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Cheap flights from St. Louis to Alaska from $179

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 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Alaska

Cheap round-trip flights

Alaska Airlines Logo
3:35 pm - 10:47 pmSTL-ANC
10h 12m1 stop
Alaska Airlines Logo
1:59 am - 2:39 pmANC-STL
9h 40m1 stop
$356Alaska Airlines
Find Deal
mar., sep. 23 - lun., sep. 29
United Airlines Logo
11:30 am - 10:41 pmSTL-ANC
14h 11m2 stops
United Airlines Logo
9:04 pm - 10:49 amANC-STL
10h 45m1 stop
$361United Airlines
Find Deal
mar., sep. 23 - mar., sep. 30
Delta Logo
5:32 pm - 1:36 amSTL-ANC
11h 04m1 stop
Delta Logo
12:55 am - 6:02 pmANC-STL
14h 07m2 stops
$362Delta
Find Deal
mié., sep. 24 - dom., sep. 28
Delta Logo
7:40 am - 8:19 pmSTL-ANC
15h 39m2 stops
Delta Logo
12:55 am - 2:44 pmANC-STL
10h 49m2 stops
$368Delta
Find Deal
mar., sep. 23 - lun., sep. 29
Alaska Airlines Logo
6:00 am - 2:59 pmSTL-ANC
11h 59m1 stop
Alaska Airlines Logo
2:45 am - 11:59 pmANC-STL
18h 14m1 stop
$376Alaska Airlines
Find Deal
mié., sep. 24 - dom., sep. 28
Alaska Airlines Logo
6:30 pm - 2:45 amSTL-FAI
11h 15m1 stop
Alaska Airlines Logo
6:00 am - 12:03 amFAI-STL
15h 03m1 stop
$377Alaska Airlines
Find Deal
vie., sep. 26 - lun., oct. 6
Alaska Airlines Logo
6:30 pm - 8:39 pmSTL-FAI
29h 09m1 stop
Alaska Airlines Logo
6:00 am - 12:03 amFAI-STL
15h 03m1 stop
$379Alaska Airlines
Find Deal
vie., sep. 26 - lun., oct. 6
American Airlines Logo
7:23 am - 8:48 pmSTL-ANC
16h 25m1 stop
American Airlines Logo
9:53 pm - 9:26 amANC-STL
8h 33m1 stop
$516American Airlines
Find Deal
jue., sep. 18 - mar., sep. 23
American Airlines Logo
7:23 am - 8:48 pmSTL-ANC
16h 25m1 stop
American Airlines Logo
8:13 pm - 3:09 pmANC-STL
15h 56m1 stop
$670American Airlines
Find Deal
jue., sep. 18 - mar., sep. 23
United Airlines Logo
11:30 am - 7:48 pmSTL-FAI
11h 18m1 stop
United Airlines Logo
11:23 pm - 12:43 pmFAI-STL
10h 20m1 stop
$677United Airlines
Find Deal
mar., sep. 16 - sáb., sep. 20

Alaska Airlines flights from St. Louis to Alaska

Our best Alaska Airlines deals on St. Louis to Alaska flight tickets
Alaska Airlines
Sep 23
STL3:35 pmLambert-St Louis
10h 12m
1 stop
ANC10:47 pmAnchorage
Sep 29
ANC1:59 amAnchorage
9h 40m
1 stop
STL2:39 pmLambert-St Louis
$356
Find similar
Alaska Airlines
Sep 24
STL6:00 amLambert-St Louis
11h 59m
1 stop
ANC2:59 pmAnchorage
Sep 28
ANC2:45 amAnchorage
18h 14m
1 stop
STL11:59 pmLambert-St Louis
$376
Find similar
Alaska Airlines
Sep 26
STL6:30 pmLambert-St Louis
11h 15m
1 stop
FAI2:45 amFairbanks
Oct 6
FAI6:00 amFairbanks
15h 03m
1 stop
STL12:03 amLambert-St Louis
$377
Find similar

Delta flights from St. Louis to Alaska

Our best Delta deals on St. Louis to Alaska flight tickets
Delta
Sep 24
STL5:32 pmLambert-St Louis
11h 04m
1 stop
ANC1:36 amAnchorage
Sep 28
ANC12:55 amAnchorage
14h 07m
2 stops
STL6:02 pmLambert-St Louis
$362
Find similar
Delta
Sep 23
STL7:40 amLambert-St Louis
15h 39m
2 stops
ANC8:19 pmAnchorage
Sep 29
ANC12:55 amAnchorage
10h 49m
2 stops
STL2:44 pmLambert-St Louis
$368
Find similar
Delta
Sep 29
STL1:26 pmLambert-St Louis
15h 11m
2 stops
ANC1:37 amAnchorage
Oct 6
ANC9:45 pmAnchorage
8h 06m
1 stop
STL8:51 amLambert-St Louis
$381
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 septiembre 3, 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

mar. 9/23

3:35 pm-10:47 pm

1 stop10h 12m

Anchorage

lun. 9/29

1:59 am-2:39 pm

1 stop9h 40m

$356

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

mar. 9/23

11:30 am-10:41 pm

2 stops14h 11m

Anchorage

mar. 9/30

9:04 pm-10:49 am

1 stop10h 45m

$361

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

mié. 9/24

5:32 pm-1:36 am

1 stop11h 04m

Anchorage

dom. 9/28

12:55 am-6:02 pm

2 stops14h 07m

$362

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

mar. 9/23

7:40 am-8:19 pm

2 stops15h 39m

Anchorage

lun. 9/29

12:55 am-2:44 pm

2 stops10h 49m

$368

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

mié. 9/24

6:00 am-2:59 pm

1 stop11h 59m

Anchorage

dom. 9/28

2:45 am-11:59 pm

1 stop18h 14m

$376

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

vie. 9/26

6:30 pm-2:45 am

1 stop11h 15m

Fairbanks

lun. 10/6

6:00 am-12:03 am

1 stop15h 03m

$377

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

vie. 9/26

6:30 pm-8:39 pm

1 stop29h 09m

Fairbanks

lun. 10/6

6:00 am-12:03 am

1 stop15h 03m

$379

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

jue. 9/18

7:23 am-8:48 pm

1 stop16h 25m

Anchorage

mar. 9/23

9:53 pm-9:26 am

1 stop8h 33m

$516

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

jue. 9/18

7:23 am-8:48 pm

1 stop16h 25m

Anchorage

mar. 9/23

8:13 pm-3:09 pm

1 stop15h 56m

$670

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

mar. 9/16

11:30 am-7:48 pm

1 stop11h 18m

Fairbanks

sáb. 9/20

11:23 pm-12:43 pm

1 stop10h 20m

$677

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 November, 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 $624 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 $484 on momondo.

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

You could potentially save up to 23% 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

Direct flights

None
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 $388Free CancellationRating
7.9
7,972 reviews
Search Delta flights
United AirlinesPriceFrom $458Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $459Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $468Free CancellationRating
7.2
10,000 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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