What is the cheapest airline that flies from Lambert-St Louis to Alaska?

United Airlines, American Airlines, and Alaska Airlines are the most popular carriers operating from Lambert-St Louis to Alaska

What airlines fly to Alaska?

Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Alaska from St. Louis according to our data. Alaska Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Alaska. Keep in mind that there are 5 different airlines that fly to Alaska on a routine basis, so you have a few additional options to choose from.

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?

As of September 2026, there are 5 operators available to choose from 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.

$213 Cheap Flights from St. Louis to Alaska in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Alaska

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:32 am - 7:17 pmSTL Lambert-St Louis-ANC Anchorage

15h 45m1 stop Dallas/Fort Worth

8:22 pm - 9:20 amANC Anchorage-STL Lambert-St Louis

9h 58m1 stop Dallas/Fort Worth

$425American Airlines

Thu, Oct 8 - Sun, Oct 11

5:00 am - 8:49 pmSTL Lambert-St Louis-ANC Anchorage

18h 49m1 stop Chicago O'Hare Intl

8:22 pm - 5:02 pmANC Anchorage-STL Lambert-St Louis

17h 40m1 stop Dallas/Fort Worth

$425American Airlines

Sun, Oct 4 - Mon, Oct 19

7:02 am - 8:51 pmSTL Lambert-St Louis-ANC Anchorage

16h 49m1 stop Seattle/Tacoma Intl

7:05 am - 11:59 pmANC Anchorage-STL Lambert-St Louis

13h 54m1 stop Seattle/Tacoma Intl

$425Alaska Airlines

Tue, Oct 6 - Tue, Oct 27

6:29 am - 8:39 pmSTL Lambert-St Louis-ANC Anchorage

17h 10m1 stop Seattle/Tacoma Intl

2:29 am - 11:59 pmANC Anchorage-STL Lambert-St Louis

18h 30m1 stop Seattle/Tacoma Intl

$425Alaska Airlines

Thu, Oct 1 - Mon, Oct 5

6:00 am - 6:57 pmSTL Lambert-St Louis-ANC Anchorage

15h 57m1 stop Atlanta Hartsfield-Jackson

8:25 pm - 9:09 amANC Anchorage-STL Lambert-St Louis

9h 44m1 stop Atlanta Hartsfield-Jackson

$425Delta

Sat, Oct 10 - Sat, Oct 17

12:30 pm - 9:03 pmSTL Lambert-St Louis-ANC Anchorage

11h 33m1 stop Minneapolis St Paul

9:55 pm - 10:38 amANC Anchorage-STL Lambert-St Louis

9h 43m1 stop Minneapolis St Paul

$425Delta

Mon, Jan 11 - Wed, Jan 13

11:35 am - 7:57 pmSTL Lambert-St Louis-ANC Anchorage

11h 22m1 stop Chicago O'Hare Intl

11:45 pm - 12:40 pmANC Anchorage-STL Lambert-St Louis

9h 55m1 stop Denver Intl

$425United Airlines

Mon, Oct 12 - Fri, Oct 16

1:29 pm - 7:57 pmSTL Lambert-St Louis-ANC Anchorage

9h 28m1 stop Chicago O'Hare Intl

8:59 pm - 10:48 amANC Anchorage-STL Lambert-St Louis

10h 49m1 stop Chicago O'Hare Intl

$425United Airlines

Mon, Oct 12 - Sat, Oct 17

5:40 am - 7:17 pmSTL Lambert-St Louis-ANC Anchorage

16h 37m1 stop Dallas/Fort Worth

8:22 pm - 9:20 amANC Anchorage-STL Lambert-St Louis

9h 58m1 stop Dallas/Fort Worth

$425American Airlines

Mon, Oct 5 - Mon, Oct 19

7:02 am - 2:45 pmSTL Lambert-St Louis-ANC Anchorage

10h 43m1 stop Seattle/Tacoma Intl

7:42 am - 11:59 pmANC Anchorage-STL Lambert-St Louis

13h 17m2 stops Fairbanks Seattle/Tacoma Intl

$430Alaska Airlines

Tue, Oct 6 - Tue, Oct 27

Cheap last minute flights

Enter your travel dates to find the best prices.

6:29 am - 2:18 pmSTL Lambert-St Louis-ANC Anchorage

10h 49m1 stop Seattle/Tacoma Intl

5:07 am - 11:59 pmANC Anchorage-STL Lambert-St Louis

15h 52m1 stop Seattle/Tacoma Intl

$583Alaska Airlines

Sat, Sep 12 - Sun, Sep 20

6:29 am - 5:24 pmSTL Lambert-St Louis-ANC Anchorage

13h 55m2 stops Seattle/Tacoma Intl Portland

1:59 am - 2:21 pmANC Anchorage-STL Lambert-St Louis

9h 22m1 stop Seattle/Tacoma Intl

$588Alaska Airlines

Sat, Sep 12 - Sat, Sep 19

8:00 am - 8:15 pmSTL Lambert-St Louis-ANC Anchorage

15h 15m2 stops Salt Lake City Seattle/Tacoma Intl

1:32 am - 7:58 pmANC Anchorage-STL Lambert-St Louis

15h 26m2 stops Seattle/Tacoma Intl Atlanta Hartsfield-Jackson

$595Delta

Sat, Sep 12 - Sat, Sep 19

6:29 am - 8:55 pmSTL Lambert-St Louis-FAI Fairbanks

17h 26m1 stop Seattle/Tacoma Intl

5:30 am - 11:59 pmFAI Fairbanks-STL Lambert-St Louis

15h 29m1 stop Seattle/Tacoma Intl

$624Alaska Airlines

Tue, Sep 15 - Mon, Sep 21

6:15 am - 4:27 pmSTL Lambert-St Louis-ANC Anchorage

13h 12m2 stops Minneapolis St Paul Seattle/Tacoma Intl

10:10 pm - 4:32 pmANC Anchorage-STL Lambert-St Louis

15h 22m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

$770Delta

Fri, Sep 11 - Fri, Sep 18

11:21 am - 9:00 pmSTL Lambert-St Louis-ANC Anchorage

12h 39m1 stop Minneapolis St Paul

10:10 pm - 4:32 pmANC Anchorage-STL Lambert-St Louis

15h 22m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

$785Delta

Fri, Sep 11 - Fri, Sep 18

7:21 am - 8:49 pmSTL Lambert-St Louis-ANC Anchorage

16h 28m1 stop Chicago O'Hare Intl

9:54 pm - 10:18 amANC Anchorage-STL Lambert-St Louis

9h 24m1 stop Chicago O'Hare Intl

$951American Airlines

Fri, Sep 11 - Fri, Sep 18

6:29 am - 3:04 pmSTL Lambert-St Louis-ANC Anchorage

11h 35m1 stop Seattle/Tacoma Intl

8:20 pm - 12:15 pmANC Anchorage-STL Lambert-St Louis

12h 55m1 stop Dallas/Fort Worth

$1,140American Airlines

Fri, Sep 11 - Fri, Sep 18

7:00 am - 9:29 pmSTL Lambert-St Louis-ANC Anchorage

17h 29m2 stops Newark Washington, D.C. Reagan-National

11:09 pm - 12:40 pmANC Anchorage-STL Lambert-St Louis

10h 31m1 stop Denver Intl

$2,759United Airlines

Sat, Sep 12 - Mon, Sep 14

9:23 am - 9:29 pmSTL Lambert-St Louis-ANC Anchorage

15h 06m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

11:09 pm - 3:38 pmANC Anchorage-STL Lambert-St Louis

13h 29m2 stops Denver Intl Chicago O'Hare Intl

$3,937United Airlines

Sat, Sep 12 - Mon, Sep 14

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United Airlines flights from St. Louis to Alaska

Our best United Airlines deals on St. Louis to Alaska flight tickets

United Airlines

Oct 12

STL11:35 amLambert-St Louis

11h 22m

1 stop

ANC7:57 pmAnchorage

Oct 16

ANC11:45 pmAnchorage

12h 58m

2 stops

STL3:43 pmLambert-St Louis

$432

United Airlines

Dec 10

STL2:50 pmLambert-St Louis

10h 52m

1 stop

ANC10:42 pmAnchorage

Dec 12

ANC12:07 amAnchorage

9h 36m

1 stop

STL12:43 pmLambert-St Louis

$445

United Airlines

Dec 10

STL2:50 pmLambert-St Louis

10h 52m

1 stop

ANC10:42 pmAnchorage

Dec 12

ANC12:07 amAnchorage

15h 09m

2 stops

STL6:16 pmLambert-St Louis

$455

Alaska Airlines flights from St. Louis to Alaska

Our best Alaska Airlines deals on St. Louis to Alaska flight tickets

Alaska Airlines

Nov 2

STL7:00 amLambert-St Louis

19h 45m

1 stop

ANC11:45 pmAnchorage

Nov 2

ANC2:55 amAnchorage

8h 30m

1 stop

STL2:25 pmLambert-St Louis

$448

Alaska Airlines

Feb 10

STL3:54 pmLambert-St Louis

12h 52m

1 stop

ANC1:46 amAnchorage

Feb 15

ANC11:41 amAnchorage

9h 03m

1 stop

STL11:44 pmLambert-St Louis

$454

Alaska Airlines

Nov 2

STL7:00 amLambert-St Louis

31h 06m

1 stop

ANC11:06 amAnchorage

Nov 3

ANC5:28 pmAnchorage

17h 57m

1 stop

STL2:25 pmLambert-St Louis

$456

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisAnchorage

STL Lambert-St Louis - ANC Anchorage

STLANC

Lambert-St Louis

Thu 10/8

6:32 am-7:17 pm

1 stop15h 45m

Anchorage

Sun 10/11

8:22 pm-9:20 am

1 stop9h 58m

$425

St. LouisAnchorage

STL Lambert-St Louis - ANC Anchorage

STLANC

Lambert-St Louis

Sun 10/4

5:00 am-8:49 pm

1 stop18h 49m

Anchorage

Mon 10/19

8:22 pm-5:02 pm

1 stop17h 40m

$425

St. LouisAnchorage

STL Lambert-St Louis - ANC Anchorage

STLANC

Lambert-St Louis

Tue 10/6

7:02 am-8:51 pm

1 stop16h 49m

Anchorage

Tue 10/27

7:05 am-11:59 pm

1 stop13h 54m

$425

St. LouisAnchorage

STL Lambert-St Louis - ANC Anchorage

STLANC

Lambert-St Louis

Thu 10/1

6:29 am-8:39 pm

1 stop17h 10m

Anchorage

Mon 10/5

2:29 am-11:59 pm

1 stop18h 30m

$425

St. LouisAnchorage

STL Lambert-St Louis - ANC Anchorage

STLANC

Lambert-St Louis

Sat 10/10

6:00 am-6:57 pm

1 stop15h 57m

Anchorage

Sat 10/17

8:25 pm-9:09 am

1 stop9h 44m

$425

St. LouisAnchorage

STL Lambert-St Louis - ANC Anchorage

STLANC

Lambert-St Louis

Mon 1/11

12:30 pm-9:03 pm

1 stop11h 33m

Anchorage

Wed 1/13

9:55 pm-10:38 am

1 stop9h 43m

$425

St. LouisAnchorage

STL Lambert-St Louis - ANC Anchorage

STLANC

Lambert-St Louis

Mon 10/12

11:35 am-7:57 pm

1 stop11h 22m

Anchorage

Fri 10/16

11:45 pm-12:40 pm

1 stop9h 55m

$425

Quickest round-trip

St. LouisAnchorage

STL Lambert-St Louis - ANC Anchorage

STLANC

Lambert-St Louis

Mon 10/12

1:29 pm-7:57 pm

1 stop9h 28m

Anchorage

Sat 10/17

8:59 pm-10:48 am

1 stop10h 49m

$425

St. LouisAnchorage

STL Lambert-St Louis - ANC Anchorage

STLANC

Lambert-St Louis

Mon 10/5

5:40 am-7:17 pm

1 stop16h 37m

Anchorage

Mon 10/19

8:22 pm-9:20 am

1 stop9h 58m

$425

St. LouisAnchorage

STL Lambert-St Louis - ANC Anchorage

STLANC

Lambert-St Louis

Tue 10/6

7:02 am-2:45 pm

1 stop10h 43m

Anchorage

Tue 10/27

7:42 am-11:59 pm

2 stops13h 17m

$430

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Alaska?

If you don’t want to visit Alaska in January, then you should wait until April to fly from St. Louis, when ticket prices are also cheap, with an average price of $487.

How far in advance should I book a flight from St. Louis 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 $543 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 $446 on momondo.

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

You could potentially save up to 1% 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

Best Price Found	$213
Fastest flight time	9h 07m
Direct flights	None

The best one-way flight to Alaska from St. Louis in the past 72 hours is $213. The best round-trip flight deal from St. Louis to Alaska found on momondo in the last 72 hours is $425.

The fastest flight from St. Louis to Alaska takes 9h 07m

There are no direct flights from St. Louis to Alaska. There are no popular flight routes from St. Louis to Alaska.

Search flight deals

Frequently asked questions about flying from St. Louis to Alaska

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?
As of September 2026, there are 5 operators available to choose from 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
United Airlines	PriceFrom $295	Free Cancellation	Rating 7.4 10,194 reviews	Search United Airlines flights
American Airlines	PriceFrom $356	Free Cancellation	Rating 7.1 12,045 reviews	Search American Airlines flights
Delta	PriceFrom $364	Free Cancellation	Rating 7.8 8,554 reviews	Search Delta flights
Alaska Airlines	PriceFrom $384	Free Cancellation	Rating 7.9 12,906 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $524	Free Cancellation	Rating 8.0 4,195 reviews	Search Southwest 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.