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$100+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$198
(Hawaiian Airlines)

One-way from

$100
(American Airlines)

Popular in

May

Cheapest in

January

Average price

$423

Good round-trip deal

$318 or less

Good one-way deal

$164 or less
From Washington to Missouri
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One-way flight from Washington to Missouri
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Highest demand for flights based on searches. 10% potential increase in price ($41 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 June 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 June 12, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 8/311:40 pmGEG - MCI
1 stop8h 19mHawaiian Airlines
Sat 9/64:55 pmMCI - GEG
1 stop8h 16mHawaiian Airlines
Deal found 6/10$198
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 9/205:06 amGEG - MCI
1 stop8h 55mAlaska Airlines
Mon 9/227:59 pmMCI - GEG
1 stop6h 00mAlaska Airlines
Deal found 6/10$199
This Delta deal was found by Cheapflights users on 6/12. 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 9/2412:40 amSEA - STL
1 stop6h 04mDelta
Sun 9/286:59 pmSTL - SEA
1 stop7h 10mDelta
Deal found 6/12$229
This Southwest deal was found by Cheapflights users on 6/11. 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.
Sun 8/310:40 pmSEA - STL
1 stop7h 05mSouthwest
Fri 8/84:40 pmSTL - SEA
1 stop9h 35mSouthwest
Deal found 6/11$233
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 8/265:15 amGEG - MCI
1 stop5h 25mUnited Airlines
Tue 8/265:15 pmMCI - GEG
1 stop5h 48mUnited Airlines
Deal found 6/11$239
This CheapOair deal was found by Cheapflights users on 6/10. 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 10/16:05 amPDX - STL
1 stop25h 02mFrontier
Tue 10/77:52 pmSTL - PDX
1 stop28h 47mFrontier
Deal found 6/10$244
This CheapOair deal was found by Cheapflights users on 6/10. 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.
Thu 11/63:45 pmSEA - STL
1 stop19h 49mFrontier
Sun 11/92:19 pmSTL - SEA
1 stop26h 41mFrontier
Deal found 6/10$248
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 7/316:06 pmSEA - STL
Nonstop3h 53mAlaska Airlines
Tue 8/53:24 pmSTL - SEA
Nonstop4h 26mAlaska Airlines
Deal found 6/10$249
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Tue 7/812:12 pmPDX - MCI
2 stops34h 00mSpirit Airlines
Tue 7/152:32 pmMCI - PDX
1 stop25h 43mSpirit Airlines
Deal found 6/10$251
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 8/136:34 amSEA - STL
1 stop8h 22mAmerican Airlines
Mon 8/183:53 pmSTL - SEA
1 stop8h 07mAmerican Airlines
Deal found 6/12$253
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Thu 7/312:20 amSEA - STL
1 stop8h 20mUnited Airlines
Tue 7/85:15 amSTL - SEA
1 stop6h 44mUnited Airlines
Deal found 6/12$258
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 8/412:59 amPDX - MCI
1 stop6h 54mAmerican Airlines
Tue 8/123:00 pmMCI - PDX
1 stop8h 15mAmerican Airlines
Deal found 6/10$259

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 June 12, 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

SpokaneKansas City

GEG - MCI

GEGMCI

Spokane

Sun 8/31

1:40 pm-11:59 pm

1 stop8h 19m

Kansas City

Sat 9/6

4:55 pm-11:11 pm

1 stop8h 16m

$198

SpokaneKansas City

GEG - MCI

GEGMCI

Spokane

Sat 9/20

5:06 am-4:01 pm

1 stop8h 55m

Kansas City

Mon 9/22

7:59 pm-11:59 pm

1 stop6h 00m

$199

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Wed 9/24

12:40 am-8:44 am

1 stop6h 04m

Lambert-St Louis

Sun 9/28

6:59 pm-12:09 am

1 stop7h 10m

$229

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Sun 8/3

10:40 pm-7:45 am

1 stop7h 05m

Lambert-St Louis

Fri 8/8

4:40 pm-12:15 am

1 stop9h 35m

$233

SpokaneKansas City

GEG - MCI

GEGMCI

Spokane

Tue 8/26

5:15 am-12:40 pm

1 stop5h 25m

Kansas City

Tue 8/26

5:15 pm-9:03 pm

1 stop5h 48m

$239

PortlandSt. Louis

PDX - STL

PDXSTL

Portland

Wed 10/1

6:05 am-9:07 am

1 stop25h 02m

Lambert-St Louis

Tue 10/7

7:52 pm-10:39 pm

1 stop28h 47m

$244

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 11/6

3:45 pm-1:34 pm

1 stop19h 49m

Lambert-St Louis

Sun 11/9

2:19 pm-3:00 pm

1 stop26h 41m

$248

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Thu 7/31

6:06 pm-11:59 pm

Nonstop3h 53m

Lambert-St Louis

Tue 8/5

3:24 pm-5:50 pm

Nonstop4h 26m

$249

PortlandKansas City

PDX - MCI

PDXMCI

Portland

Tue 7/8

12:12 pm-12:12 am

2 stops34h 00m

Kansas City

Tue 7/15

2:32 pm-2:15 pm

1 stop25h 43m

$251

SeattleSt. Louis

SEA - STL

SEASTL

Seattle/Tacoma Intl

Wed 8/13

6:34 am-4:56 pm

1 stop8h 22m

Lambert-St Louis

Mon 8/18

3:53 pm-10:00 pm

1 stop8h 07m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 June 12, 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 June 12, 2025.

The most flights from USWA to USMO are scheduled on a Thursday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 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 June 12, 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
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

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
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

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 American Airlines, which is currently one of the cheapest options available, starting at $100. Alaska Airlines flights start at $105 while deals on Southwest start at $110 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.

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$230FlexibilityNo cancel feeOn-time62%
DeltaCheapest$141Average$406FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$171Average$311FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$186Average$522FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$188Average$457FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$204Average$503FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$216Average$496FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$218Average$412FlexibilityNo cancel feeOn-time85%

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