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Alaska

$231+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$395
(Delta)

One-way from

$231

Popular in

July

Cheapest in

November

Average price

$776
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 ($91 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 July 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 July 3, 2025.

This Delta deal was found by Cheapflights users on 7/2. 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 8/2011:23 amSTL - FAI
2 stops16h 27mDelta
Wed 8/2710:07 pmFAI - STL
1 stop22h 17mDelta
Deal found 7/2$395
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 - ANC
1 stop9h 12mAlaska Airlines
Mon 9/151:59 amANC - STL
1 stop9h 42mAlaska Airlines
Deal found 7/2$474
This Delta deal was found by Cheapflights users on 7/2. 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.
Tue 9/96:00 amSTL - ANC
2 stops17h 17mDelta
Tue 9/165:15 pmANC - STL
2 stops12h 22mDelta
Deal found 7/2$486
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 8/2710:08 amSTL - ANC
1 stop15h 57mAmerican Airlines
Tue 9/29:54 pmANC - STL
1 stop14h 58mAmerican Airlines
Deal found 7/1$501
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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 8/157:32 pmSTL - FAI
2 stops16h 33mAlaska Airlines
Fri 8/229:53 pmFAI - STL
2 stops13h 46mAlaska Airlines
Deal found 7/1$510
This Hawaiian Airlines deal was found by Cheapflights users on 7/3. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/213:35 pmSTL - ANC
1 stop10h 12mHawaiian Airlines
Mon 8/254:40 amANC - STL
1 stop9h 54mHawaiian Airlines
Deal found 7/3$532
This Hawaiian Airlines deal was found by Cheapflights users on 7/3. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/157:32 pmSTL - FAI
1 stop10h 04mHawaiian Airlines
Fri 8/226:00 amFAI - STL
1 stop8h 34mHawaiian Airlines
Deal found 7/3$542
This Delta deal was found by Cheapflights users on 7/2. 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 8/167:35 amSTL - JNU
2 stops13h 36mDelta
Fri 8/227:05 amJNU - STL
2 stops24h 44mDelta
Deal found 7/2$623
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 8/163:24 pmSTL - JNU
2 stops9h 06mAlaska Airlines
Wed 8/277:00 amJNU - STL
1 stop7h 34mAlaska Airlines
Deal found 7/2$638
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 7/287:32 pmSTL - KTN
2 stops15h 43mAlaska Airlines
Thu 7/315:25 pmKTN - STL
2 stops22h 10mAlaska Airlines
Deal found 7/2$732
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Mon 7/283:24 pmSTL - KTN
1 stop7h 20mAmerican Airlines
Thu 7/3111:52 amKTN - STL
1 stop9h 07mAmerican Airlines
Deal found 7/2$777

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 July 3, 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

Wed 8/20

11:23 am-12:50 am

2 stops16h 27m

Fairbanks

Sun 8/24

10:07 pm-11:24 pm

1 stop22h 17m

$395

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 9/9

3:35 pm-9:47 pm

1 stop9h 12m

Anchorage

Sun 9/14

12:34 am-2:41 pm

1 stop11h 07m

$474

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 9/9

6:00 am-8:17 pm

2 stops17h 17m

Anchorage

Tue 9/16

5:15 pm-8:37 am

2 stops12h 22m

$486

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 8/27

10:08 am-11:05 pm

1 stop15h 57m

Anchorage

Tue 9/2

9:54 pm-3:52 pm

1 stop14h 58m

$501

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Fri 8/15

7:32 pm-9:05 am

2 stops16h 33m

Fairbanks

Fri 8/22

9:53 pm-2:39 pm

2 stops13h 46m

$510

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 8/21

3:35 pm-10:47 pm

1 stop10h 12m

Anchorage

Mon 8/25

4:40 am-5:34 pm

1 stop9h 54m

$532

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Fri 8/15

7:32 pm-2:36 am

1 stop10h 04m

Fairbanks

Thu 8/21

12:18 am-2:39 pm

1 stop11h 21m

$542

St. LouisJuneau

STL - JNU

STLJNU

Lambert-St Louis

Sat 8/16

7:35 am-6:11 pm

2 stops13h 36m

Juneau Intl

Tue 8/26

7:05 am-10:37 am

2 stops24h 32m

$623

St. LouisJuneau

STL - JNU

STLJNU

Lambert-St Louis

Sat 8/16

3:24 pm-9:30 pm

2 stops9h 06m

Juneau Intl

Wed 8/27

7:00 am-5:34 pm

1 stop7h 34m

$638

St. LouisKetchikan

STL - KTN

STLKTN

Lambert-St Louis

Mon 7/28

7:32 pm-8:15 am

2 stops15h 43m

Ketchikan

Thu 7/31

5:25 pm-6:35 pm

2 stops22h 10m

$732

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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, 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 $648). 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 July 3, 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 July 3, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian 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

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 Alaska Airlines ($231), American Airlines ($257), and Delta ($276).

  • 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, 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 $648). 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 5 airlines flying from St. Louis to Alaska

Discover the top 5 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$430Average$640FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$458Average$460FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$459Average$708FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$468Average$687FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$478Average$750FlexibilityNo cancel feeOn-time69%

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