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$321+ Cheap flights from Walla Walla to St. Louis (ALW - STL)

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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
ALW — STL
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Walla Walla to St. Louis

Cheapest flights from Walla Walla to St. Louis
Explore the most affordable flight options available from Walla Walla to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:00 amALW - STL
1 stop16h 59mAlaska Airlines
Fri 1/27:00 amSTL - ALW
1 stop19h 18mAlaska Airlines
Deal found 12/16$915
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:23 pmALW - STL
1 stop7h 36mAlaska Airlines
Fri 1/27:00 amSTL - ALW
1 stop19h 18mAlaska Airlines
Deal found 12/16$1,003

Find flight deals from Walla Walla to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Walla Walla (ALW) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 16, 2025.

Round-trip from

$339
(Alaska Airlines)

One-way from

$321
(Alaska Airlines)
From Walla Walla to Lambert-St Louis
Search Deals
One-way flight from Walla Walla to Lambert-St Louis
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Walla Walla to St. Louis 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 Walla Walla to St. Louis that are best for you.

Fly from

Walla Walla

Fly to

St. Louis

Route

Depart

Return

Price

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Sat 1/24

3:40 pm-1:54 pm

1 stop20h 14m

Lambert-St Louis

Wed 1/28

2:50 pm-12:13 am

1 stop11h 23m

$394

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Tue 12/30

5:00 am-11:59 pm

1 stop16h 59m

Lambert-St Louis

Fri 1/2

7:00 am-12:18 am

1 stop19h 18m

$915

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Mon 12/29

2:23 pm-11:59 pm

1 stop7h 36m

Lambert-St Louis

Fri 1/2

7:00 am-12:18 am

1 stop19h 18m

$1,003

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Wed 1/28

5:00 am-1:54 pm

1 stop6h 54m

$321

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Wed 1/28

3:40 pm-8:53 am

3 stops15h 13m

$838

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Best time to book a flight from Walla Walla to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Walla Walla 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 Walla Walla to St. Louis

What is the cheapest month to book a flight from Walla Walla to St. Louis?

Currently, September is the cheapest month in which you can book a flight from Walla Walla to St. Louis (average of $193). Flying from Walla Walla to St. Louis in July is currently the most expensive (average of $482). 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.

Related info for your journey

Find useful and relevant information for your journey from Walla Walla to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Walla Walla to St. Louis?

    Departing from Walla Walla to St. Louis will take you 20h 14m. Airlines will cover a distance of 1501 mi.

  • Can I find deals for flights from Walla Walla to St. Louis that include hotel bookings?

    Yes. In addition to deals on Walla Walla to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Walla Walla to St. Louis?

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

  • Can I find deals for business class flights from Walla Walla to St. Louis?

    Yes. Cheapflights offers flight deals from Walla Walla to St. Louis 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 Walla Walla to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Walla Walla to St. Louis (average of $193). Flying from Walla Walla to St. Louis in July is currently the most expensive (average of $482). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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