HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Alaska

$239+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Alaska with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 September 15, 2025.

Round-trip from

$404
(flugladen.de)

One-way from

$239
(American Airlines)

Popular in

July

Cheapest in

November

Average price

$514
From Lambert-St Louis to Alaska
Search Deals
One-way flight from Lambert-St Louis to Alaska
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 September 15, 2025.

This flugladen.de deal was found by Cheapflights users on 9/12. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/287:00 amSTL - ANC
1 stop10h 14mAlaska Airlines
Mon 11/32:23 amANC - STL
1 stop9h 55mAlaska Airlines
Deal found 9/12$404
This Delta deal was found by Cheapflights users on 9/12. 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.
Tue 10/281:30 pmSTL - ANC
2 stops15h 29mDelta
Mon 11/312:30 amANC - STL
2 stops12h 40mDelta
Deal found 9/12$428
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/94:50 pmSTL - ANC
1 stop8h 52mUnited Airlines
Sun 10/129:04 pmANC - STL
1 stop10h 45mUnited Airlines
Deal found 9/12$436
This Delta deal was found by Cheapflights users on 9/13. 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.
Thu 11/612:14 pmSTL - ANC
1 stop9h 17mDelta
Tue 11/119:45 pmANC - STL
1 stop8h 10mDelta
Deal found 9/13$476
This Delta deal was found by Cheapflights users on 9/12. 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.
Thu 10/912:14 pmSTL - ANC
1 stop9h 17mDelta
Sat 10/1112:30 amANC - STL
2 stops11h 02mDelta
Deal found 9/12$486
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/217:00 amSTL - FAI
1 stop20h 26mAlaska Airlines
Sat 11/222:33 amFAI - STL
1 stop18h 21mAlaska Airlines
Deal found 9/14$487
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 9/272:01 pmSTL - ANC
1 stop9h 47mAmerican Airlines
Sun 10/59:53 pmANC - STL
1 stop15h 11mAmerican Airlines
Deal found 9/13$516
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 9/276:00 amSTL - ANC
2 stops21h 25mAlaska Airlines
Sat 10/46:00 amANC - STL
1 stop15h 03mAlaska Airlines
Deal found 9/13$521
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 9/276:00 amSTL - ANC
2 stops21h 25mAlaska Airlines
Sun 10/54:34 pmANC - STL
1 stop28h 29mAlaska Airlines
Deal found 9/13$523
This Delta deal was found by Cheapflights users on 9/13. 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.
Tue 10/218:53 amSTL - JNU
2 stops11h 40mDelta
Fri 10/247:07 amJNU - STL
2 stops14h 17mDelta
Deal found 9/13$560
This Delta deal was found by Cheapflights users on 9/13. 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 11/172:21 pmSTL - FAI
2 stops13h 09mDelta
Mon 11/241:30 amFAI - STL
2 stops18h 53mDelta
Deal found 9/13$632
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 11/177:00 amSTL - FAI
1 stop17h 58mAlaska Airlines
Tue 11/255:35 amFAI - STL
1 stop15h 19mAlaska Airlines
Deal found 9/13$635

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 September 15, 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

Tue 10/28

7:00 am-9:02 pm

2 stops17h 02m

Anchorage

Mon 11/3

2:23 am-3:18 pm

1 stop9h 55m

$421

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 11/10

5:34 pm-12:56 am

1 stop10h 22m

Anchorage

Mon 12/8

9:45 pm-9:10 am

1 stop8h 25m

$476

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Mon 11/10

5:34 pm-12:56 am

1 stop10h 22m

Anchorage

Sat 12/6

9:45 pm-9:10 am

1 stop8h 25m

$476

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 11/7

4:14 pm-10:48 pm

1 stop9h 34m

Anchorage

Mon 11/10

11:05 am-11:59 pm

1 stop9h 54m

$476

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 11/6

12:14 pm-6:31 pm

1 stop9h 17m

Anchorage

Wed 11/12

6:05 am-4:49 pm

1 stop7h 44m

$476

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Fri 11/21

7:00 am-10:04 pm

1 stop18h 04m

Fairbanks

Sat 11/22

1:46 am-11:54 pm

1 stop19h 08m

$487

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Thu 10/9

5:00 am-10:42 pm

2 stops20h 42m

Anchorage

Sun 10/12

9:04 pm-10:49 am

1 stop10h 45m

$493

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Sat 9/27

2:01 pm-8:48 pm

1 stop9h 47m

Anchorage

Sun 10/5

9:53 pm-4:04 pm

1 stop15h 11m

$516

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Sat 9/27

6:00 am-12:25 am

2 stops21h 25m

Anchorage

Sat 10/4

6:00 am-12:03 am

1 stop15h 03m

$521

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Sat 9/27

6:00 am-12:25 am

2 stops21h 25m

Anchorage

Sun 10/5

4:34 pm-12:03 am

1 stop28h 29m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 28 results
1
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, 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 $642). 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 September 15, 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 September 15, 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
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 22m. Alaska Airlines provides one of the quickest options available for as low as $476. 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 American Airlines ($239), Delta ($244), and United Airlines ($344).

  • 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 - Ketchikan.

  • 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 $642). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Alaska

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Las Vegas flights
St. Louis to LaGuardia flights
St. Louis to John F Kennedy Intl flights
Kansas City to John F Kennedy Intl flights
Kansas City to Newark flights
Kansas City to Las Vegas flights
St. Louis to Newark flights
Kansas City to LaGuardia flights
St. Louis to Dallas/Fort Worth flights
St. Louis to Sky Harbor Intl flights
St. Louis to Denver flights
St. Louis to Orlando flights
Kansas City to Seattle flights
Kansas City to Denver flights
St. Louis to Seattle flights
Kansas City to O'Hare Intl flights
Kansas City to Los Angeles flights
Kansas City to Sky Harbor Intl flights
Kansas City to Orlando flights
St. Louis to Miami flights
St. Louis to Boston flights
Kansas City to Hobby flights
Kansas City to Miami flights
Kansas City to Atlanta flights
St. Louis to Dulles Intl flights
St. Louis to Atlanta flights
St. Louis to Los Angeles flights
Kansas City to Boston flights
Kansas City to Dallas/Fort Worth flights
Kansas City to George Bush Intcntl flights
St. Louis to Reagan-National flights
Kansas City to Dulles Intl flights
St. Louis to San Francisco flights
St. Louis to Baltimore flights
St. Louis to Hobby flights
Kansas City to Minneapolis flights
St. Louis to Fort Myers flights
St. Louis to Salt Lake City flights
Kansas City to Fort Lauderdale flights
Kansas City to San Francisco flights
St. Louis to O'Hare Intl flights
Kansas City to Philadelphia flights
Kansas City to Portland flights
Kansas City to Honolulu flights
St. Louis to Tampa flights
St. Louis to New Orleans flights
Kansas City to Tampa flights
St. Louis to Honolulu flights
St. Louis to Minneapolis flights
St. Louis to George Bush Intcntl flights

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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$388Average$644FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$458Average$750FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$459Average$786FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$468Average$657FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.