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Alaska

$221+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$370
(Delta)

One-way from

$221
(American Airlines)

Popular in

July

Cheapest in

November

Average price

$479
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 ($102 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 October 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 October 14, 2025.

This Delta deal was found by Cheapflights users on 10/14. 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
Sun 12/712:30 amANC - STL
2 stops15h 40mDelta
Deal found 10/14$354
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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.
Wed 11/197:00 amSTL - ANC
1 stop18h 48mAlaska Airlines
Sat 11/222:20 amANC - STL
1 stop18h 34mAlaska Airlines
Deal found 10/12$420
This Delta deal was found by Cheapflights users on 10/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:34 amSTL - ANC
2 stops13h 08mDelta
Sun 11/1611:22 amANC - STL
2 stops10h 24mDelta
Deal found 10/11$426
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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 11/107:00 amSTL - FAI
1 stop22h 41mAlaska Airlines
Sat 11/154:10 pmFAI - STL
1 stop28h 49mAlaska Airlines
Deal found 10/13$426
This Alaska Airlines deal was found by Cheapflights users on 10/11. 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.
Fri 11/147:00 amSTL - ANC
1 stop18h 48mAlaska Airlines
Sat 11/152:23 amANC - STL
1 stop18h 36mAlaska Airlines
Deal found 10/11$440
This Delta deal was found by Cheapflights users on 10/13. 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 12/249:47 amSTL - FAI
2 stops18h 03mDelta
Sun 12/281:50 amFAI - STL
2 stops17h 26mDelta
Deal found 10/13$495
This Delta deal was found by Cheapflights users on 10/13. 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.
Mon 11/106:34 amSTL - FAI
2 stops20h 49mDelta
Fri 11/141:30 amFAI - STL
2 stops18h 52mDelta
Deal found 10/13$513
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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 12/227:00 amSTL - FAI
1 stop18h 26mAlaska Airlines
Fri 12/265:45 amFAI - STL
1 stop15h 14mAlaska Airlines
Deal found 10/13$556
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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 12/245:26 pmSTL - FAI
1 stop10h 49mAlaska Airlines
Mon 12/295:00 amFAI - STL
2 stops15h 59mAlaska Airlines
Deal found 10/13$580
This American Airlines deal was found by Cheapflights users on 10/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:58 pmSTL - JNU
2 stops17h 48mAmerican Airlines
Tue 11/186:55 amJNU - STL
2 stops13h 56mAmerican Airlines
Deal found 10/13$646
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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 11/117:00 amSTL - JNU
1 stop33h 27mAlaska Airlines
Tue 11/186:47 pmJNU - STL
1 stop17h 31mAlaska Airlines
Deal found 10/13$649
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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.
Tue 12/27:00 amSTL - KTN
2 stops28h 27mAlaska Airlines
Tue 12/95:52 pmKTN - STL
1 stop17h 35mAlaska Airlines
Deal found 10/12$718

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 October 14, 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 12/3

2:38 pm-1:54 am

2 stops14h 16m

Anchorage

Mon 12/8

5:37 pm-9:10 am

2 stops12h 33m

$354

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 11/14

7:00 am-2:14 pm

1 stop10h 14m

Anchorage

Sun 11/16

10:00 am-11:59 pm

1 stop10h 59m

$420

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 11/19

9:36 am-7:15 pm

1 stop12h 39m

Anchorage

Sun 11/23

8:21 pm-12:37 pm

1 stop13h 16m

$420

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Wed 2/4

2:50 pm-11:56 pm

1 stop12h 06m

Fairbanks

Sun 2/8

2:18 am-1:54 pm

1 stop8h 36m

$421

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 11/19

7:00 am-9:02 pm

2 stops17h 02m

Anchorage

Sat 11/22

1:59 am-11:54 pm

1 stop18h 55m

$425

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 11/14

6:34 am-4:42 pm

2 stops13h 08m

Anchorage

Sun 11/16

11:22 am-12:46 am

2 stops10h 24m

$426

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Mon 11/10

7:00 am-2:41 am

1 stop22h 41m

Fairbanks

Sat 11/15

4:10 pm-11:59 pm

1 stop28h 49m

$426

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 3/3

8:50 am-7:10 pm

1 stop13h 20m

Anchorage

Tue 3/10

6:00 am-12:37 am

2 stops15h 37m

$434

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 2/5

2:50 pm-7:17 pm

1 stop31h 27m

Fairbanks

Thu 2/12

7:00 am-11:56 pm

1 stop13h 56m

$439

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 2/5

2:50 pm-2:42 am

1 stop14h 52m

Fairbanks

Thu 2/12

10:00 am-11:56 pm

1 stop10h 56m

$441

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/13

Showing 1-10 of 24 results
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2
3

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 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 October 14, 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.

How much does it cost to fly round-trip from St. Louis to Alaska?

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 October 14, 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
11,080 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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
11,080 reviews
Alaska Airlines
8.0
Very good
11,080 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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
8.0
Very good
7,975 reviews
Alaska Airlines
8.0
Very good
11,080 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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
8,976 reviews
Alaska Airlines
8.0
Very good
11,080 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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
11,042 reviews
Alaska Airlines
8.0
Very good
11,080 reviews

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

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 10h 14m. Delta provides one of the quickest options available for as low as $420. 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 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$364Average$647FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$442Average$750FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$459Average$741FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$468Average$676FlexibilityNo cancel feeOn-time71%

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