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Alaska

$201+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Feb 17 — Feb 241
Tue 2/17
Tue 2/24
1 adult, Economy
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Cheap 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 18, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$400
(Delta)

One-way from

$201
(Delta)

Popular in

July

Cheapest in

October

Average price

$495
Provider with most accurate pricing for Lambert-St Louis-Anchorage flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Anchorage flights.
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From Lambert-St Louis to Alaska
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One-way flight from Lambert-St Louis to Alaska
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Highest demand for flights based on searches. 14% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 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 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 18, 2026.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:12 pm
STL
-
ANC
2 stops21h 10m
Delta
Thu 3/199:15 pm
ANC
-
STL
1 stop8h 46m
Delta
Deal found 1/17$400
This Alaska Airlines deal was found by Cheapflights users on 1/16. 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 stop20h 03m
Alaska Airlines
Mon 2/231:25 am
ANC
-
STL
1 stop9h 26m
Alaska Airlines
Deal found 1/16$401
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/183:05 pm
STL
-
ANC
1 stop30h 46m
Delta
Fri 3/209:15 pm
ANC
-
STL
1 stop11h 33m
Delta
Deal found 1/17$402
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 2/76:19 pm
STL
-
FAI
1 stop11h 29m
Alaska Airlines
Sat 2/1412:29 pm
FAI
-
STL
2 stops32h 30m
Alaska Airlines
Deal found 1/17$406
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.
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 1/18$408
This Delta deal was found by Cheapflights users on 1/16. 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 2/196:10 am
STL
-
ANC
2 stops17h 34m
Delta
Tue 2/245:45 am
ANC
-
STL
2 stops14h 38m
Delta
Deal found 1/16$413
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/173:05 pm
STL
-
ANC
1 stop30h 46m
Delta
Thu 3/199:15 pm
ANC
-
STL
1 stop8h 46m
Delta
Deal found 1/17$443
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/183:05 pm
STL
-
ANC
1 stop30h 46m
Delta
Sun 3/229:15 pm
ANC
-
STL
1 stop23h 10m
Delta
Deal found 1/17$445
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 3/17:00 am
STL
-
FAI
1 stop20h 50m
Alaska Airlines
Sun 3/85:51 am
FAI
-
STL
1 stop15h 08m
Alaska Airlines
Deal found 1/17$517
This Alaska Airlines deal was found by Cheapflights users on 1/15. 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 2/247:00 am
STL
-
JNU
2 stops17h 34m
Alaska Airlines
Thu 2/267:26 am
JNU
-
STL
2 stops13h 33m
Alaska Airlines
Deal found 1/15$532
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.
Fri 8/146:20 pm
STL
-
FAI
1 stop9h 14m
Alaska Airlines
Mon 8/245:50 am
FAI
-
STL
1 stop15h 09m
Alaska Airlines
Deal found 1/17$546
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.
Sat 9/56:00 am
STL
-
JNU
2 stops15h 07m
Delta
Sat 9/127:05 am
JNU
-
STL
2 stops14h 31m
Delta
Deal found 1/18$557

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 18, 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

Sat 2/7

4:15 pm-11:15 pm

1 stop10h 00m

Anchorage

Fri 2/20

11:45 pm-1:14 pm

1 stop10h 29m

$401

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 3/6

7:00 am-9:49 pm

1 stop17h 49m

Anchorage

Wed 3/11

2:26 am-11:59 pm

1 stop18h 33m

$401

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Sat 2/7

11:23 am-6:56 pm

1 stop10h 33m

Anchorage

Fri 2/20

9:15 pm-10:44 am

1 stop10h 29m

$401

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 2/19

7:00 am-12:03 am

1 stop20h 03m

Anchorage

Mon 2/23

1:25 am-1:51 pm

1 stop9h 26m

$401

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 2/23

7:00 am-12:03 am

1 stop20h 03m

Anchorage

Thu 2/26

2:26 am-1:51 pm

1 stop8h 25m

$401

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 3/18

6:12 pm-12:22 pm

2 stops21h 10m

Anchorage

Fri 3/20

9:15 pm-11:48 am

1 stop11h 33m

$406

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Sat 2/7

6:19 pm-2:48 am

1 stop11h 29m

Fairbanks

Sat 2/14

12:29 pm-11:59 pm

2 stops32h 30m

$406

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Sun 3/1

7:00 am-2:38 am

1 stop22h 38m

Fairbanks

Sun 3/8

5:51 am-11:59 pm

1 stop15h 08m

$517

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 2/26

7:00 am-10:40 am

2 stops30h 40m

Fairbanks

Thu 3/5

3:59 pm-1:51 pm

1 stop18h 52m

$520

St. LouisJuneau

STL - JNU

STLJNU

Lambert-St Louis

Tue 2/24

7:00 am-8:04 pm

3 stops40h 04m

Juneau Intl

Thu 2/26

9:50 am-1:51 pm

3 stops25h 01m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 29 results
1
2
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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 18, 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
11,738 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

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
11,738 reviews
Alaska Airlines
8.0
Very good
11,738 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

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
8,075 reviews
Alaska Airlines
8.0
Very good
11,738 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

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
9,175 reviews
Alaska Airlines
8.0
Very good
11,738 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

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
11,155 reviews
Alaska Airlines
8.0
Very good
11,738 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

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 10h. United Airlines provides one of the quickest options available for as low as $401. 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?

    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

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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 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$259Average$648FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$368Average$656FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$384Average$755FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$435Average$750FlexibilityNo cancel feeOn-time69%

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