updated December 16, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$138
(Kiwi.com)

One-way from

$63
(Trip.com)

Popular in

July

Cheapest in

October

Average price

$354

Good round-trip deal

$303 or less

Good one-way deal

$157 or less
Provider with most accurate pricing for Lambert-St Louis-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Seattle/Tacoma Intl flights.
Search Deals
From Missouri to Washington
Search Deals
One-way flight from Missouri to Washington
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($60 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 Washington.
Search Deals
Price to beat on a one-way flight from Missouri to Washington.
Search Deals

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 December 16, 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

Tue 1/13

3:59 pm-5:57 pm

Nonstop3h 58m

Portland

Sat 1/24

9:10 am-1:43 pm

1 stop26h 33m

$167

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Tue 1/13

8:00 am-1:41 pm

1 stop7h 41m

Portland

Sat 1/24

10:15 pm-10:01 am

1 stop9h 46m

$176

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Wed 3/11

6:04 pm-12:01 am

1 stop7h 57m

Seattle/Tacoma Intl

Mon 3/16

1:30 pm-12:18 am

1 stop8h 48m

$177

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Tue 1/6

4:56 pm-7:02 pm

Nonstop4h 06m

Portland

Sun 1/11

9:39 am-3:05 pm

Nonstop3h 26m

$177

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Tue 1/13

3:59 pm-5:57 pm

Nonstop3h 58m

Portland

Tue 1/20

9:39 am-3:05 pm

Nonstop3h 26m

$177

Kansas CityPortland

MCI - PDX

MCIPDX

Kansas City

Thu 2/12

5:16 pm-7:20 pm

Nonstop4h 04m

Portland

Mon 2/16

10:53 am-4:22 pm

Nonstop3h 29m

$197

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Sat 1/17

7:00 am-9:06 am

Nonstop4h 06m

Seattle/Tacoma Intl

Thu 1/22

5:55 pm-11:23 pm

Nonstop3h 28m

$198

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Fri 1/9

7:00 am-9:06 am

Nonstop4h 06m

Seattle/Tacoma Intl

Fri 1/16

5:55 pm-11:23 pm

Nonstop3h 28m

$199

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Sat 1/10

7:00 am-9:06 am

Nonstop4h 06m

Seattle/Tacoma Intl

Sat 1/17

5:55 pm-11:23 pm

Nonstop3h 28m

$199

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Wed 1/21

2:45 pm-4:51 pm

Nonstop4h 06m

Seattle/Tacoma Intl

Tue 1/27

8:15 am-1:50 pm

Nonstop3h 35m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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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, April is the cheapest month in which you can book a flight from Missouri to State of Washington (average of $121). Flying from Missouri to State of Washington in July is currently the most expensive (average of $188). 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 December 16, 2025.

It’s typically best to fly out from Missouri to State of Washington in the evening. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Missouri to State of Washington?

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

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

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 December 16, 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
11,469 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
11,469 reviews
Alaska Airlines
8.0
Very good
11,469 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,469 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Hawaiian Airlines
7.8
Good
2,819 reviews
Alaska Airlines
8.0
Very good
11,469 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,469 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
American Airlines
7.2
Good
11,049 reviews
Alaska Airlines
8.0
Very good
11,469 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

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 84 times in the past calendar month.

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

    Airlines like Alaska Airlines, American Airlines, and Delta fly from Missouri to State of Washington in about 3h 58m. The time it takes to get you to your destination can typically vary by up to 3h 59m. 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.

  • 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, April is the cheapest month in which you can book a flight from Missouri to State of Washington (average of $121). Flying from Missouri to State of Washington in July is currently the most expensive (average of $188). 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 Washington

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$94Average$378FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$111Average$225FlexibilityNo cancel feeOn-time65%
FrontierCheapest$119Average$237FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$149Average$377FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$176Average$420FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$188Average$475FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$193Average$471FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$203Average$492FlexibilityNo cancel feeOn-time75%

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