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St. Louis

$199+ Cheap flights from Alaska to St. Louis (STL)

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ANC — STL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Alaska to St. Louis

Keep the following information in mind while searching for Alaska to St. Louis flight deals. Data was last updated June 12, 2025.

Round-trip from

$450
(Alaska Airlines)

One-way from

$199
(Delta)

Popular in

September

Cheapest in

January

Average price

$645
From Alaska to Lambert-St Louis
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One-way flight from Alaska to Lambert-St Louis
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Highest demand for flights based on searches. 5% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Alaska to St. Louis

Cheapest flights from Alaska to St. Louis
Explore the most affordable flight options available from Alaska to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/94:20 pmANC - STL
1 stop19h 19mAlaska Airlines
Sat 9/133:35 pmSTL - ANC
1 stop10h 12mAlaska Airlines
Deal found 6/10$450
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/812:55 amANC - STL
2 stops10h 29mDelta
Sat 9/1310:51 amSTL - ANC
1 stop11h 05mDelta
Deal found 6/10$455
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/258:55 pmANC - STL
2 stops17h 09mMultiple Airlines
Sun 6/296:12 amSTL - ANC
1 stop9h 04mMultiple Airlines
Deal found 6/10$552
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2511:59 pmANC - STL
1 stop11h 38mUnited Airlines
Sun 6/294:45 pmSTL - ANC
1 stop8h 49mUnited Airlines
Deal found 6/10$698
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/242:09 amFAI - STL
1 stop9h 17mAlaska Airlines
Sun 6/297:32 pmSTL - FAI
1 stop10h 04mAlaska Airlines
Deal found 6/10$699
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/273:15 pmFAI - STL
2 stops14h 24mDelta
Tue 7/12:23 pmSTL - FAI
2 stops13h 26mDelta
Deal found 6/12$710
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/128:11 pmANC - STL
1 stop10h 07mAmerican Airlines
Mon 6/169:24 amSTL - ANC
1 stop12h 36mAmerican Airlines
Deal found 6/10$1,048

Cheapflights Fare Finder

Customize your flight search to find flights from Alaska to St. Louis 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Alaska to St. Louis that are best for you.

Fly from

Alaska

Fly to

St. Louis

Route

Depart

Return

Price

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Tue 9/9

4:20 pm-2:39 pm

1 stop19h 19m

Lambert-St Louis

Sat 9/13

3:35 pm-10:47 pm

1 stop10h 12m

$450

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Mon 9/8

12:55 am-2:24 pm

2 stops10h 29m

Lambert-St Louis

Sat 9/13

10:51 am-6:56 pm

1 stop11h 05m

$455

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Wed 6/25

8:55 pm-5:04 pm

2 stops17h 09m

Lambert-St Louis

Sun 6/29

6:12 am-12:16 pm

1 stop9h 04m

$552

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Wed 6/25

11:59 pm-2:37 pm

1 stop11h 38m

Lambert-St Louis

Sun 6/29

4:45 pm-10:34 pm

1 stop8h 49m

$698

FairbanksSt. Louis

FAI - STL

FAISTL

Fairbanks

Tue 6/24

2:09 am-2:26 pm

1 stop9h 17m

Lambert-St Louis

Sun 6/29

7:32 pm-2:36 am

1 stop10h 04m

$699

FairbanksSt. Louis

FAI - STL

FAISTL

Fairbanks

Fri 6/27

3:15 pm-8:39 am

2 stops14h 24m

Lambert-St Louis

Tue 7/1

2:23 pm-12:49 am

2 stops13h 26m

$710

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Tue 9/2

10:05 pm-8:36 am

1 stop7h 31m

$199

AnchorageSt. Louis

ANC - STL

ANCSTL

Anchorage

Wed 7/2

2:50 am-6:35 pm

1 stop12h 45m

$323

FairbanksSt. Louis

FAI - STL

FAISTL

Fairbanks

Thu 8/7

12:30 am-1:26 pm

1 stop9h 56m

$325

FairbanksSt. Louis

FAI - STL

FAISTL

Fairbanks

Fri 8/8

11:23 pm-3:47 pm

2 stops13h 24m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 11 results
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Best time to book a flight from Alaska to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Alaska 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 Alaska to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from Alaska to St. Louis (average of $311). Flying from Alaska to St. Louis in March is currently the most expensive (average of $356). 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 AK to STL?

Find hourly flight availability from Alaska to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Alaska to St. Louis as you normally would.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Alaska to St. Louis, such as Alaska Airlines, Delta and United Airlines. 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
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Alaska to St. Louis. 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 into for flights to St. Louis from Alaska?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Alaska. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $199. Alaska Airlines flights start at $323 while deals on United Airlines start at $370 one-way.

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

    Yes. In addition to deals on Alaska to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Alaska to St. Louis.

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

    Yes. Cheapflights offers flight deals from Alaska to St. Louis 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 Alaska to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Alaska to St. Louis (average of $311). Flying from Alaska to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Alaska?

Book flights to Alaska if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
Farmington

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Alternative routes for Alaska to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Alaska to St. Louis

Discover the top 4 airlines that operate flights from Alaska to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$499Average$594FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$499Average$660FlexibilityNo cancel feeOn-time69%
DeltaCheapest$499Average$670FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$519Average$659FlexibilityNo cancel feeOn-time75%

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