How long is the flight from St. Louis to Alaska?

A quick flight from St. Louis to Alaska can take about 11h 17m. Alaska Airlines provides one of the quickest options available for as low as $400. There are 2927 mi between St. Louis and Alaska.

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 Delta ($184), American Airlines ($235), and Alaska Airlines ($238).

In terms of precipitation, rainfall in Alaska ranges from 0.5 - 3.3 inches per month. August is typically the wettest month, when rainfall can reach 3.3 in. April is typically the driest time to visit Alaska when rainfall is around 0.5 in.

If weather is an important factor for your trip to Alaska, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 59.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.6 F).

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 - Juneau Intl.

What are the most popular airlines that fly from St. Louis to Alaska?

Before booking your flight from St. Louis to Alaska check out the most popular airlines for this route: Alaska Airlines, Delta or United Airlines.

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.

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.

$268+ Flights from St. Louis to Alaska

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Cheap 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 December 26, 2025.

Mon 12/296:44 pmSTL - ANC

2 stops25h 49mAlaska Airlines

Tue 12/301:59 amANC - STL

1 stop19h 00mAlaska Airlines

Deal found 12/25

$1,105

Sun 12/282:43 pmSTL - ANC

1 stop17h 44mAlaska Airlines

Mon 12/291:25 amANC - STL

2 stops11h 58mAlaska Airlines

Deal found 12/24

$1,106

Sat 12/277:04 amSTL - ANC

1 stop14h 54mAmerican Airlines

Sun 12/281:04 amANC - STL

1 stop12h 22mAmerican Airlines

Deal found 12/23

$1,128

Sun 12/289:00 amSTL - ANC

1 stop18h 25mUnited Airlines

Mon 12/291:30 amANC - STL

1 stop8h 50mUnited Airlines

Deal found 12/24

$1,137

Sat 12/279:55 amSTL - ANC

2 stops17h 30mUnited Airlines

Sun 12/281:30 amANC - STL

1 stop8h 50mUnited Airlines

Deal found 12/23

$1,142

Mon 12/295:26 pmSTL - FAI

1 stop12h 24mAlaska Airlines

Fri 1/22:35 amFAI - STL

1 stop18h 15mAlaska Airlines

Deal found 12/25

$1,184

Sun 12/282:43 pmSTL - FAI

2 stops13h 37mAlaska Airlines

Tue 12/3012:15 pmFAI - STL

1 stop8h 44mAlaska Airlines

Deal found 12/24

$2,638

Best flights from St. Louis to Alaska
Discover carefully curated flight deals from St. Louis to Alaska that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Wed 4/297:00 amSTL - ANC

1 stop11h 17mAlaska Airlines

Tue 5/51:49 amANC - STL

1 stop11h 01mAlaska Airlines

Deal found 12/25

$400

Fri 1/165:25 pmSTL - ANC

1 stop10h 23mDelta

Tue 1/209:15 pmANC - STL

1 stop14h 23mDelta

Deal found 12/24

$400

Wed 4/299:10 amSTL - ANC

2 stops16h 35mUnited Airlines

Wed 5/611:59 pmANC - STL

1 stop9h 21mUnited Airlines

Deal found 12/25

$405

Fri 3/62:47 pmSTL - ANC

1 stop10h 02mAlaska Airlines

Thu 3/122:26 amANC - STL

1 stop18h 33mAlaska Airlines

Deal found 12/26

$400

Fri 3/62:47 pmSTL - ANC

1 stop13h 24mAlaska Airlines

Wed 3/111:25 amANC - STL

1 stop9h 26mAlaska Airlines

Deal found 12/23

$400

Wed 3/47:00 amSTL - ANC

1 stop17h 49mAlaska Airlines

Mon 3/96:09 pmANC - STL

1 stop16h 42mAlaska Airlines

Deal found 12/25

$400

Fri 1/232:50 pmSTL - ANC

1 stop10h 01mAlaska Airlines

Mon 1/263:58 pmANC - STL

1 stop18h 56mAlaska Airlines

Deal found 12/23

$400

Thu 2/52:50 pmSTL - FAI

1 stop12h 06mAlaska Airlines

Sun 2/84:06 pmFAI - STL

1 stop18h 48mAlaska Airlines

Deal found 12/24

$401

Thu 2/52:50 pmSTL - FAI

1 stop12h 06mAlaska Airlines

Sun 2/82:10 amFAI - STL

1 stop8h 44mAlaska Airlines

Deal found 12/24

$401

Thu 1/222:50 pmSTL - FAI

1 stop12h 06mAlaska Airlines

Mon 1/264:06 pmFAI - STL

1 stop18h 48mAlaska Airlines

Deal found 12/23

$401

Fri 2/207:00 amSTL - JNU

3 stops40h 04mAlaska Airlines

Tue 2/247:26 amJNU - STL

2 stops27h 25mAlaska Airlines

Deal found 12/23

$531

Tue 2/247:00 amSTL - JNU

3 stops26h 43mAlaska Airlines

Thu 2/269:50 amJNU - STL

3 stops35h 09mAlaska Airlines

Deal found 12/24

$531

Tue 2/247:00 amSTL - KTN

1 stop15h 35mAlaska Airlines

Fri 2/275:49 pmKTN - STL

1 stop17h 02mAlaska Airlines

Deal found 12/23

$696

Last-minute flights from St. Louis to Alaska
Discover last-minute flight deals from St. Louis to Alaska. Data last updated December 26, 2025 and is based on user searches.

Sun 12/282:43 pmSTL - ANC

1 stop17h 44mAlaska Airlines

Mon 12/291:25 amANC - STL

2 stops11h 58mAlaska Airlines

Deal found 12/24

$1,106

Sun 12/282:43 pmSTL - FAI

2 stops13h 37mAlaska Airlines

Tue 12/3012:15 pmFAI - STL

1 stop8h 44mAlaska Airlines

Deal found 12/24

$2,638

Mon 12/296:44 pmSTL - ANC

2 stops25h 49mAlaska Airlines

Tue 12/301:59 amANC - STL

1 stop19h 00mAlaska Airlines

Deal found 12/25

$1,105

Mon 12/295:26 pmSTL - FAI

1 stop12h 24mAlaska Airlines

Fri 1/22:35 amFAI - STL

1 stop18h 15mAlaska Airlines

Deal found 12/25

$1,184

Wed 1/73:40 pmSTL - ANC

1 stop12h 08mDelta

Sat 1/109:15 pmANC - STL

1 stop10h 28mDelta

Deal found 12/24

$600

Wed 1/76:00 amSTL - ANC

2 stops16h 57mUnited Airlines

Sat 1/1011:45 pmANC - STL

2 stops13h 07mUnited Airlines

Deal found 12/24

$612

Thu 1/82:50 pmSTL - FAI

1 stop14h 58mAlaska Airlines

Mon 1/125:51 amFAI - STL

1 stop29h 03mAlaska Airlines

Deal found 12/24

$605

Fri 1/165:25 pmSTL - ANC

1 stop10h 23mDelta

Mon 1/191:20 amANC - STL

2 stops17h 18mDelta

Deal found 12/25

$398

Thu 1/222:50 pmSTL - FAI

1 stop14h 58mAlaska Airlines

Mon 1/264:06 pmFAI - STL

1 stop18h 48mAlaska Airlines

Deal found 12/25

$401

Fri 1/232:50 pmSTL - ANC

1 stop14h 31mAlaska Airlines

Mon 1/266:03 pmANC - STL

1 stop16h 51mAlaska Airlines

Deal found 12/24

$400

Fri 1/2311:20 amSTL - ANC

2 stops14h 55mUnited Airlines

Mon 1/269:00 amANC - STL

2 stops21h 22mUnited Airlines

Deal found 12/24

$549

One-way flights from St. Louis to Alaska
Search for one-way flight options from St. Louis to Alaska. Find affordable one-way fares based on user searches. Data last updated December 26, 2025.

Thu 5/142:18 pmSTL - FAI

2 stops12h 48mDelta

Deal found 12/25

$268

Thu 5/147:56 pmSTL - FAI

1 stop9h 21mAlaska Airlines

Deal found 12/25

$280

Sat 5/306:20 pmSTL - ANC

1 stop19h 00mAlaska Airlines

Deal found 12/24

$297

Wed 5/136:20 pmSTL - ANC

2 stops19h 38mAlaska Airlines

Deal found 12/23

$300

Mon 5/257:56 pmSTL - FAI

1 stop9h 21mAlaska Airlines

Deal found 12/24

$321

Sun 5/246:20 pmSTL - FAI

2 stops10h 57mAlaska Airlines

Deal found 12/24

$326

Thu 6/116:20 pmSTL - ANC

1 stop18h 49mAlaska Airlines

Deal found 12/25

$341

Sat 5/236:00 amSTL - FAI

1 stop20h 05mAlaska Airlines

Deal found 12/24

$342

Sun 5/249:44 amSTL - FAI

2 stops14h 05mAmerican Airlines

Deal found 12/24

$397

Mon 1/55:26 pmSTL - ANC

2 stops22h 51mAlaska Airlines

Deal found 12/26

$446

Wed 12/316:00 amSTL - ANC

1 stop15h 57mDelta

Deal found 12/24

$478

Thu 5/146:20 pmSTL - FAI

3 stops29h 29mMultiple Airlines

Deal found 12/25

$654

Find flight deals from St. Louis to Alaska

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$398 (Delta)
One-way from	$268 (Delta)
Popular in	July
Cheapest in	October
Average price	$671

Provider with most accurate pricing for Lambert-St Louis-Anchorage flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Anchorage flights.

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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. 14% potential increase in price ($108 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 4/29

7:00 am-3:17 pm

1 stop11h 17m

Anchorage

Tue 5/5

1:49 am-3:50 pm

1 stop11h 01m

$400

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 1/16

5:25 pm-12:48 am

1 stop10h 23m

Anchorage

Tue 1/20

9:15 pm-2:38 pm

1 stop14h 23m

$400

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 3/6

2:47 pm-9:49 pm

1 stop10h 02m

Anchorage

Thu 3/12

2:26 am-11:59 pm

1 stop18h 33m

$400

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 3/6

2:47 pm-1:11 am

1 stop13h 24m

Anchorage

Wed 3/11

1:25 am-1:51 pm

1 stop9h 26m

$400

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 3/4

7:00 am-9:49 pm

1 stop17h 49m

Anchorage

Mon 3/9

6:09 pm-1:51 pm

1 stop16h 42m

$400

St. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Fri 1/23

2:50 pm-9:51 pm

1 stop10h 01m

Anchorage

Mon 1/26

3:58 pm-1:54 pm

1 stop18h 56m

$400

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 2/5

2:50 pm-11:56 pm

1 stop12h 06m

Fairbanks

Sun 2/8

4:06 pm-1:54 pm

1 stop18h 48m

$401

St. LouisFairbanks

STL - FAI

STLFAI

Lambert-St Louis

Thu 2/5

2:50 pm-11:56 pm

1 stop12h 06m

Fairbanks

Sun 2/8

2:10 am-1:54 pm

1 stop8h 44m

$401

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. LouisAnchorage

STL - ANC

STLANC

Lambert-St Louis

Wed 4/29

9:10 am-10:45 pm

2 stops16h 35m

Anchorage

Wed 5/6

11:59 pm-12:20 pm

1 stop9h 21m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 26 results

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, December is the cheapest month in which you can book a flight from St. Louis to Alaska (average of $315). Flying from St. Louis to Alaska in November is currently the most expensive (average of $508). 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?

A simple way to save on the total cost of your ticket is to fly from St. Louis to Alaska in the evening. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from St. Louis to Alaska?

Travelers seeking maximum savings on their St. Louis to Alaska flight should consider departing on Thursday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Alaska

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

11,534 reviews

Reviews

1 / 20

10.0

Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.

Alaska Airlines

8.0

Very good

11,534 reviews

Alaska Airlines

8.0

Very good

11,534 reviews

Reviews

1 / 20

10.0

Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.

Delta

7.9

Good

8,013 reviews

Alaska Airlines

8.0

Very good

11,534 reviews

Reviews

1 / 20

10.0

Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.

United Airlines

7.4

Good

9,115 reviews

Alaska Airlines

8.0

Very good

11,534 reviews

Reviews

1 / 20

10.0

Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.

American Airlines

7.2

Good

11,064 reviews

Alaska Airlines

8.0

Very good

11,534 reviews

Reviews

1 / 20

10.0

Excellent

Georgana,Dec 2025

ORD - PDX

Very cordial grew. Thank you. However, crying baby issues and no ear plugs available.

Related info for your journey

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 11h 17m. Alaska Airlines provides one of the quickest options available for as low as $400. There are 2927 mi between St. Louis and Alaska.
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 Delta ($184), American Airlines ($235), and Alaska Airlines ($238).
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 - Juneau Intl.
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, December is the cheapest month in which you can book a flight from St. Louis to Alaska (average of $315). Flying from St. Louis to Alaska in November is currently the most expensive (average of $508). 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

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Top 4 airlines flying from St. Louis to Alaska

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$362	Average$652	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$384	Average$752	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$435	Average$750	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$468	Average$639	FlexibilityNo cancel fee	On-time71%

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$268+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from St. Louis to Alaska

Cheapest flights from St. Louis to AlaskaExplore 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 December 26, 2025.

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 December 26, 2025.

Find 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 December 26, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Alaska that are best for you.

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.

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?

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 December 26, 2025.

What is the cheapest day to fly from St. Louis to Alaska?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Alaska. Price data was last updated on December 16, 2024.

Reviews of airlines servicing Alaska

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.

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?

How long is the flight from St. Louis to Alaska?

What are the cheapest airlines to fly from St. Louis to Alaska one-way?

What are the most popular routes from St. Louis to Alaska?

Can I find deals for flights from St. Louis to Alaska that include hotel bookings?

How can I find direct flights from St. Louis to Alaska?

Can I find deals for business class flights from St. Louis to Alaska?

What is the cheapest month to book a flight from St. Louis to Alaska?

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.

Top 4 airlines flying from St. Louis to Alaska

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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 December 26, 2025.