Alaska

$171+ Cheap flights from St. Louis (STL) to Alaska

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Mar 13 — Mar 201
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Cheap flight deals from St. Louis to Alaska

Cheapest flights from St. Louis to Alaska
Explore the most affordable flight options available from St. Louis to Alaska. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.

This American Airlines deal was found by Cheapflights users on 2/9. 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 4/297:12 am
STL
-
ANC
1 stop14h 38m
American Airlines
Wed 5/68:30 pm
ANC
-
STL
1 stop17h 51m
American Airlines
Deal found 2/9$319
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Wed 4/299:10 am
STL
-
ANC
2 stops16h 35m
United Airlines
Wed 5/611:59 pm
ANC
-
STL
1 stop9h 35m
United Airlines
Deal found 2/9$324
This Delta deal was found by Cheapflights users on 2/9. 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 4/297:02 am
STL
-
ANC
2 stops16h 35m
Delta
Wed 5/66:00 am
ANC
-
STL
2 stops14h 13m
Delta
Deal found 2/9$331
This Alaska Airlines deal was found by Cheapflights users on 2/7. 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 4/67:00 am
STL
-
ANC
1 stop14h 42m
Alaska Airlines
Mon 4/62:25 am
ANC
-
STL
1 stop18h 34m
Alaska Airlines
Deal found 2/7$354
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Tue 3/247:00 am
STL
-
ANC
1 stop15h 06m
American Airlines
Tue 3/318:13 pm
ANC
-
STL
1 stop9h 42m
American Airlines
Deal found 2/10$359
This American Airlines deal was found by Cheapflights users on 2/8. 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 4/137:12 am
STL
-
ANC
1 stop14h 38m
American Airlines
Sat 4/188:30 pm
ANC
-
STL
1 stop12h 07m
American Airlines
Deal found 2/8$360
This Alaska Airlines deal was found by Cheapflights users on 2/10. 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.
Tue 3/243:50 pm
STL
-
ANC
2 stops21h 28m
Alaska Airlines
Tue 3/3110:48 am
ANC
-
STL
1 stop10h 11m
Alaska Airlines
Deal found 2/10$364
This Delta deal was found by Cheapflights users on 2/8. 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.
Mon 4/67:15 am
STL
-
ANC
2 stops16h 20m
Delta
Tue 4/79:15 pm
ANC
-
STL
1 stop11h 33m
Delta
Deal found 2/8$365
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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.
Wed 3/47:00 am
STL
-
ANC
2 stops30h 25m
Alaska Airlines
Mon 3/95:00 pm
ANC
-
STL
1 stop17h 51m
Alaska Airlines
Deal found 2/9$396
This Delta deal was found by Cheapflights users on 2/9. 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.
Mon 3/97:15 am
STL
-
FAI
2 stops19h 56m
Delta
Sun 3/151:30 am
FAI
-
STL
2 stops19h 51m
Delta
Deal found 2/9$444
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 3/97:00 am
STL
-
FAI
1 stop18h 15m
Alaska Airlines
Mon 3/168:50 am
FAI
-
STL
2 stops26h 01m
Alaska Airlines
Deal found 2/9$468
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 9/127:32 pm
STL
-
FAI
1 stop20h 15m
Alaska Airlines
Wed 9/163:53 pm
FAI
-
STL
1 stop19h 33m
Alaska Airlines
Deal found 2/9$476

Find flight deals from St. Louis to Alaska

Keep the following information in mind while searching for St. Louis to Alaska flight deals. Data was last updated February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(American Airlines)

One-way from

$171
(Alaska Airlines)

Popular in

July

Cheapest in

October

Average price

$469
Provider with most accurate pricing for Lambert-St Louis-Anchorage flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Anchorage flights.
From Lambert-St Louis to Alaska
One-way flight from Lambert-St Louis to Alaska
Highest demand for flights based on searches. 17% potential increase in price ($126 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in February 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Alaska 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 February 11, 2026.
Use the filters below to find and compare flights from St. Louis to Alaska that are best for you.

Fly from

St. Louis

Fly to

Alaska

Route

Depart

Return

Price

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 4/29

9:10 am-10:45 pm

2 stops16h 35m

Anchorage

Wed 5/6

11:59 pm-12:34 pm

1 stop9h 35m

$324

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 4/29

7:02 am-8:37 pm

2 stops16h 35m

Anchorage

Wed 5/6

6:00 am-11:13 pm

2 stops14h 13m

$331

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 4/6

7:00 am-6:42 pm

1 stop14h 42m

Anchorage

Mon 4/6

2:25 am-11:59 pm

1 stop18h 34m

$354

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 4/13

7:12 am-6:50 pm

1 stop14h 38m

Anchorage

Sat 4/18

8:30 pm-11:37 am

1 stop12h 07m

$360

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 3/24

3:50 pm-10:18 am

2 stops21h 28m

Anchorage

Tue 3/31

10:48 am-11:59 pm

1 stop10h 11m

$364

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 4/13

6:19 am-8:37 pm

2 stops17h 18m

Anchorage

Sat 4/18

9:15 pm-11:39 am

1 stop11h 24m

$365

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 4/6

2:12 pm-12:29 am

2 stops13h 17m

Anchorage

Tue 4/7

9:15 pm-4:32 pm

2 stops16h 17m

$372

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 3/4

7:00 am-10:25 am

2 stops30h 25m

Anchorage

Mon 3/9

5:00 pm-1:51 pm

1 stop17h 51m

$396

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Mon 3/9

7:15 am-12:11 am

2 stops19h 56m

Fairbanks

Sun 3/15

1:30 am-12:21 am

2 stops19h 51m

$444

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Mon 3/9

7:00 am-10:15 pm

1 stop18h 15m

Fairbanks

Mon 3/16

8:50 am-1:51 pm

2 stops26h 01m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 46 results
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Best time to book a flight from St. Louis to Alaska

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

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

Currently, December is the cheapest month in which you can book a flight from St. Louis to Alaska (average of $298). Flying from St. Louis to Alaska in November is currently the most expensive (average of $508). 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.

Reviews of airlines servicing Alaska

Get insights into the airlines that provide service to Alaska. 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 Alaska. Reviews last updated February 11, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines from St. Louis to Alaska by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Alaska. 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 from for flights from St. Louis to Alaska?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Alaska. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

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

    A quick flight from St. Louis to Alaska can take about 14h 42m. United Airlines provides one of the quickest options available for as low as $354. There are 2927 mi between St. Louis and Alaska. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from St. Louis to Alaska are American Airlines ($174), Delta ($174), and Southwest ($182).

  • What are the most popular routes from St. Louis to Alaska?

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from St. Louis to Alaska (average of $298). Flying from St. Louis to Alaska in November is currently the most expensive (average of $508). 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

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Alternative routes for St. Louis to Alaska

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from St. Louis to Alaska

Discover the top 4 airlines that operate flights from St. Louis to Alaska. 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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$259Average$616FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$368Average$656FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$384Average$818FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$435Average$750FlexibilityNo cancel feeOn-time69%

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