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Alaska

$324+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$367
(Alaska Airlines)

One-way from

$324
(Delta)

Popular in

July

Cheapest in

October

Average price

$532
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. 13% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 26, 2025.

This Delta deal was found by Cheapflights users on 11/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:49 pmSTL - ANC
1 stop15h 08mDelta
Sat 12/278:15 pmANC - STL
1 stop9h 43mDelta
Deal found 11/25$431
This Delta deal was found by Cheapflights users on 11/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/203:43 pmSTL - ANC
1 stop12h 39mDelta
Fri 12/268:15 pmANC - STL
1 stop9h 43mDelta
Deal found 11/25$461
This Delta deal was found by Cheapflights users on 11/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1112:49 pmSTL - ANC
1 stop15h 08mDelta
Wed 12/179:45 pmANC - STL
1 stop11h 19mDelta
Deal found 11/24$500
This United Airlines deal was found by Cheapflights users on 11/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/192:45 pmSTL - ANC
1 stop11h 11mUnited Airlines
Fri 12/261:30 amANC - STL
1 stop8h 50mUnited Airlines
Deal found 11/25$538
This Alaska Airlines deal was found by Cheapflights users on 11/24. 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.
Tue 12/97:00 amSTL - FAI
1 stop11h 04mAlaska Airlines
Sat 12/134:04 pmFAI - STL
1 stop19h 23mAlaska Airlines
Deal found 11/24$601
This Delta deal was found by Cheapflights users on 11/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1112:49 pmSTL - FAI
2 stops14h 29mDelta
Sun 12/141:30 amFAI - STL
2 stops19h 12mDelta
Deal found 11/26$612
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amSTL - JNU
2 stops17h 33mAlaska Airlines
Wed 12/179:48 amJNU - STL
3 stops35h 11mAlaska Airlines
Deal found 11/23$700
This Alaska Airlines deal was found by Cheapflights users on 11/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:00 amSTL - FAI
1 stop11h 04mAlaska Airlines
Wed 12/104:04 pmFAI - STL
1 stop19h 23mAlaska Airlines
Deal found 11/23$741
This Alaska Airlines deal was found by Cheapflights users on 11/24. 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.
Wed 12/37:00 amSTL - FAI
1 stop11h 04mAlaska Airlines
Thu 12/115:00 amFAI - STL
2 stops15h 59mAlaska Airlines
Deal found 11/24$745
This Alaska Airlines deal was found by Cheapflights users on 11/26. 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 12/117:00 amSTL - FAI
1 stop11h 04mAlaska Airlines
Sun 12/142:18 amFAI - STL
1 stop9h 09mAlaska Airlines
Deal found 11/26$759
This Delta deal was found by Cheapflights users on 11/23. 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.
Sat 12/66:30 amSTL - FAI
2 stops20h 48mDelta
Tue 12/91:30 amFAI - STL
2 stops17h 27mDelta
Deal found 11/23$783

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 November 26, 2025.
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. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Tue 2/17

7:00 am-7:40 am

2 stops27h 40m

Fairbanks

Tue 2/24

3:59 pm-1:51 pm

1 stop18h 52m

$367

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Sat 2/14

3:38 pm-12:10 pm

2 stops23h 32m

Anchorage

Wed 2/18

9:15 pm-4:45 pm

1 stop16h 30m

$396

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 1/12

3:40 pm-12:48 am

1 stop12h 08m

Anchorage

Wed 1/21

9:15 pm-2:38 pm

1 stop14h 23m

$400

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Sat 2/14

2:47 pm-9:49 pm

1 stop10h 02m

Anchorage

Wed 2/18

5:00 pm-1:51 pm

1 stop17h 51m

$400

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Tue 2/17

2:22 pm-12:22 am

2 stops13h 00m

Fairbanks

Mon 2/23

1:27 am-12:25 am

2 stops19h 58m

$423

St. LouisJuneau

STL - JNU

STLJNU

Lambert-St Louis

Sat 2/14

2:47 pm-8:04 pm

3 stops32h 17m

Juneau Intl

Wed 2/18

7:26 am-1:51 pm

2 stops27h 25m

$491

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Tue 12/9

7:00 am-3:04 pm

1 stop11h 04m

Fairbanks

Sat 12/13

4:04 pm-2:27 pm

1 stop19h 23m

$601

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 12/11

3:23 pm-12:39 am

1 stop12h 16m

Fairbanks

Mon 12/15

8:39 am-2:27 pm

2 stops26h 48m

$605

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 12/11

12:49 pm-12:18 am

2 stops14h 29m

Fairbanks

Sun 12/14

1:30 am-11:42 pm

2 stops19h 12m

$612

St. LouisKetchikan

STL - KTN

STLKTN

Lambert-St Louis

Thu 1/8

2:38 pm-4:48 pm

2 stops29h 10m

Ketchikan

Mon 1/12

9:12 am-7:29 pm

2 stops31h 17m

$614

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 15 results
1
2

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 $310). 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.

What is the cheapest time of day to fly from STL to AK?

Find hourly flight availability from St. Louis to Alaska. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Alaska at noon. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from St. Louis to Alaska?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Alaska. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their St. Louis to Alaska flight should consider departing on Thursday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 26, 2025.
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
11,352 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Alaska Airlines
8.0
Very good
11,352 reviews
Alaska Airlines
8.0
Very good
11,352 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Delta
7.9
Good
7,998 reviews
Alaska Airlines
8.0
Very good
11,352 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
United Airlines
7.4
Good
9,046 reviews
Alaska Airlines
8.0
Very good
11,352 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
American Airlines
7.2
Good
11,038 reviews
Alaska Airlines
8.0
Very good
11,352 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.

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 23h 32m. Alaska Airlines provides one of the quickest options available for as low as $396. 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 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 $310). 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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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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$362Average$648FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$442Average$748FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$457Average$773FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$468Average$669FlexibilityNo cancel feeOn-time71%

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