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Alaska

$160+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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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 January 29, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/27. 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.
Tue 3/37:00 am
STL
-
ANC
1 stop17h 49m
Alaska Airlines
Tue 3/106:09 pm
ANC
-
STL
1 stop16h 42m
Alaska Airlines
Deal found 1/27$319
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2411:25 am
STL
-
ANC
2 stops14h 25m
United Airlines
Tue 3/3111:47 pm
ANC
-
STL
2 stops13h 21m
United Airlines
Deal found 1/27$331
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 2/197:00 am
STL
-
ANC
1 stop19h 04m
Alaska Airlines
Mon 2/231:25 am
ANC
-
STL
1 stop9h 26m
Alaska Airlines
Deal found 1/28$360
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 3/96:09 pm
ANC
-
STL
1 stop16h 42m
Alaska Airlines
Deal found 1/28$365
This Expedia deal was found by Cheapflights users on 1/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:00 am
STL
-
FAI
1 stop22h 38m
Alaska Airlines
Tue 3/312:29 pm
FAI
-
STL
2 stops22h 22m
Alaska Airlines
Deal found 1/27$366
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 2/237:00 am
STL
-
ANC
1 stop17h 49m
Alaska Airlines
Fri 2/2712:11 pm
ANC
-
STL
1 stop8h 48m
Alaska Airlines
Deal found 1/28$401
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 2/277:41 am
STL
-
ANC
2 stops15h 05m
United Airlines
Mon 3/29:00 am
ANC
-
STL
1 stop8h 26m
United Airlines
Deal found 1/28$406
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 3/67:00 am
STL
-
ANC
1 stop17h 49m
Alaska Airlines
Thu 3/125:00 am
ANC
-
STL
2 stops15h 59m
Alaska Airlines
Deal found 1/28$408
This Orbitz deal was found by Cheapflights users on 1/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/247:00 am
STL
-
FAI
2 stops27h 03m
Alaska Airlines
Tue 3/313:53 pm
FAI
-
STL
1 stop19h 58m
Alaska Airlines
Deal found 1/27$408
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 3/182:31 pm
STL
-
FAI
2 stops27h 26m
Alaska Airlines
Tue 3/245:00 am
FAI
-
STL
2 stops15h 59m
Alaska Airlines
Deal found 1/28$433
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 2/277:00 am
STL
-
JNU
2 stops17h 34m
Alaska Airlines
Fri 3/69:50 am
JNU
-
STL
1 stop11h 09m
Alaska Airlines
Deal found 1/28$532
This Alaska Airlines deal was found by Cheapflights users on 1/29. 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 9/53:24 pm
STL
-
FAI
1 stop10h 17m
Alaska Airlines
Fri 9/112:09 am
FAI
-
STL
1 stop18h 50m
Alaska Airlines
Deal found 1/29$546

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(Alaska Airlines)

One-way from

$160
(Alaska Airlines)

Popular in

July

Cheapest in

October

Average price

$495
Provider with most accurate pricing for Lambert-St Louis-Anchorage flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Anchorage flights.
Search Deals
From Lambert-St Louis to Alaska
Search Deals
One-way flight from Lambert-St Louis to Alaska
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($103 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 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 3/4

7:00 am-12:03 am

1 stop20h 03m

Anchorage

Mon 3/9

6:09 pm-1:51 pm

1 stop16h 42m

$360

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 2/19

7:00 am-12:03 am

1 stop20h 03m

Anchorage

Mon 2/23

12:29 am-1:51 pm

1 stop10h 22m

$360

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Tue 2/24

7:00 am-2:38 am

1 stop22h 38m

Fairbanks

Tue 3/3

12:29 pm-1:51 pm

2 stops22h 22m

$366

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 2/27

2:45 pm-11:08 pm

1 stop11h 23m

Anchorage

Mon 3/2

9:00 am-8:26 pm

1 stop8h 26m

$401

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 5/4

5:20 am-6:50 pm

1 stop16h 30m

Anchorage

Fri 5/8

8:30 pm-7:30 pm

1 stop20h 00m

$401

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 3/9

2:47 pm-1:09 am

1 stop13h 22m

Anchorage

Fri 3/13

8:00 am-11:59 pm

1 stop12h 59m

$401

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 3/6

7:00 am-12:03 am

1 stop20h 03m

Anchorage

Thu 3/12

8:00 am-11:59 pm

1 stop12h 59m

$401

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 2/23

7:00 am-9:49 pm

1 stop17h 49m

Anchorage

Fri 2/27

7:00 am-11:59 pm

1 stop13h 59m

$401

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Tue 3/24

7:00 am-7:03 am

2 stops27h 03m

Fairbanks

Tue 3/31

3:53 pm-2:51 pm

1 stop19h 58m

$408

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Wed 3/18

2:31 pm-2:57 pm

2 stops27h 26m

Fairbanks

Tue 3/24

5:00 am-11:59 pm

2 stops15h 59m

$433

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 29 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 January 29, 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.
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,807 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,127 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,215 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,206 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 12h 47m. Alaska Airlines provides one of the quickest options available for as low as $636. 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 ($182).

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

    The most popular route from St. Louis to Alaska is Lambert-St Louis - Anchorage. You may also consider Lambert-St Louis - Fairbanks or Lambert-St Louis - Juneau Intl.

  • 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.
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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$259Average$622FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$384Average$835FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$435Average$751FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$473Average$656FlexibilityNo cancel feeOn-time71%

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