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Cheap flights from Walla Walla to St. Louis from $387

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Walla Walla to St. Louis departing on 5/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Walla Walla to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
2:48 pm - 11:59 pm
ALW
-
STL
7h 11m
1 stop
Alaska Airlines Logo
4:46 pm - 11:48 pm
STL
-
ALW
9h 02m
1 stop
$387Alaska Airlines
Sat, May 2 - Wed, May 6
Alaska Airlines Logo
2:48 pm - 11:59 pm
ALW
-
STL
7h 11m
1 stop
Alaska Airlines Logo
4:46 pm - 11:48 pm
STL
-
ALW
9h 02m
1 stop
$388Alaska Airlines
Sat, May 2 - Wed, May 6
Alaska Airlines Logo
5:00 am - 3:50 pm
ALW
-
STL
8h 50m
1 stop
Alaska Airlines Logo
4:46 pm - 11:48 pm
STL
-
ALW
9h 02m
1 stop
$392Alaska Airlines
Sat, May 2 - Wed, May 6
Alaska Airlines Logo
2:48 pm - 11:59 pm
ALW
-
STL
7h 11m
1 stop
Alaska Airlines Logo
4:46 pm - 11:48 pm
STL
-
ALW
9h 02m
1 stop
$448Alaska Airlines
Sat, May 2 - Wed, May 6
Alaska Airlines Logo
2:48 pm - 11:59 pm
ALW
-
STL
7h 11m
1 stop
Alaska Airlines Logo
5:20 am - 2:08 pm
STL
-
ALW
10h 48m
2 stops
$492Alaska Airlines
Sat, May 2 - Wed, May 6
Alaska Airlines Logo
2:48 pm - 11:59 pm
ALW
-
STL
7h 11m
1 stop
Alaska Airlines Logo
5:20 am - 2:08 pm
STL
-
ALW
10h 48m
2 stops
$513Alaska Airlines
Sat, May 2 - Wed, May 6
Alaska Airlines Logo
2:48 pm - 11:59 pm
ALW
-
STL
7h 11m
1 stop
Alaska Airlines Logo
5:20 am - 2:08 pm
STL
-
ALW
10h 48m
2 stops
$522Alaska Airlines
Sat, May 2 - Wed, May 6
Alaska Airlines Logo
5:00 am - 3:50 pm
ALW
-
STL
8h 50m
1 stop
Alaska Airlines Logo
5:21 pm - 11:48 pm
STL
-
ALW
32h 27m
2 stops
$545Alaska Airlines
Sat, May 2 - Wed, May 6
Alaska Airlines Logo
2:48 pm - 8:54 am
ALW
-
STL
16h 06m
2 stops
Alaska Airlines Logo
5:20 am - 2:08 pm
STL
-
ALW
10h 48m
2 stops
$565Alaska Airlines
Sat, May 2 - Wed, May 6
Alaska Airlines Logo
2:48 pm - 8:54 am
ALW
-
STL
16h 06m
2 stops
Alaska Airlines Logo
5:20 am - 2:08 pm
STL
-
ALW
10h 48m
2 stops
$590Alaska Airlines
Sat, May 2 - Wed, May 6

American Airlines flights from Walla Walla to St. Louis

Our best American Airlines deals on Walla Walla to St. Louis flight tickets
American Airlines
Apr 9
ALW5:30 amWalla Walla
7h 50m
1 stop
STL3:20 pmLambert-St Louis
Apr 12
STL5:20 amLambert-St Louis
11h 44m
2 stops
ALW3:04 pmWalla Walla
$944
American Airlines
Apr 9
ALW5:30 amWalla Walla
12h 00m
2 stops
STL7:30 pmLambert-St Louis
Apr 12
STL5:20 amLambert-St Louis
11h 44m
2 stops
ALW3:04 pmWalla Walla
$949

Alaska Airlines flights from Walla Walla to St. Louis

Our best Alaska Airlines deals on Walla Walla to St. Louis flight tickets
Alaska Airlines
May 2
ALW2:48 pmWalla Walla
7h 11m
1 stop
STL11:59 pmLambert-St Louis
May 6
STL4:46 pmLambert-St Louis
9h 02m
1 stop
ALW11:48 pmWalla Walla
$387
Alaska Airlines
May 2
ALW2:48 pmWalla Walla
7h 11m
1 stop
STL11:59 pmLambert-St Louis
May 6
STL4:46 pmLambert-St Louis
9h 02m
1 stop
ALW11:48 pmWalla Walla
$388
Alaska Airlines
May 2
ALW5:00 amWalla Walla
8h 50m
1 stop
STL3:50 pmLambert-St Louis
May 6
STL4:46 pmLambert-St Louis
9h 02m
1 stop
ALW11:48 pmWalla Walla
$392

momondo 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, momondo users made 832,500 searches. Data last updated March 18, 2026.
Use the filters below to find and compare flights from Walla Walla to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Sat 5/2

2:48 pm-11:59 pm

1 stop7h 11m

Lambert-St Louis

Wed 5/6

4:46 pm-11:48 pm

1 stop9h 02m

$387

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Sat 5/2

2:48 pm-11:59 pm

1 stop7h 11m

Lambert-St Louis

Wed 5/6

4:46 pm-11:48 pm

1 stop9h 02m

$388

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Sat 5/2

5:00 am-3:50 pm

1 stop8h 50m

Lambert-St Louis

Wed 5/6

4:46 pm-11:48 pm

1 stop9h 02m

$392

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Sat 5/2

2:48 pm-11:59 pm

1 stop7h 11m

Lambert-St Louis

Wed 5/6

4:46 pm-11:48 pm

1 stop9h 02m

$448

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Sat 5/2

2:48 pm-11:59 pm

1 stop7h 11m

Lambert-St Louis

Wed 5/6

5:20 am-2:08 pm

2 stops10h 48m

$492

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Sat 5/2

2:48 pm-11:59 pm

1 stop7h 11m

Lambert-St Louis

Wed 5/6

5:20 am-2:08 pm

2 stops10h 48m

$513

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Sat 5/2

2:48 pm-11:59 pm

1 stop7h 11m

Lambert-St Louis

Wed 5/6

5:20 am-2:08 pm

2 stops10h 48m

$522

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Sat 5/2

5:00 am-3:50 pm

1 stop8h 50m

Lambert-St Louis

Wed 5/6

5:21 pm-11:48 pm

2 stops32h 27m

$545

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Sat 5/2

2:48 pm-8:54 am

2 stops16h 06m

Lambert-St Louis

Wed 5/6

5:20 am-2:08 pm

2 stops10h 48m

$565

Walla WallaSt. Louis

ALW - STL

ALWSTL

Walla Walla

Sat 5/2

2:48 pm-8:54 am

2 stops16h 06m

Lambert-St Louis

Wed 5/6

5:20 am-2:08 pm

2 stops10h 48m

$590

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Walla Walla to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Walla Walla to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Walla Walla to St. Louis (ALW to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Walla Walla to St. Louis

Fastest flight time

6h 15m

Direct flights

None
The fastest flight from Walla Walla to St. Louis takes 6h 15m
There are no direct flights from Walla Walla to St. Louis. There are no popular flight routes from Walla Walla to St. Louis.
Search flight deals

  • How far is Walla Walla to Lambert-St Louis by plane?

    Lambert-St Louis is 1515.7 mi away from Walla Walla. By plane, this route typically takes 6h 15m.

  • When did momondo last update prices for flights from Walla Walla Airport to Lambert-St Louis Airport?

    Prices for flights from Walla Walla Airport to Lambert-St Louis Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Walla Walla Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Walla Walla Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Walla Walla to St. Louis?

    Confirm your travel details to search for the latest offers for flights from Walla Walla to St. Louis. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Walla Walla to St. Louis with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Collinsville
Alton
St. Peters
Wentzville
Fenton
Farmington
Clayton
Edwardsville
Festus
Eureka
Litchfield
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Walla Walla to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Walla Walla to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Walla Walla to St. Louis with flexible booking policies on momondo?

Yes. All flights to St. Louis from Walla Walla on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Walla Walla to St. Louis?

momondo provides multiple filters to help you find the best flight to St. Louis from Walla Walla. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Walla Walla to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Walla Walla to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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