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St. Louis

$200+ Cheap flights from Alaska to St. Louis (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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — STL
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap flight deals from Alaska to St. Louis

Keep the following information in mind while searching for Alaska to St. Louis flight deals. Data was last updated January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$401
(Alaska Airlines)

One-way from

$200
(Delta)

Popular in

November

Cheapest in

January

Average price

$409
Provider with most accurate pricing for Anchorage-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Anchorage-Lambert-St Louis flights.
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From Alaska to Lambert-St Louis
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One-way flight from Alaska to Lambert-St Louis
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Highest demand for flights based on searches. 20% potential increase in price ($170 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Alaska to St. Louis

Cheapest flights from Alaska to St. Louis
Explore the most affordable flight options available from Alaska to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/17. 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.
Sun 3/16:00 am
ANC
-
STL
1 stop14h 59m
Alaska Airlines
Sun 3/87:00 am
STL
-
ANC
1 stop13h 06m
Alaska Airlines
Deal found 1/17$401
This Expedia deal was found by Cheapflights users on 1/17. 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.
Wed 3/43:59 pm
FAI
-
STL
1 stop18h 52m
Alaska Airlines
Sun 3/87:00 am
STL
-
FAI
1 stop18h 15m
Alaska Airlines
Deal found 1/17$442
This Delta deal was found by Cheapflights users on 1/18. 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.
Sun 3/19:15 pm
ANC
-
STL
2 stops17h 27m
Delta
Sun 3/86:29 am
STL
-
ANC
2 stops17h 05m
Delta
Deal found 1/18$452
This Alaska Airlines deal was found by Cheapflights users on 1/18. 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 2/171:25 am
ANC
-
STL
1 stop9h 26m
Alaska Airlines
Sat 2/212:47 pm
STL
-
ANC
1 stop10h 02m
Alaska Airlines
Deal found 1/18$513
This Alaska Airlines deal was found by Cheapflights users on 1/17. 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 3/55:51 am
FAI
-
STL
1 stop15h 08m
Alaska Airlines
Sun 3/87:00 am
STL
-
FAI
1 stop18h 15m
Alaska Airlines
Deal found 1/17$514
This Expedia deal was found by Cheapflights users on 1/17. 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.
Wed 6/35:45 pm
ANC
-
STL
1 stop19h 05m
Alaska Airlines
Thu 6/46:20 pm
STL
-
ANC
1 stop19h 00m
Alaska Airlines
Deal found 1/17$539
This Orbitz deal was found by Cheapflights users on 1/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:05 am
ANC
-
STL
1 stop15h 52m
Alaska Airlines
Fri 6/196:20 pm
STL
-
ANC
1 stop18h 49m
Alaska Airlines
Deal found 1/17$545
This Alaska Airlines deal was found by Cheapflights users on 1/17. 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.
Sun 2/12:10 am
FAI
-
STL
1 stop8h 44m
Alaska Airlines
Fri 2/62:50 pm
STL
-
FAI
1 stop12h 06m
Alaska Airlines
Deal found 1/17$602
This Alaska Airlines deal was found by Cheapflights users on 1/17. 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 1/314:06 pm
FAI
-
STL
1 stop18h 48m
Alaska Airlines
Wed 2/47:04 am
STL
-
FAI
2 stops22h 44m
Alaska Airlines
Deal found 1/17$708

Cheapflights Fare Finder

 
Customize your flight search to find flights from Alaska 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 January 20, 2026.
Use the filters below to find and compare flights from Alaska to St. Louis that are best for you.

Fly from

Alaska

Fly to

St. Louis

Route

Depart

Return

Price

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Sun 3/1

6:00 am-11:59 pm

1 stop14h 59m

Lambert-St Louis

Sun 3/8

7:00 am-5:06 pm

1 stop13h 06m

$401

FairbanksSt. Louis

FAI - STL

FAISTL

Fairbanks

Wed 3/4

3:59 pm-1:51 pm

1 stop18h 52m

Lambert-St Louis

Sun 3/8

7:00 am-10:15 pm

1 stop18h 15m

$442

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Sun 3/1

9:15 pm-5:42 pm

2 stops17h 27m

Lambert-St Louis

Sun 3/8

6:29 am-8:34 pm

2 stops17h 05m

$452

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Tue 2/17

12:29 am-1:51 pm

1 stop10h 22m

Lambert-St Louis

Sat 2/21

2:47 pm-9:49 pm

1 stop10h 02m

$513

FairbanksSt. Louis

FAI - STL

FAISTL

Fairbanks

Thu 3/5

5:51 am-11:59 pm

1 stop15h 08m

Lambert-St Louis

Sun 3/8

7:00 am-10:15 pm

1 stop18h 15m

$514

FairbanksSt. Louis

FAI - STL

FAISTL

Fairbanks

Sun 2/1

2:10 am-1:54 pm

1 stop8h 44m

Lambert-St Louis

Fri 2/6

2:50 pm-11:56 pm

1 stop12h 06m

$602

FairbanksSt. Louis

FAI - STL

FAISTL

Fairbanks

Sat 1/31

4:06 pm-1:54 pm

1 stop18h 48m

Lambert-St Louis

Wed 2/4

7:04 am-12:56 pm

2 stops32h 52m

$708

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Wed 3/11

5:00 pm-1:51 pm

1 stop17h 51m

$200

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Wed 3/11

9:15 pm-11:48 am

1 stop11h 33m

$200

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Fri 5/29

11:59 pm-2:18 pm

1 stop11h 19m

$272

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/17

Showing 1-10 of 15 results
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Best time to book a flight from Alaska to St. Louis

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

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

Currently, October is the cheapest month in which you can book a flight from Alaska to St. Louis (average of $359). Flying from Alaska to St. Louis in August is currently the most expensive (average of $612). 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 Alaska to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Alaska?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Alaska. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    A quick flight from Alaska to St. Louis can take about 14h 59m. Alaska Airlines provides one of the quickest options available for as low as $401. There are 2927 mi between Alaska and St. Louis.

  • What are the cheapest airlines to fly from Alaska to St. Louis one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $236. Alaska Airlines flights start at $249 while deals on Delta start at $249 one-way.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Alaska to St. Louis (average of $359). Flying from Alaska to St. Louis in August is currently the most expensive (average of $612). 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Alaska to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Alaska to St. Louis

Discover the top 4 airlines that operate flights from Alaska to St. Louis. 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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$364Average$644FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$403Average$548FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$493Average$499FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$560Average$664FlexibilityNo cancel feeOn-time75%

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