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Alaska

$238+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$381
(KAYAK)

One-way from

$238
(Delta)

Popular in

July

Cheapest in

November

Average price

$458
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. 15% potential increase in price ($110 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 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 6, 2025.

This Delta deal was found by Cheapflights users on 11/4. 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 12/46:15 amSTL - FAI
2 stops21h 03mDelta
Fri 12/121:30 amFAI - STL
2 stops20h 20mDelta
Deal found 11/4$392
This Delta deal was found by Cheapflights users on 11/6. 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 12/32:38 pmSTL - ANC
2 stops14h 16mDelta
Wed 12/1012:30 amANC - STL
2 stops13h 19mDelta
Deal found 11/6$394
This Delta deal was found by Cheapflights users on 11/4. 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 12/38:05 pmSTL - FAI
2 stops31h 13mDelta
Fri 12/121:30 amFAI - STL
2 stops20h 20mDelta
Deal found 11/4$394
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/47:00 amSTL - FAI
1 stop20h 39mAlaska Airlines
Sun 12/145:00 amFAI - STL
2 stops15h 59mAlaska Airlines
Deal found 11/4$405
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/57:00 amSTL - FAI
2 stops19h 48mAlaska Airlines
Sun 12/145:00 amFAI - STL
2 stops15h 59mAlaska Airlines
Deal found 11/4$410
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/47:00 amSTL - FAI
1 stop20h 39mAlaska Airlines
Wed 12/174:04 pmFAI - STL
1 stop28h 55mAlaska Airlines
Deal found 11/4$434
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/47:00 amSTL - FAI
1 stop20h 39mAlaska Airlines
Sat 12/135:04 pmFAI - STL
2 stops27h 55mAlaska Airlines
Deal found 11/4$435
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/57:00 amSTL - FAI
2 stops19h 48mAlaska Airlines
Wed 12/174:04 pmFAI - STL
1 stop28h 55mAlaska Airlines
Deal found 11/4$439
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/57:00 amSTL - FAI
2 stops19h 48mAlaska Airlines
Sat 12/138:54 pmFAI - STL
2 stops24h 05mAlaska Airlines
Deal found 11/4$440
This Delta deal was found by Cheapflights users on 11/6. 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 12/61:00 pmSTL - ANC
2 stops15h 54mDelta
Sat 12/138:47 pmANC - STL
1 stop10h 58mDelta
Deal found 11/6$446
This Delta deal was found by Cheapflights users on 11/5. 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 12/35:34 pmSTL - ANC
1 stop10h 23mDelta
Sun 12/712:30 amANC - STL
2 stops15h 40mDelta
Deal found 11/5$448
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/47:00 amSTL - FAI
1 stop20h 39mAlaska Airlines
Mon 12/154:04 pmFAI - STL
1 stop19h 23mAlaska Airlines
Deal found 11/4$460

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 6, 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

Sat 12/6

10:45 am-10:42 pm

2 stops14h 57m

Anchorage

Fri 12/12

12:30 am-4:49 pm

2 stops13h 19m

$394

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 12/11

2:38 pm-1:53 am

2 stops14h 15m

Anchorage

Sun 12/14

5:37 pm-9:10 am

2 stops12h 33m

$394

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 12/4

2:20 pm-10:42 pm

2 stops11h 22m

Anchorage

Thu 12/11

5:55 am-11:29 pm

2 stops14h 34m

$394

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 12/3

2:38 pm-1:54 am

2 stops14h 16m

Anchorage

Thu 12/11

5:37 pm-9:10 am

2 stops12h 33m

$394

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Fri 12/5

7:00 am-12:39 am

1 stop20h 39m

Fairbanks

Sun 12/14

5:00 am-11:59 pm

2 stops15h 59m

$405

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Wed 2/4

2:50 pm-11:56 pm

1 stop12h 06m

Fairbanks

Thu 2/5

2:10 am-1:54 pm

1 stop8h 44m

$410

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Fri 1/23

2:50 pm-11:56 pm

1 stop12h 06m

Fairbanks

Tue 1/27

2:10 am-1:54 pm

1 stop8h 44m

$430

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 1/27

2:50 pm-12:53 am

1 stop13h 03m

Anchorage

Mon 2/2

2:10 am-1:54 pm

1 stop8h 44m

$459

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Fri 12/5

7:00 am-12:39 am

1 stop20h 39m

Fairbanks

Mon 12/15

4:04 pm-2:27 pm

1 stop19h 23m

$460

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 1/6

5:26 pm-8:51 pm

1 stop30h 25m

Anchorage

Mon 1/12

12:38 am-1:54 pm

1 stop10h 16m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 34 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 $315). Flying from St. Louis to Alaska in April is currently the most expensive (average of $468). 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 6, 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 15% 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 6, 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
11,247 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,247 reviews
Alaska Airlines
8.0
Very good
11,247 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
8,001 reviews
Alaska Airlines
8.0
Very good
11,247 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
9,007 reviews
Alaska Airlines
8.0
Very good
11,247 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,040 reviews
Alaska Airlines
8.0
Very good
11,247 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 14h 57m. Delta provides one of the quickest options available for as low as $394. 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 Delta ($238), Alaska Airlines ($249), and United Airlines ($251).

  • 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 - Ketchikan.

  • 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 $315). Flying from St. Louis to Alaska in April is currently the most expensive (average of $468). 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$362Average$648FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$442Average$750FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$459Average$746FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$468Average$669FlexibilityNo cancel feeOn-time71%

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