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$83+ Cheap flights from Washington 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STL
may. 5 — may. 121
lun. 5/5
lun. 5/12
1 adult, Economy
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Cheap flight deals from Washington to Missouri

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

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$208
(Frontier)

One-way from

$83
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$327

Good round-trip deal

$319 or less

Good one-way deal

$138 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Kansas City flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Kansas City flights.
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From Washington to Missouri
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One-way flight from Washington to Missouri
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($9 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 Washington to Missouri.
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Price to beat on a one-way flight from Washington to Missouri.
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Find flight deals from Washington to Missouri

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

This Frontier deal was found by Cheapflights users on 4/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/57:12 pmSEA - STL
1 stop12h 00mFrontier
sáb. 6/78:11 pmSTL - SEA
1 stop6h 23mFrontier
Deal found 4/29$208
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/21:10 amSEA - STL
1 stop6h 44mAmerican Airlines
dom. 6/87:45 amSTL - SEA
1 stop9h 02mAmerican Airlines
Deal found 4/29$223
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/112:12 pmPDX - STL
1 stop6h 33mUnited Airlines
lun. 6/164:32 pmSTL - PDX
1 stop8h 03mUnited Airlines
Deal found 4/29$227
This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/306:35 amPDX - STL
1 stop25h 34mFrontier
lun. 6/27:24 pmSTL - PDX
1 stop6h 55mFrontier
Deal found 4/29$228
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/56:04 pmSEA - STL
Nonstop4h 00mMultiple Airlines
sáb. 6/78:11 pmSTL - SEA
1 stop6h 23mMultiple Airlines
Deal found 4/29$243
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/135:55 amSEA - STL
1 stop9h 24mDelta
sáb. 6/217:15 amSTL - SEA
1 stop9h 30mDelta
Deal found 4/28$244
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
mar. 10/286:00 pmSEA - STL
Nonstop3h 56mAlaska Airlines
mar. 11/42:55 pmSTL - SEA
Nonstop4h 26mAlaska Airlines
Deal found 4/28$249
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/135:15 amSEA - STL
2 stops8h 32mUnited Airlines
mié. 5/145:20 amSTL - SEA
1 stop6h 27mUnited Airlines
Deal found 4/28$252
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/78:45 amSEA - STL
Nonstop3h 50mSouthwest
dom. 6/156:20 pmSTL - SEA
1 stop8h 35mSouthwest
Deal found 4/28$259
This CheapOair deal was found by Cheapflights users on 4/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/297:10 pmSEA - MCI
1 stop21h 54mFrontier
lun. 6/27:51 pmMCI - SEA
1 stop6h 43mFrontier
Deal found 4/28$261
This Mytrip deal was found by Cheapflights users on 4/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/276:00 amSEA - MCI
1 stop9h 45mSpirit Airlines
mar. 6/39:07 pmMCI - SEA
2 stops29h 03mSpirit Airlines
Deal found 4/28$263
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/296:04 pmSEA - STL
Nonstop4h 00mHawaiian Airlines
mié. 6/46:18 pmSTL - SEA
Nonstop4h 27mHawaiian Airlines
Deal found 4/28$263

Cheapflights Fare Finder

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

Fly from

Washington

Fly to

Missouri

Route

Depart

Return

Price

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

jue. 6/5

7:12 pm-9:12 am

1 stop12h 00m

Lambert-St Louis

sáb. 6/7

8:11 pm-12:34 am

1 stop6h 23m

$208

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

lun. 6/2

1:10 am-9:54 am

1 stop6h 44m

Lambert-St Louis

dom. 6/8

7:45 am-2:47 pm

1 stop9h 02m

$223

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

mar. 6/3

11:59 pm-8:59 am

1 stop7h 00m

Lambert-St Louis

vie. 6/6

5:29 pm-12:36 am

1 stop9h 07m

$227

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

vie. 5/16

6:20 am-9:59 am

1 stop25h 39m

Lambert-St Louis

sáb. 5/24

7:55 pm-12:17 am

1 stop6h 22m

$231

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

jue. 6/5

6:04 pm-12:04 am

Nonstop4h 00m

Lambert-St Louis

sáb. 6/7

8:11 pm-12:34 am

1 stop6h 23m

$243

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

vie. 6/13

5:55 am-5:19 pm

1 stop9h 24m

Lambert-St Louis

sáb. 6/21

7:15 am-2:45 pm

1 stop9h 30m

$244

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

mar. 5/13

5:15 am-3:47 pm

2 stops8h 32m

Lambert-St Louis

mié. 5/14

5:20 am-9:47 am

1 stop6h 27m

$252

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

sáb. 6/7

8:45 am-2:35 pm

Nonstop3h 50m

Lambert-St Louis

dom. 6/15

6:20 pm-12:55 am

1 stop8h 35m

$259

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

jue. 5/29

7:10 pm-7:04 pm

1 stop21h 54m

Kansas City

lun. 6/2

7:51 pm-12:34 am

1 stop6h 43m

$261

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

mar. 5/27

6:00 am-5:45 pm

1 stop9h 45m

Kansas City

mar. 6/3

9:07 pm-12:10 am

2 stops29h 03m

$263

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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

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

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

Currently, August is the cheapest month in which you can book a flight from State of Washington to Missouri (average of $311). Flying from State of Washington to Missouri in March is currently the most expensive (average of $356). 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 WA to MO?

Find hourly flight availability from Washington 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 abril 30, 2025.

When flying from State of Washington to Missouri, 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 State of Washington to Missouri

Explore weekly flight availability from Washington to Missouri. 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 abril 30, 2025.

The most flights from USWA to USMO are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Missouri by month

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

In terms of precipitation, rainfall in Missouri ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Missouri when rainfall is around 1.1 in.

Temperature in Missouri by month

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

If weather is an important factor for your trip to Missouri, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

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 abril 30, 2025.
Read through reviews of airlines operating flights from Washington to Missouri, such as Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,406 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

    This flight path from Washington to Missouri was viewed by 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from State of Washington to Missouri one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $83. Frontier flights start at $96 while deals on Delta start at $114 one-way.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from State of Washington to Missouri (average of $311). Flying from State of Washington to Missouri in March is currently the most expensive (average of $356). 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 Washington to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Washington to Missouri

Discover the top 8 airlines that operate flights from Washington 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 abril 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$223FlexibilityNo cancel feeOn-time62%
DeltaCheapest$141Average$413FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$186Average$530FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$188Average$470FlexibilityNo cancel feeOn-time63%
Spirit AirlinesCheapest$198Average$377FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$213Average$524FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$216Average$505FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$217Average$412FlexibilityNo cancel feeOn-time85%

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