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Cheap flights from Walla Walla to St. Louis from $505

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 10/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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
3:08 pm - 11:59 pmALW  Walla Walla-STL Lambert-St Louis
6h 51m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:02 am - 2:28 pmSTL  Lambert-St Louis-ALW Walla Walla
9h 26m1 stop Seattle/Tacoma Intl
$505Alaska Airlines
Tue, Oct 6 - Wed, Oct 7
Alaska Airlines Logo
5:06 am - 2:26 pmALW  Walla Walla-STL Lambert-St Louis
7h 20m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
3:24 pm - 11:56 pmSTL  Lambert-St Louis-ALW Walla Walla
10h 32m1 stop Seattle/Tacoma Intl
$584Alaska Airlines
Sat, Jan 9 - Tue, Jan 12
Alaska Airlines Logo
5:06 am - 2:26 pmALW  Walla Walla-STL Lambert-St Louis
7h 20m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:54 pm - 11:56 pmSTL  Lambert-St Louis-ALW Walla Walla
11h 02m2 stops Dallas/Fort Worth Seattle/Tacoma Intl
$600Alaska Airlines
Sat, Jan 9 - Tue, Jan 12
Alaska Airlines Logo
3:01 pm - 11:59 pmALW  Walla Walla-STL Lambert-St Louis
6h 58m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:00 am - 2:27 pmSTL  Lambert-St Louis-ALW Walla Walla
9h 27m1 stop Seattle/Tacoma Intl
$607Alaska Airlines
Tue, Nov 24 - Tue, Dec 1
Alaska Airlines Logo
3:01 pm - 11:59 pmALW  Walla Walla-STL Lambert-St Louis
6h 58m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:00 am - 2:27 pmSTL  Lambert-St Louis-ALW Walla Walla
9h 27m1 stop Seattle/Tacoma Intl
$608Alaska Airlines
Sun, Nov 22 - Tue, Dec 1
Alaska Airlines Logo
5:01 am - 3:44 pmALW  Walla Walla-STL Lambert-St Louis
8h 43m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:32 am - 2:28 pmSTL  Lambert-St Louis-ALW Walla Walla
9h 56m2 stops Dallas/Fort Worth Seattle/Tacoma Intl
$620Alaska Airlines
Tue, Oct 6 - Wed, Oct 7
Alaska Airlines Logo
5:01 am - 7:48 pmALW  Walla Walla-STL Lambert-St Louis
12h 47m2 stops Seattle/Tacoma Intl Dallas/Fort Worth
Alaska Airlines Logo
5:40 am - 2:28 pmSTL  Lambert-St Louis-ALW Walla Walla
10h 48m2 stops Dallas/Fort Worth Seattle/Tacoma Intl
$656Alaska Airlines
Tue, Oct 6 - Wed, Oct 7
Alaska Airlines Logo
5:06 am - 2:17 pmALW  Walla Walla-STL Lambert-St Louis
7h 11m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:00 am - 2:27 pmSTL  Lambert-St Louis-ALW Walla Walla
9h 27m1 stop Seattle/Tacoma Intl
$657Alaska Airlines
Thu, Nov 26 - Tue, Dec 1
Alaska Airlines Logo
5:06 am - 7:41 pmALW  Walla Walla-STL Lambert-St Louis
12h 35m2 stops Seattle/Tacoma Intl Dallas/Fort Worth
Alaska Airlines Logo
2:54 pm - 11:56 pmSTL  Lambert-St Louis-ALW Walla Walla
11h 02m2 stops Dallas/Fort Worth Seattle/Tacoma Intl
$668Alaska Airlines
Sat, Jan 9 - Tue, Jan 12
Alaska Airlines Logo
5:00 am - 2:06 pmALW  Walla Walla-STL Lambert-St Louis
7h 06m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:35 am - 1:09 pmSTL  Lambert-St Louis-ALW Walla Walla
8h 34m1 stop Seattle/Tacoma Intl
$675Alaska Airlines
Sun, Aug 23 - Thu, Aug 27

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Alaska Airlines flights from Walla Walla to St. Louis

Our best Alaska Airlines deals on Walla Walla to St. Louis flight tickets
Alaska Airlines
Oct 6
ALW3:08 pmWalla Walla
6h 51m
1 stop
STL11:59 pmLambert-St Louis
Oct 7
STL7:02 amLambert-St Louis
9h 26m
1 stop
ALW2:28 pmWalla Walla
$505
Alaska Airlines
Jan 9
ALW5:06 amWalla Walla
7h 20m
1 stop
STL2:26 pmLambert-St Louis
Jan 12
STL3:24 pmLambert-St Louis
10h 32m
1 stop
ALW11:56 pmWalla Walla
$584
Alaska Airlines
Jan 9
ALW5:06 amWalla Walla
7h 20m
1 stop
STL2:26 pmLambert-St Louis
Jan 12
STL2:54 pmLambert-St Louis
11h 02m
2 stops
ALW11:56 pmWalla Walla
$600

American Airlines flights from Walla Walla to St. Louis

Our best American Airlines deals on Walla Walla to St. Louis flight tickets
American Airlines
Nov 26
ALW5:06 amWalla Walla
12h 19m
2 stops
STL7:25 pmLambert-St Louis
Dec 1
STL5:31 pmLambert-St Louis
32h 25m
2 stops
ALW11:56 pmWalla Walla
$687
American Airlines
Nov 22
ALW5:06 amWalla Walla
11h 09m
2 stops
STL6:15 pmLambert-St Louis
Dec 1
STL7:00 amLambert-St Louis
9h 27m
1 stop
ALW2:27 pmWalla Walla
$713
American Airlines
Nov 22
ALW5:06 amWalla Walla
11h 09m
2 stops
STL6:15 pmLambert-St Louis
Dec 1
STL5:00 amLambert-St Louis
11h 27m
2 stops
ALW2:27 pmWalla Walla
$780

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 August 13, 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

Walla WallaSt. Louis

ALW Walla Walla - STL Lambert-St Louis

ALWSTL

Walla Walla

Tue 10/6

3:08 pm-11:59 pm

1 stop6h 51m

Lambert-St Louis

Wed 10/7

7:02 am-2:28 pm

1 stop9h 26m

$505

Walla WallaSt. Louis

ALW Walla Walla - STL Lambert-St Louis

ALWSTL

Walla Walla

Sat 1/9

5:06 am-2:26 pm

1 stop7h 20m

Lambert-St Louis

Tue 1/12

3:24 pm-11:56 pm

1 stop10h 32m

$584

Walla WallaSt. Louis

ALW Walla Walla - STL Lambert-St Louis

ALWSTL

Walla Walla

Sat 1/9

5:06 am-2:26 pm

1 stop7h 20m

Lambert-St Louis

Tue 1/12

2:54 pm-11:56 pm

2 stops11h 02m

$600

Walla WallaSt. Louis

ALW Walla Walla - STL Lambert-St Louis

ALWSTL

Walla Walla

Tue 11/24

3:01 pm-11:59 pm

1 stop6h 58m

Lambert-St Louis

Tue 12/1

7:00 am-2:27 pm

1 stop9h 27m

$607

Walla WallaSt. Louis

ALW Walla Walla - STL Lambert-St Louis

ALWSTL

Walla Walla

Sun 11/22

3:01 pm-11:59 pm

1 stop6h 58m

Lambert-St Louis

Tue 12/1

7:00 am-2:27 pm

1 stop9h 27m

$608

Walla WallaSt. Louis

ALW Walla Walla - STL Lambert-St Louis

ALWSTL

Walla Walla

Tue 10/6

5:01 am-3:44 pm

1 stop8h 43m

Lambert-St Louis

Wed 10/7

6:32 am-2:28 pm

2 stops9h 56m

$620

Walla WallaSt. Louis

ALW Walla Walla - STL Lambert-St Louis

ALWSTL

Walla Walla

Tue 10/6

5:01 am-7:48 pm

2 stops12h 47m

Lambert-St Louis

Wed 10/7

5:40 am-2:28 pm

2 stops10h 48m

$656

Walla WallaSt. Louis

ALW Walla Walla - STL Lambert-St Louis

ALWSTL

Walla Walla

Thu 11/26

5:06 am-2:17 pm

1 stop7h 11m

Lambert-St Louis

Tue 12/1

7:00 am-2:27 pm

1 stop9h 27m

$657

Walla WallaSt. Louis

ALW Walla Walla - STL Lambert-St Louis

ALWSTL

Walla Walla

Sat 1/9

5:06 am-7:41 pm

2 stops12h 35m

Lambert-St Louis

Tue 1/12

2:54 pm-11:56 pm

2 stops11h 02m

$668
Quickest round-trip

Walla WallaSt. Louis

ALW Walla Walla - STL Lambert-St Louis

ALWSTL

Walla Walla

Sun 8/23

5:00 am-2:06 pm

1 stop7h 06m

Lambert-St Louis

Thu 8/27

6:35 am-1:09 pm

1 stop8h 34m

$675

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 51m

Direct flights

None
The fastest flight from Walla Walla to St. Louis takes 6h 51m
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

Frequently asked questions about flying from Walla Walla to St. Louis

  • 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 51m.

  • 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.

Frequently asked questions about flying from Walla Walla to St. Louis

  • 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
Fairview Heights
Hermann
St. Peters
Maryland Heights
Collinsville
Florissant
Alton
O'Fallon
Farmington
Clayton
Fenton
Festus
Wentzville
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

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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