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

American Airlines, Southwest, and Delta 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 July 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.

$166 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.

7:00 am - 7:00 pm

STL

ANC

15h 00m

1 stop

6:00 am - 4:44 pm

ANC

STL

7h 44m

1 stop

$331Delta

Wed, Aug 26 - Tue, Sep 1

6:29 am - 10:46 pm

STL

FAI

19h 17m

1 stop

4:08 pm - 11:59 pm

FAI

STL

28h 51m

1 stop

$334Alaska Airlines

Wed, Sep 23 - Wed, Sep 30

11:00 am - 11:24 pm

STL

ANC

15h 24m

2 stops

12:39 am - 1:38 pm

ANC

STL

9h 59m

1 stop

$336Delta

Wed, Aug 26 - Mon, Aug 31

6:15 am - 5:14 pm

STL

ANC

13h 59m

1 stop

8:00 am - 11:16 pm

ANC

STL

12h 16m

2 stops

$338Delta

Fri, Sep 11 - Fri, Sep 25

2:32 pm - 12:34 am

STL

FAI

13h 02m

2 stops

10:00 pm - 3:10 pm

FAI

STL

14h 10m

1 stop

$338Delta

Mon, Aug 10 - Wed, Aug 19

6:08 pm - 3:09 pm

STL

FAI

24h 01m

2 stops

1:28 am - 5:10 pm

FAI

STL

12h 42m

2 stops

$343Alaska Airlines

Wed, Sep 23 - Tue, Sep 29

11:00 am - 11:24 pm

STL

ANC

15h 24m

2 stops

12:39 am - 6:27 pm

ANC

STL

14h 48m

2 stops

$343Delta

Wed, Aug 26 - Mon, Aug 31

4:48 pm - 10:59 pm

STL

FAI

9h 11m

1 stop

1:00 am - 12:40 pm

FAI

STL

8h 40m

1 stop

$369United Airlines

Mon, Aug 10 - Tue, Aug 18

10:12 am - 9:45 pm

STL

JNU

14h 33m

2 stops

7:10 am - 11:59 pm

JNU

STL

13h 49m

1 stop

$492American Airlines

Thu, Oct 15 - Sat, Oct 17

3:19 pm - 7:33 pm

STL

KTN

7h 14m

1 stop

5:31 pm - 2:44 pm

KTN

STL

18h 13m

2 stops

$582American Airlines

Thu, Sep 10 - Tue, Sep 15

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Delta flights from St. Louis to Alaska

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

Delta

Aug 26

STL7:00 amLambert-St Louis

15h 00m

1 stop

ANC7:00 pmAnchorage

Sep 1

ANC6:00 amAnchorage

7h 44m

1 stop

STL4:44 pmLambert-St Louis

$331

Delta

Aug 26

STL11:00 amLambert-St Louis

15h 24m

2 stops

ANC11:24 pmAnchorage

Aug 31

ANC12:39 amAnchorage

9h 59m

1 stop

STL1:38 pmLambert-St Louis

$336

Delta

Sep 11

STL6:15 amLambert-St Louis

13h 59m

1 stop

ANC5:14 pmAnchorage

Sep 25

ANC8:00 amAnchorage

12h 16m

2 stops

STL11:16 pmLambert-St Louis

$338

Southwest flights from St. Louis to Alaska

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

Southwest

Aug 21

STL1:45 pmLambert-St Louis

12h 00m

1 stop

ANC10:45 pmAnchorage

Aug 23

ANC11:55 pmAnchorage

15h 00m

2 stops

STL5:55 pmLambert-St Louis

$418

Southwest

Jul 18

STL4:10 pmLambert-St Louis

9h 35m

1 stop

ANC10:45 pmAnchorage

Aug 22

ANC11:55 pmAnchorage

9h 05m

1 stop

STL12:00 pmLambert-St Louis

$569

Southwest

Jul 14

STL8:30 amLambert-St Louis

17h 15m

2 stops

ANC10:45 pmAnchorage

Jul 16

ANC10:25 pmAnchorage

12h 55m

2 stops

STL2:20 pmLambert-St Louis

$833

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 8/26

7:00 am-7:00 pm

1 stop15h 00m

Anchorage

Tue 9/1

6:00 am-4:44 pm

1 stop7h 44m

$331

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Wed 9/23

6:29 am-10:46 pm

1 stop19h 17m

Fairbanks

Wed 9/30

4:08 pm-11:59 pm

1 stop28h 51m

$334

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 8/26

11:00 am-11:24 pm

2 stops15h 24m

Anchorage

Mon 8/31

12:39 am-1:38 pm

1 stop9h 59m

$336

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 9/11

6:15 am-5:14 pm

1 stop13h 59m

Anchorage

Fri 9/25

8:00 am-11:16 pm

2 stops12h 16m

$338

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Mon 8/10

2:32 pm-12:34 am

2 stops13h 02m

Fairbanks

Wed 8/19

10:00 pm-3:10 pm

1 stop14h 10m

$338

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Wed 9/23

6:08 pm-3:09 pm

2 stops24h 01m

Fairbanks

Tue 9/29

1:28 am-5:10 pm

2 stops12h 42m

$343

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 8/26

11:00 am-11:24 pm

2 stops15h 24m

Anchorage

Mon 8/31

12:39 am-6:27 pm

2 stops14h 48m

$343

Quickest round-trip

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Mon 8/10

4:48 pm-10:59 pm

1 stop9h 11m

Fairbanks

Tue 8/18

1:00 am-12:40 pm

1 stop8h 40m

$369

St. LouisJuneau

STL - JNU

STLJNU

Lambert-St Louis

Thu 10/15

10:12 am-9:45 pm

2 stops14h 33m

Juneau Intl

Sat 10/17

7:10 am-11:59 pm

1 stop13h 49m

$492

St. LouisKetchikan

STL - KTN

STLKTN

Lambert-St Louis

Thu 9/10

3:19 pm-7:33 pm

1 stop7h 14m

Ketchikan

Tue 9/15

5:31 pm-2:44 pm

2 stops18h 13m

$582

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 August, then you should wait until January to fly from St. Louis, when ticket prices are also cheap, with an average price of $259.

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 $551 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 $474 on momondo.

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

You could potentially save up to 19% 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	7h 14m
Direct flights	None

The fastest flight from St. Louis to Alaska takes 7h 14m

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 July 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 $345	Free Cancellation	Rating 7.4 9,979 reviews	Search United Airlines flights
Delta	PriceFrom $364	Free Cancellation	Rating 7.8 8,458 reviews	Search Delta flights
American Airlines	PriceFrom $368	Free Cancellation	Rating 7.1 11,805 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $384	Free Cancellation	Rating 7.9 12,654 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $524	Free Cancellation	Rating 7.9 4,251 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.