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Cheap flights from St. Louis to Alaska from $201

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Alaska departing on 1/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Alaska

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:40 pm - 12:10 pm
STL
-
ANC
20h 30m2 stops
Delta Logo
8:22 pm - 9:06 am
ANC
-
STL
9h 44m1 stop
$390Delta
Fri, Feb 20 - Sat, Feb 21
Delta Logo
2:22 pm - 12:09 am
STL
-
ANC
12h 47m2 stops
Delta Logo
1:20 am - 12:25 am
ANC
-
STL
20h 05m2 stops
$393Delta
Fri, Feb 20 - Tue, Feb 24
Delta Logo
3:40 pm - 12:09 am
STL
-
ANC
11h 29m2 stops
Delta Logo
5:55 am - 11:25 pm
ANC
-
STL
14h 30m2 stops
$394Delta
Tue, Jan 13 - Tue, Jan 20
Delta Logo
6:40 pm - 12:10 pm
STL
-
ANC
20h 30m2 stops
Delta Logo
9:15 pm - 2:56 pm
ANC
-
STL
14h 41m1 stop
$395Delta
Fri, Feb 20 - Wed, Feb 25
Alaska Airlines Logo
3:19 pm - 12:03 am
STL
-
ANC
11h 44m1 stop
Alaska Airlines Logo
12:11 pm - 11:59 pm
ANC
-
STL
8h 48m1 stop
$400Alaska Airlines
Sun, Feb 15 - Sun, Feb 22
Alaska Airlines Logo
2:50 pm - 11:56 pm
STL
-
FAI
12h 06m1 stop
Alaska Airlines Logo
4:06 pm - 1:54 pm
FAI
-
STL
18h 48m1 stop
$401Alaska Airlines
Thu, Jan 22 - Mon, Jan 26
Alaska Airlines Logo
2:50 pm - 2:48 am
STL
-
FAI
14h 58m1 stop
Alaska Airlines Logo
12:13 pm - 1:54 pm
FAI
-
STL
22h 41m2 stops
$405Alaska Airlines
Thu, Jan 22 - Mon, Jan 26
Alaska Airlines Logo
2:50 pm - 12:39 am
STL
-
FAI
12h 49m2 stops
Alaska Airlines Logo
10:46 pm - 1:54 pm
FAI
-
STL
12h 08m2 stops
$410Alaska Airlines
Thu, Jan 22 - Mon, Jan 26
American Airlines Logo
11:41 am - 12:35 am
STL
-
FAI
15h 54m2 stops
American Airlines Logo
5:45 am - 11:59 pm
FAI
-
STL
15h 14m1 stop
$1,056American Airlines
Wed, Dec 31 - Sun, Jan 4
American Airlines Logo
11:41 am - 12:35 am
STL
-
FAI
15h 54m2 stops
American Airlines Logo
5:45 am - 10:56 pm
FAI
-
STL
14h 11m2 stops
$1,061American Airlines
Wed, Dec 31 - Sun, Jan 4

Delta flights from St. Louis to Alaska

Our best Delta deals on St. Louis to Alaska flight tickets
Delta
Feb 20
STL6:40 pmLambert-St Louis
20h 30m
2 stops
ANC12:10 pmAnchorage
Feb 21
ANC8:22 pmAnchorage
9h 44m
1 stop
STL9:06 amLambert-St Louis
$390
Find similar
Delta
Feb 20
STL2:22 pmLambert-St Louis
12h 47m
2 stops
ANC12:09 amAnchorage
Feb 25
ANC1:20 amAnchorage
13h 28m
2 stops
STL5:48 pmLambert-St Louis
$393
Find similar
Delta
Jan 13
STL3:40 pmLambert-St Louis
11h 29m
2 stops
ANC12:09 amAnchorage
Jan 20
ANC5:55 amAnchorage
14h 30m
2 stops
STL11:25 pmLambert-St Louis
$394
Find similar

Alaska Airlines flights from St. Louis to Alaska

Our best Alaska Airlines deals on St. Louis to Alaska flight tickets
Alaska Airlines
Feb 15
STL3:19 pmLambert-St Louis
9h 30m
1 stop
ANC9:49 pmAnchorage
Feb 24
ANC12:29 amAnchorage
10h 22m
1 stop
STL1:51 pmLambert-St Louis
$400
Find similar
Alaska Airlines
Feb 24
STL7:00 amLambert-St Louis
18h 15m
1 stop
FAI10:15 pmFairbanks
Feb 27
FAI2:18 amFairbanks
8h 33m
1 stop
STL1:51 pmLambert-St Louis
$401
Find similar
Alaska Airlines
Feb 24
STL7:00 amLambert-St Louis
18h 15m
1 stop
FAI10:15 pmFairbanks
Feb 28
FAI2:38 pmFairbanks
30h 21m
2 stops
STL11:59 pmLambert-St Louis
$405
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
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

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 2/20

6:40 pm-12:10 pm

2 stops20h 30m

Anchorage

Sat 2/21

8:22 pm-9:06 am

1 stop9h 44m

$390

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 2/20

2:22 pm-12:09 am

2 stops12h 47m

Anchorage

Tue 2/24

1:20 am-12:25 am

2 stops20h 05m

$393

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Tue 1/13

3:40 pm-12:09 am

2 stops11h 29m

Anchorage

Tue 1/20

5:55 am-11:25 pm

2 stops14h 30m

$394

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 2/20

6:40 pm-12:10 pm

2 stops20h 30m

Anchorage

Wed 2/25

9:15 pm-2:56 pm

1 stop14h 41m

$395

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Sun 2/15

3:19 pm-12:03 am

1 stop11h 44m

Anchorage

Sun 2/22

12:11 pm-11:59 pm

1 stop8h 48m

$400

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 1/22

2:50 pm-11:56 pm

1 stop12h 06m

Fairbanks

Mon 1/26

4:06 pm-1:54 pm

1 stop18h 48m

$401

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 1/22

2:50 pm-2:48 am

1 stop14h 58m

Fairbanks

Mon 1/26

12:13 pm-1:54 pm

2 stops22h 41m

$405

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 1/22

2:50 pm-12:39 am

2 stops12h 49m

Fairbanks

Mon 1/26

10:46 pm-1:54 pm

2 stops12h 08m

$410

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Wed 12/31

11:41 am-12:35 am

2 stops15h 54m

Fairbanks

Sun 1/4

5:45 am-11:59 pm

1 stop15h 14m

$1,056

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Wed 12/31

11:41 am-12:35 am

2 stops15h 54m

Fairbanks

Sun 1/4

5:45 am-10:56 pm

2 stops14h 11m

$1,061

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Alaska from

How to get the cheapest flight ticket from St. Louis to Alaska

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Alaska?

If you don’t want to visit Alaska in October, then you should wait until January to fly from St. Louis, when ticket prices are also cheap, with an average price of $505.

What is the cheapest day to depart on your flight to Alaska?

The cheapest day to depart from St. Louis to Alaska is on a Monday. Travelers who choose to depart for Alaska on a Monday will often find tickets for as low as $650. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Alaska for around $792.

What is the cheapest time of day to depart on your flight to Alaska?

Our data shows that the cheapest St. Louis to Alaska flights are usually those with departure times in the afternoon. Our users have found flights to Alaska in the afternoon for as low as $700. At noon is when there is more demand to fly to Alaska, so prices are often more expensive at around $738 per ticket.

How far in advance should I book a flight to Alaska?

You are more likely to see cheaper flights to Alaska from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Alaska for around $622 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Alaska from St. Louis for as low as $385 on momondo.

Can stopping save me money on St. Louis to Alaska flights?

You could potentially save up to 18% on your flight if you consider stops on a St. Louis to Alaska flight.

Cheap St. Louis to Alaska flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Alaska

Fastest flight time

9h 19m

Direct flights

None
The fastest flight from St. Louis to Alaska takes 9h 19m
There are no direct flights from St. Louis to Alaska. There are no popular flight routes from St. Louis to Alaska.
Search flight deals

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Alaska?

    Prices for flights from Lambert-St Louis Airport to Alaska refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Alaska?

  • How old do you have to be to fly from Lambert-St Louis Airport to Alaska?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Alaska.

  • What documentation or ID do you need to fly to Alaska?

    The travel and health documents you'll need for your trip to Alaska may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Alaska. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Alaska

Compare and see reviews for airlines that fly from St. Louis to Alaska with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $362Free CancellationRating
7.9
8,005 reviews
Search Delta flights
Alaska AirlinesPriceFrom $384Free CancellationRating
8.0
11,477 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $442Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
American AirlinesPriceFrom $468Free CancellationRating
7.2
11,055 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Alaska?

It is quick and easy to find St. Louis to Alaska flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Alaska that suits you.

Can I find flights from St. Louis to Alaska with flexible booking policies on momondo?

Flights from St. Louis to Alaska with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Alaska?

momondo provides multiple filters to help you find the best flight to Alaska from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Alaska right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Alaska, momondo offers a useful price alert feature which will track prices for flights to Alaska from St. Louis and alert you when they change.

An easier way to manage your Alaska trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to Alaska

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