Alaska

$236+ 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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Apr 27 — May 41
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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 March 28, 2026.

This Delta deal was found by Cheapflights users on 3/27. 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.
Fri 5/86:21 am
STL
-
ANC
1 stop17h 28m
Delta
Sat 5/96:00 am
ANC
-
STL
1 stop14h 21m
Delta
Deal found 3/27$465
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 4/304:46 pm
STL
-
ANC
1 stop19h 58m
Alaska Airlines
Mon 5/46:00 am
ANC
-
STL
1 stop14h 59m
Alaska Airlines
Deal found 3/26$471
This Delta deal was found by Cheapflights users on 3/27. 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.
Tue 5/53:25 pm
STL
-
ANC
1 stop30h 21m
Delta
Wed 5/136:00 am
ANC
-
STL
1 stop14h 21m
Delta
Deal found 3/27$472
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 4/294:46 pm
STL
-
ANC
1 stop21h 25m
Alaska Airlines
Tue 5/510:26 am
ANC
-
STL
1 stop10h 33m
Alaska Airlines
Deal found 3/27$474
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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 4/234:46 pm
STL
-
FAI
1 stop9h 07m
Alaska Airlines
Thu 4/303:59 pm
FAI
-
STL
1 stop29h 00m
Alaska Airlines
Deal found 3/24$475
This Delta deal was found by Cheapflights users on 3/27. 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.
Tue 5/56:20 am
STL
-
ANC
2 stops21h 05m
Delta
Sat 5/99:59 pm
ANC
-
STL
1 stop7h 47m
Delta
Deal found 3/27$476
This Delta deal was found by Cheapflights users on 3/27. 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.
Sat 5/96:45 am
STL
-
ANC
2 stops20h 46m
Delta
Sun 5/106:00 am
ANC
-
STL
2 stops15h 30m
Delta
Deal found 3/27$477
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 4/224:46 pm
STL
-
FAI
2 stops34h 33m
Alaska Airlines
Wed 4/295:30 am
FAI
-
STL
1 stop15h 29m
Alaska Airlines
Deal found 3/25$478
This Delta deal was found by Cheapflights users on 3/27. 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.
Thu 4/3012:23 pm
STL
-
ANC
2 stops15h 02m
Delta
Tue 5/59:15 pm
ANC
-
STL
2 stops15h 17m
Delta
Deal found 3/27$483
This Delta deal was found by Cheapflights users on 3/27. 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 5/106:21 am
STL
-
ANC
1 stop17h 28m
Delta
Mon 5/116:00 am
ANC
-
STL
1 stop14h 21m
Delta
Deal found 3/27$491
This Delta deal was found by Cheapflights users on 3/23. 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.
Fri 6/57:59 pm
STL
-
ANC
2 stops17h 33m
Delta
Sat 6/69:30 pm
ANC
-
STL
1 stop12h 39m
Delta
Deal found 3/23$496
This Delta deal was found by Cheapflights users on 3/23. 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 6/16:45 am
STL
-
ANC
1 stop16h 31m
Delta
Sun 6/710:30 pm
ANC
-
STL
1 stop11h 39m
Delta
Deal found 3/23$497

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 March 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$465
(Delta)

One-way from

$236
(Delta)

Popular in

July

Cheapest in

October

Average price

$495
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. 18% potential increase in price ($133 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 March 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 March 28, 2026.
Use the filters below to find and compare flights from St. Louis to Alaska that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 4/30

4:46 pm-9:44 am

1 stop19h 58m

Anchorage

Mon 5/4

6:00 am-11:59 pm

1 stop14h 59m

$471

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 4/30

6:20 am-6:46 pm

1 stop15h 26m

Anchorage

Tue 5/5

9:15 pm-2:29 pm

1 stop14h 14m

$471

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Sat 5/23

5:36 pm-12:56 am

1 stop10h 20m

Anchorage

Fri 5/29

12:05 am-1:32 pm

1 stop10h 27m

$471

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 6/3

10:49 am-12:31 am

2 stops16h 42m

Anchorage

Thu 6/4

9:59 pm-8:46 am

1 stop7h 47m

$476

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 6/3

10:49 am-12:31 am

2 stops16h 42m

Anchorage

Tue 6/9

10:30 pm-1:09 pm

1 stop11h 39m

$476

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 4/23

4:46 pm-12:19 am

2 stops34h 33m

Fairbanks

Thu 4/30

10:30 pm-11:59 pm

2 stops22h 29m

$481

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 4/20

2:20 pm-12:25 am

2 stops13h 05m

Anchorage

Sat 4/25

6:00 am-11:13 pm

2 stops14h 13m

$483

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 6/4

7:15 am-6:39 pm

1 stop14h 24m

Anchorage

Fri 6/5

12:05 am-1:32 pm

1 stop10h 27m

$497

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 6/9

2:28 pm-11:44 pm

1 stop12h 16m

Anchorage

Tue 6/16

10:30 pm-1:09 pm

1 stop11h 39m

$503

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 5/22

6:00 am-6:38 pm

1 stop15h 38m

Anchorage

Fri 5/29

6:00 am-12:30 am

2 stops15h 30m

$504

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 37 resultsSorted by cheapest first
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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.

How much does it cost to fly round-trip from St. Louis to Alaska?

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 March 28, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited 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.

Food

7.0

Comfort

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Food

7.0

Comfort

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Food

7.0

Comfort

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Food

7.0

Comfort

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Food

7.0

Comfort

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

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 15h 23m. Alaska Airlines provides one of the quickest options available for as low as $522. There are 2211 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 ($200).

  • 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 March 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$291Average$569FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$364Average$761FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$368Average$669FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$384Average$684FlexibilityNo cancel feeOn-time75%

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