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Alaska

$251+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$401
(Alaska Airlines)

One-way from

$251
(Delta)

Popular in

July

Cheapest in

November

Average price

$750
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. 13% potential increase in price ($95 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 June 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 June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 9/176:00 amSTL - FAI
1 stop9h 52mAlaska Airlines
Tue 10/72:05 amFAI - STL
1 stop9h 50mAlaska Airlines
Deal found 6/11$401
This Delta deal was found by Cheapflights users on 6/11. 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.
Wed 9/173:30 pmSTL - FAI
2 stops11h 47mDelta
Tue 10/71:30 amFAI - STL
2 stops13h 27mDelta
Deal found 6/11$412
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 9/243:35 pmSTL - ANC
1 stop10h 12mAlaska Airlines
Sun 9/281:59 amANC - STL
1 stop9h 40mAlaska Airlines
Deal found 6/10$450
This Delta deal was found by Cheapflights users on 6/11. 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.
Thu 9/186:59 pmSTL - ANC
2 stops18h 17mDelta
Tue 9/239:55 pmANC - STL
1 stop7h 49mDelta
Deal found 6/11$452
This Delta deal was found by Cheapflights users on 6/11. 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.
Thu 9/116:00 amSTL - JNU
2 stops15h 25mDelta
Tue 9/167:05 amJNU - STL
2 stops12h 57mDelta
Deal found 6/11$512
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/410:15 amSTL - ANC
1 stop12h 09mUnited Airlines
Wed 8/1311:59 pmANC - STL
1 stop9h 28mUnited Airlines
Deal found 6/11$524
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 9/113:35 pmSTL - JNU
2 stops8h 54mAlaska Airlines
Tue 9/167:00 amJNU - STL
1 stop7h 34mAlaska Airlines
Deal found 6/11$548
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 8/2410:08 amSTL - ANC
1 stop11h 33mAmerican Airlines
Sun 8/319:54 pmANC - STL
1 stop12h 18mAmerican Airlines
Deal found 6/10$571
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:30 pmSTL - FAI
1 stop11h 15mHawaiian Airlines
Thu 9/116:00 amFAI - STL
1 stop8h 34mHawaiian Airlines
Deal found 6/11$625
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:00 amSTL - FAI
2 stops13h 01mUnited Airlines
Wed 7/238:50 pmFAI - STL
1 stop10h 50mUnited Airlines
Deal found 6/11$654
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 11/66:01 amSTL - KTN
2 stops13h 43mAmerican Airlines
Sun 11/95:39 pmKTN - STL
2 stops12h 41mAmerican Airlines
Deal found 6/10$675
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 11/67:00 amSTL - KTN
1 stop15h 47mAlaska Airlines
Sun 11/98:57 amKTN - STL
1 stop12h 01mAlaska Airlines
Deal found 6/10$688

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 June 12, 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 8/27

2:25 pm-11:27 pm

1 stop12h 02m

Anchorage

Sun 8/31

5:19 pm-8:36 am

2 stops12h 17m

$454

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 8/27

6:00 am-12:19 pm

1 stop9h 19m

Anchorage

Sat 8/30

1:31 am-2:39 pm

1 stop10h 08m

$490

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Mon 9/8

3:35 pm-10:47 pm

1 stop10h 12m

Fairbanks

Sat 9/13

12:18 am-2:39 pm

1 stop11h 21m

$501

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 8/4

10:15 am-7:24 pm

1 stop12h 09m

Anchorage

Wed 8/13

11:59 pm-12:27 pm

1 stop9h 28m

$524

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Mon 8/4

2:23 pm-11:25 pm

1 stop12h 02m

Fairbanks

Tue 8/12

12:30 am-1:29 pm

1 stop9h 59m

$525

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Sun 8/24

10:08 am-6:41 pm

1 stop11h 33m

Anchorage

Sun 8/31

9:54 pm-1:12 pm

1 stop12h 18m

$571

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Fri 8/22

6:30 pm-2:45 am

1 stop11h 15m

Fairbanks

Thu 9/11

6:00 am-5:34 pm

1 stop8h 34m

$625

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 7/10

10:00 am-8:01 pm

2 stops13h 01m

Fairbanks

Wed 7/23

8:50 pm-10:40 am

1 stop10h 50m

$654

St. LouisJuneau

STL - JNU

STLJNU

Lambert-St Louis

Wed 8/6

6:41 am-7:52 pm

2 stops16h 11m

Juneau Intl

Sat 8/16

6:55 pm-4:51 pm

2 stops18h 56m

$723

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 6/24

1:00 pm-7:48 pm

3 stops33h 48m

Anchorage

Tue 7/15

8:55 pm-9:52 am

3 stops33h 57m

$732

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 24 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 $647). 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 June 12, 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.

Rainfall in Alaska by month

Plan your trip to Alaska by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Alaska ranges from 0.5 - 3.3 inches per month. August is typically the wettest month, when rainfall can reach 3.3 in. April is typically the driest time to visit Alaska when rainfall is around 0.5 in.

Temperature in Alaska by month

Plan your trip to Alaska by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Alaska, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 59.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.6 F).

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 June 12, 2025.
See what other customers who have flown with Alaska Airlines, Delta and Hawaiian Airlines from St. Louis to Alaska have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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 Delta ($251), American Airlines ($308), and Hawaiian Airlines ($318).

  • 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 - Juneau Intl or Lambert-St Louis - Fairbanks.

  • 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 $647). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$456Average$617FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$458Average$460FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$459Average$718FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$468Average$845FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$478Average$750FlexibilityNo cancel feeOn-time69%

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