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$87+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEA
abr. 27 — may. 41
dom. 4/27
dom. 5/4
1 adult, Economy
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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 abril 22, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$188
(Frontier)

One-way from

$87
(Cheapflightsfares)

Popular in

July

Cheapest in

January

Average price

$267

Good round-trip deal

$371 or less

Good one-way deal

$197 or less
Provider with most accurate pricing for Kansas City-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Kansas City-Seattle/Tacoma Intl flights.
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From Missouri to Washington
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One-way flight from Missouri to Washington
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Highest demand for flights based on searches. 18% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Missouri to Washington.
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Price to beat on a one-way flight from Missouri to Washington.
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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 abril 22, 2025.

This Frontier deal was found by Cheapflights users on 4/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/307:51 pmMCI - SEA
1 stop6h 46mFrontier
mié. 6/46:25 amSEA - MCI
1 stop10h 46mFrontier
Deal found 4/22$188
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/176:59 pmSTL - SEA
1 stop7h 10mDelta
lun. 11/1712:40 amSEA - STL
1 stop6h 04mDelta
Deal found 4/22$189
This Frontier deal was found by Cheapflights users on 4/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/307:24 pmSTL - SEA
1 stop7h 13mFrontier
jue. 6/57:12 pmSEA - STL
1 stop12h 00mFrontier
Deal found 4/21$198
This United Airlines deal was found by Cheapflights users on 4/22. 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.
mar. 6/245:20 amSTL - PDX
1 stop6h 19mUnited Airlines
lun. 6/307:35 pmPDX - STL
1 stop7h 19mUnited Airlines
Deal found 4/22$227
This CheapOair deal was found by Cheapflights users on 4/22. 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.
jue. 5/292:25 pmSTL - PDX
1 stop24h 40mFrontier
dom. 6/16:35 amPDX - STL
1 stop24h 37mFrontier
Deal found 4/22$228
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/26:53 pmSTL - SEA
1 stop7h 51mMultiple Airlines
lun. 5/126:03 pmSEA - STL
Nonstop3h 56mMultiple Airlines
Deal found 4/21$229
This Mytrip deal was found by Cheapflights users on 4/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/216:45 pmMCI - SEA
1 stop7h 25mSpirit Airlines
mié. 5/286:00 amSEA - MCI
2 stops12h 12mSpirit Airlines
Deal found 4/21$233
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/165:00 amSTL - SEA
1 stop7h 15mAmerican Airlines
lun. 5/1911:58 pmSEA - STL
1 stop7h 01mAmerican Airlines
Deal found 4/21$233
This Southwest deal was found by Cheapflights users on 4/21. 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.
lun. 10/65:15 amSTL - SEA
1 stop7h 45mSouthwest
jue. 10/95:15 amSEA - STL
1 stop7h 40mSouthwest
Deal found 4/21$234
This CheapOair deal was found by Cheapflights users on 4/22. 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.
lun. 6/27:51 pmMCI - SEA
1 stop6h 43mMultiple Airlines
jue. 6/56:00 amSEA - MCI
1 stop11h 03mMultiple Airlines
Deal found 4/22$237
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/136:30 amSTL - SEA
Nonstop4h 24mAlaska Airlines
mar. 5/206:04 pmSEA - STL
Nonstop4h 00mAlaska Airlines
Deal found 4/22$237
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/108:15 pmSTL - PDX
1 stop6h 23mMultiple Airlines
sáb. 5/172:30 pmPDX - STL
1 stop7h 34mMultiple Airlines
Deal found 4/21$247

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 abril 22, 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 CitySeattle

MCI - SEA

MCISEA

Kansas City

vie. 5/30

7:51 pm-12:37 am

1 stop6h 46m

Seattle/Tacoma Intl

mié. 6/4

6:25 am-7:11 pm

1 stop10h 46m

$188

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

mar. 5/13

7:19 pm-11:59 pm

1 stop6h 40m

Seattle/Tacoma Intl

mié. 5/21

5:30 am-1:34 pm

1 stop6h 04m

$189

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

vie. 5/30

7:24 pm-12:37 am

1 stop7h 13m

Seattle/Tacoma Intl

jue. 6/5

7:12 pm-9:12 am

1 stop12h 00m

$198

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

mar. 6/24

5:20 am-9:39 am

1 stop6h 19m

Portland

lun. 6/30

7:35 pm-4:54 am

1 stop7h 19m

$227

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

jue. 5/29

2:25 pm-1:05 pm

1 stop24h 40m

Portland

dom. 6/1

6:35 am-9:12 am

1 stop24h 37m

$228

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

vie. 5/2

6:53 pm-12:44 am

1 stop7h 51m

Seattle/Tacoma Intl

lun. 5/12

6:03 pm-11:59 pm

Nonstop3h 56m

$229

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

mié. 5/21

6:45 pm-12:10 am

1 stop7h 25m

Seattle/Tacoma Intl

mié. 5/28

6:00 am-8:12 pm

2 stops12h 12m

$233

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

vie. 5/16

5:00 am-10:15 am

1 stop7h 15m

Seattle/Tacoma Intl

lun. 5/19

11:58 pm-8:59 am

1 stop7h 01m

$233

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

mar. 5/13

6:30 am-8:54 am

Nonstop4h 24m

Seattle/Tacoma Intl

mar. 5/20

6:04 pm-12:04 am

Nonstop4h 00m

$237

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

lun. 6/2

7:51 pm-12:34 am

1 stop6h 43m

Seattle/Tacoma Intl

jue. 6/5

6:00 am-7:03 pm

1 stop11h 03m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

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, 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 July is currently the most expensive (average of $411). 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 abril 22, 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.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 abril 22, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Missouri to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,906 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,286 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,392 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,683 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 41 times in the past calendar month.

  • 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 $87. Users have also found prices from $95 and $99 on Delta and Spirit Airlines, 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 July is currently the most expensive (average of $411). 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 abril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$111Average$188FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$133Average$237FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$138Average$379FlexibilityNo cancel feeOn-time85%
DeltaCheapest$143Average$390FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$188Average$452FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$199Average$488FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$548FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$216Average$527FlexibilityNo cancel feeOn-time75%

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