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Alaska

$179+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$356
(Alaska Airlines)

One-way from

$179
(American Airlines)

Popular in

February

Cheapest in

November

Average price

$616
From Lambert-St Louis to Alaska
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One-way flight from Lambert-St Louis to Alaska
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High demand for flights, 0% potential price rise
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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 August 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 August 18, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/246:00 amSTL - ANC
1 stop11h 32mAlaska Airlines
Mon 9/297:45 amANC - STL
1 stop13h 14mAlaska Airlines
Deal found 8/17$356
This Delta deal was found by Cheapflights users on 8/16. 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.
Wed 9/107:00 amSTL - ANC
2 stops16h 17mDelta
Wed 10/16:15 amANC - STL
1 stop7h 30mDelta
Deal found 8/16$361
This Delta deal was found by Cheapflights users on 8/16. 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.
Wed 9/2412:15 pmSTL - ANC
1 stop9h 38mDelta
Sun 9/2812:55 amANC - STL
2 stops14h 07mDelta
Deal found 8/16$362
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Fri 9/266:00 amSTL - ANC
1 stop11h 59mAlaska Airlines
Fri 9/261:31 amANC - STL
1 stop10h 08mAlaska Airlines
Deal found 8/16$380
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Tue 9/233:35 pmSTL - ANC
1 stop9h 12mAlaska Airlines
Thu 10/21:59 amANC - STL
1 stop9h 40mAlaska Airlines
Deal found 8/16$386
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Sun 9/286:30 pmSTL - ANC
1 stop11h 17mAlaska Airlines
Mon 9/295:00 amANC - STL
2 stops15h 59mAlaska Airlines
Deal found 8/16$387
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Wed 9/246:00 amSTL - ANC
2 stops14h 38mAlaska Airlines
Fri 9/261:31 amANC - STL
1 stop10h 08mAlaska Airlines
Deal found 8/16$391
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Mon 9/296:00 amSTL - ANC
1 stop11h 59mAlaska Airlines
Mon 9/2912:34 amANC - STL
1 stop11h 05mAlaska Airlines
Deal found 8/16$410
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 9/186:30 pmSTL - ANC
1 stop11h 17mAlaska Airlines
Mon 9/221:59 amANC - STL
1 stop9h 40mAlaska Airlines
Deal found 8/16$416
This United Airlines deal was found by Cheapflights users on 8/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/171:39 pmSTL - FAI
1 stop8h 55mUnited Airlines
Wed 9/248:53 pmFAI - STL
1 stop10h 56mUnited Airlines
Deal found 8/18$437
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Tue 9/93:35 pmSTL - FAI
1 stop10h 12mAlaska Airlines
Tue 9/166:00 amFAI - STL
1 stop8h 34mAlaska Airlines
Deal found 8/16$449
This Delta deal was found by Cheapflights users on 8/18. 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.
Wed 9/171:26 pmSTL - FAI
2 stops14h 24mDelta
Wed 9/243:05 pmFAI - STL
2 stops15h 54mDelta
Deal found 8/18$451

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 August 18, 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. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 9/24

6:00 am-2:32 pm

1 stop11h 32m

Anchorage

Fri 9/26

1:31 am-2:39 pm

1 stop10h 08m

$356

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 9/12

6:10 am-8:48 pm

1 stop17h 38m

Anchorage

Thu 10/2

9:53 pm-9:26 am

1 stop8h 33m

$356

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 9/23

3:35 pm-10:47 pm

1 stop10h 12m

Anchorage

Mon 9/29

9:40 am-11:59 pm

1 stop11h 19m

$356

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 10/2

7:16 am-7:08 pm

1 stop14h 52m

Anchorage

Mon 10/6

7:52 pm-11:51 am

1 stop12h 59m

$356

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 9/23

3:35 pm-11:44 pm

1 stop11h 09m

Anchorage

Fri 9/26

1:59 am-2:39 pm

1 stop9h 40m

$356

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 9/10

2:01 pm-8:48 pm

1 stop9h 47m

Anchorage

Wed 10/1

9:53 pm-1:23 pm

1 stop12h 30m

$356

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 9/24

6:00 am-2:32 pm

1 stop11h 32m

Anchorage

Mon 9/29

8:41 am-11:59 pm

1 stop12h 18m

$356

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 10/14

9:43 am-6:44 pm

1 stop12h 01m

Anchorage

Fri 10/17

7:52 pm-8:53 am

1 stop10h 01m

$356

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 9/26

8:50 am-7:07 pm

1 stop13h 17m

Anchorage

Tue 9/30

9:53 pm-1:31 pm

1 stop12h 38m

$356

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 9/18

7:23 am-8:48 pm

1 stop16h 25m

Anchorage

Tue 9/23

9:53 pm-3:37 pm

1 stop14h 44m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 32 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, January is the cheapest month in which you can book a flight from St. Louis to Alaska (average of $456). Flying from St. Louis to Alaska in July is currently the most expensive (average of $643). 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 August 18, 2025.

When flying from St. Louis to Alaska, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 August 18, 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
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.
United Airlines
7.4
Good
8,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.

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 8h 55m. Alaska Airlines provides one of the quickest options available for as low as $437. There are 2890 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 United Airlines ($179), Delta ($179), and American Airlines ($179).

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

    The most popular route from St. Louis to Alaska is Lambert-St Louis - Fairbanks. You may also consider Lambert-St Louis - Anchorage 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, January is the cheapest month in which you can book a flight from St. Louis to Alaska (average of $456). Flying from St. Louis to Alaska in July is currently the most expensive (average of $643). 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$411Average$644FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$459Average$752FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$468Average$666FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$478Average$750FlexibilityNo cancel feeOn-time69%

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