Alaska

$160+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Jul 9 — Jul 161
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Cheap 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 9, 2026.

This Delta deal was found by Cheapflights users on 6/8. 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 8/155:00 pm
STL
-
ANC
1 stop9h 24m
Delta
Thu 8/2012:54 pm
ANC
-
STL
1 stop7h 32m
Delta
Deal found 6/8$319
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 9/117:36 pm
STL
-
ANC
2 stops13h 39m
Alaska Airlines
Thu 9/171:59 am
ANC
-
STL
1 stop19h 00m
Alaska Airlines
Deal found 6/9$323
This Delta deal was found by Cheapflights users on 6/9. 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 8/53:50 pm
STL
-
ANC
1 stop12h 09m
Delta
Wed 8/128:15 am
ANC
-
STL
2 stops13h 26m
Delta
Deal found 6/9$326
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 9/16:08 pm
STL
-
ANC
1 stop29h 43m
Alaska Airlines
Mon 9/71:29 am
ANC
-
STL
2 stops12h 41m
Alaska Airlines
Deal found 6/9$328
This Booking.com deal was found by Cheapflights users on 6/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:29 am
STL
-
ANC
1 stop18h 10m
Alaska Airlines
Fri 9/2512:18 pm
ANC
-
STL
1 stop8h 41m
Alaska Airlines
Deal found 6/9$364
This Delta deal was found by Cheapflights users on 6/8. 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 8/2710:33 am
STL
-
ANC
1 stop13h 47m
Delta
Mon 8/3112:54 pm
ANC
-
STL
1 stop7h 32m
Delta
Deal found 6/8$365
This Delta deal was found by Cheapflights users on 6/7. 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 8/66:20 am
STL
-
FAI
1 stop17h 29m
Delta
Mon 8/1710:00 pm
FAI
-
STL
1 stop9h 23m
Delta
Deal found 6/7$366
This Delta deal was found by Cheapflights users on 6/7. 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 8/55:34 pm
STL
-
FAI
1 stop30h 15m
Delta
Fri 8/1410:00 pm
FAI
-
STL
1 stop9h 23m
Delta
Deal found 6/7$367
This Delta deal was found by Cheapflights users on 6/6. 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 8/55:34 pm
STL
-
FAI
1 stop30h 15m
Delta
Sun 8/1610:00 pm
FAI
-
STL
1 stop22h 26m
Delta
Deal found 6/6$368
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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.
Sun 8/306:08 pm
STL
-
ANC
1 stop19h 10m
Alaska Airlines
Mon 9/76:17 pm
ANC
-
STL
2 stops19h 53m
Alaska Airlines
Deal found 6/8$372
This Delta deal was found by Cheapflights users on 6/7. 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 8/66:20 am
STL
-
FAI
1 stop17h 29m
Delta
Thu 8/2010:00 pm
FAI
-
STL
2 stops17h 55m
Delta
Deal found 6/7$372
This Delta deal was found by Cheapflights users on 6/7. 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 8/55:34 pm
STL
-
FAI
1 stop30h 15m
Delta
Wed 8/1910:00 pm
FAI
-
STL
2 stops19h 42m
Delta
Deal found 6/7$373

Find 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 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(Delta)

One-way from

$160
(Delta)

Popular in

June

Cheapest in

October

Average price

$703
Provider with most accurate pricing for Lambert-St Louis-Anchorage flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Anchorage flights.
From Lambert-St Louis to Alaska
One-way flight from Lambert-St Louis to Alaska
Highest demand for flights based on searches. 15% potential increase in price ($102 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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 9, 2026.
Use the filters below to find and compare flights from St. Louis to Alaska that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 9/1

6:08 pm-8:51 pm

1 stop29h 43m

Anchorage

Mon 9/7

1:29 am-5:10 pm

2 stops12h 41m

$328

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 8/10

6:00 am-7:00 pm

1 stop16h 00m

Anchorage

Wed 8/12

12:39 am-6:55 pm

1 stop15h 16m

$365
Quickest round-trip

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 8/27

2:32 pm-11:24 pm

1 stop11h 52m

Anchorage

Mon 8/31

12:54 pm-11:26 pm

1 stop7h 32m

$365

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 8/5

3:50 pm-12:59 am

1 stop12h 09m

Anchorage

Tue 8/11

12:39 am-6:55 pm

1 stop15h 16m

$371

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Sun 8/30

6:08 pm-10:18 am

1 stop19h 10m

Anchorage

Mon 9/7

6:17 pm-5:10 pm

2 stops19h 53m

$372

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Fri 8/21

7:36 pm-10:54 pm

1 stop30h 18m

Fairbanks

Fri 8/28

1:28 am-5:10 pm

2 stops12h 42m

$372

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Mon 8/10

11:13 am-12:39 am

2 stops16h 26m

Fairbanks

Sun 8/16

10:00 pm-6:55 pm

2 stops17h 55m

$377

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 7/3

10:20 am-9:16 pm

1 stop13h 56m

Anchorage

Tue 7/14

12:44 pm-11:22 pm

1 stop7h 38m

$394

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Fri 8/7

8:48 am-8:49 pm

1 stop15h 01m

Fairbanks

Mon 8/17

10:00 pm-3:10 pm

1 stop14h 10m

$395

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Mon 8/3

6:20 am-12:39 am

2 stops21h 19m

Fairbanks

Wed 8/5

10:00 pm-3:10 pm

1 stop14h 10m

$401

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 31 resultsSorted by cheapest first
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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, August is the cheapest month in which you can book a flight from St. Louis to Alaska (average of $240). 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.

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

How far ahead should I book a flight from St. Louis to Alaska?

The price you pay for your flight from St. Louis to Alaska may vary depending on when you book. For the best chance of a lower fare, look to book 11 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 9, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited 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.

Comfort

7.8

Boarding

8.1

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

Comfort

7.8

Boarding

8.1

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

Comfort

7.8

Boarding

8.1

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

Comfort

7.8

Boarding

8.1

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

Comfort

7.8

Boarding

8.1

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

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 16h. Alaska Airlines provides one of the quickest options available for as low as $365. 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 ($206), Alaska Airlines ($238), and United Airlines ($238).

  • What are the most popular routes from St. Louis to Alaska?

  • 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, August is the cheapest month in which you can book a flight from St. Louis to Alaska (average of $240). 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

Browse thousands of different options on Cheapflights for your next trip

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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.

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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$349Average$519FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$364Average$683FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$368Average$608FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$384Average$589FlexibilityNo cancel feeOn-time75%

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