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Alaska

$217+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
dic. 13 — dic. 201
sáb. 12/13
sáb. 12/20
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 noviembre 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$381
(Alaska Airlines)

One-way from

$217
(Delta)

Popular in

July

Cheapest in

October

Average price

$505
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. 12% potential increase in price ($92 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 noviembre 13, 2025.

This Delta deal was found by Cheapflights users on 11/12. 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.
sáb. 12/131:00 pmSTL - ANC
2 stops15h 53mDelta
dom. 12/145:55 amANC - STL
2 stops14h 34mDelta
Deal found 11/12$388
This Delta deal was found by Cheapflights users on 11/12. 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.
mié. 12/32:38 pmSTL - ANC
2 stops14h 16mDelta
lun. 12/85:55 amANC - STL
2 stops11h 52mDelta
Deal found 11/12$394
This Alaska Airlines deal was found by Cheapflights users on 11/12. 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.
sáb. 12/137:00 amSTL - ANC
1 stop20h 51mAlaska Airlines
dom. 12/146:05 amANC - STL
1 stop14h 54mAlaska Airlines
Deal found 11/12$461
This Alaska Airlines deal was found by Cheapflights users on 11/12. 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.
vie. 12/53:23 pmSTL - ANC
1 stop11h 21mAlaska Airlines
dom. 12/72:22 amANC - STL
1 stop9h 05mAlaska Airlines
Deal found 11/12$487
This Delta deal was found by Cheapflights users on 11/12. 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.
dom. 12/149:30 amSTL - FAI
2 stops17h 48mDelta
mar. 12/161:30 amFAI - STL
2 stops18h 59mDelta
Deal found 11/12$523
This Alaska Airlines deal was found by Cheapflights users on 11/12. 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.
dom. 12/143:23 pmSTL - FAI
1 stop12h 16mAlaska Airlines
mié. 12/174:04 pmFAI - STL
1 stop28h 55mAlaska Airlines
Deal found 11/12$535
This KAYAK deal was found by Cheapflights users on 11/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/257:00 amSTL - ANC
1 stop9h 20mAlaska Airlines
lun. 12/292:20 amANC - STL
1 stop11h 06mAlaska Airlines
Deal found 11/11$536
This Alaska Airlines deal was found by Cheapflights users on 11/11. 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.
lun. 12/227:00 amSTL - FAI
1 stop21h 21mAlaska Airlines
jue. 12/251:55 amFAI - STL
1 stop19h 04mAlaska Airlines
Deal found 11/11$576
This Alaska Airlines deal was found by Cheapflights users on 11/12. 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.
mar. 12/167:00 amSTL - FAI
2 stops31h 18mAlaska Airlines
sáb. 12/204:55 pmFAI - STL
2 stops28h 04mAlaska Airlines
Deal found 11/12$648

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 noviembre 13, 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

mié. 2/11

2:50 pm-11:56 pm

1 stop12h 06m

Fairbanks

mié. 2/18

5:51 am-1:51 pm

1 stop29h 00m

$363

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

jue. 2/5

2:50 pm-11:56 pm

1 stop12h 06m

Fairbanks

lun. 2/9

2:10 am-1:54 pm

1 stop8h 44m

$381

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

sáb. 12/13

6:00 am-4:34 pm

2 stops13h 34m

Anchorage

sáb. 12/13

12:30 am-4:49 pm

2 stops13h 19m

$388

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

jue. 2/5

3:31 pm-12:35 am

2 stops12h 04m

Fairbanks

lun. 2/9

1:30 am-9:38 pm

2 stops17h 08m

$392

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

mié. 12/3

2:38 pm-1:54 am

2 stops14h 16m

Anchorage

lun. 12/8

5:37 pm-9:50 am

2 stops13h 13m

$394

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

vie. 12/5

2:20 pm-10:42 pm

2 stops11h 22m

Anchorage

dom. 12/7

12:30 am-5:10 pm

2 stops13h 40m

$394

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

lun. 2/9

2:50 pm-2:48 am

1 stop14h 58m

Fairbanks

jue. 2/12

8:00 am-11:59 pm

1 stop12h 59m

$401

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

lun. 2/9

3:31 pm-12:35 am

2 stops12h 04m

Fairbanks

mié. 2/11

1:30 am-11:25 pm

2 stops18h 55m

$443

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

lun. 1/12

2:50 pm-11:56 pm

1 stop12h 06m

Fairbanks

lun. 1/19

10:46 pm-1:54 pm

2 stops12h 08m

$445

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

vie. 12/5

7:00 am-2:09 pm

1 stop10h 09m

Anchorage

lun. 12/8

10:20 am-11:59 pm

1 stop10h 39m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 23 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 $305). Flying from St. Louis to Alaska in November is currently the most expensive (average of $505). 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 noviembre 13, 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 noviembre 13, 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
11,288 reviews

Crew

8.5

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

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
11,288 reviews
Alaska Airlines
8.0
Very good
11,288 reviews

Crew

8.5

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

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
8,007 reviews
Alaska Airlines
8.0
Very good
11,288 reviews

Crew

8.5

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

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
9,017 reviews
Alaska Airlines
8.0
Very good
11,288 reviews

Crew

8.5

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

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
11,051 reviews
Alaska Airlines
8.0
Very good
11,288 reviews

Crew

8.5

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

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 12h 06m. Alaska Airlines provides one of the quickest options available for as low as $363. 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 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 $305). Flying from St. Louis to Alaska in November is currently the most expensive (average of $505). 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 noviembre 13, 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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