$203+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Sep 30 — Oct 71
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Alaska with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 August 31, 2026.
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 August 31, 2026.
This Delta deal was found by Cheapflights users on 8/31. 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.
Sat 10/106:00 am -
1 stop15h 57m
Sat 10/178:25 pm -
1 stop9h 44m
Deal found 8/31![Delta logo]()
$405
This Delta deal was found by Cheapflights users on 8/31. 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.
Thu 10/83:35 pm -
1 stop8h 24m
Sun 10/1810:09 pm -
1 stop22h 12m
Deal found 8/31![Delta logo]()
$406
This Alaska Airlines deal was found by Cheapflights users on 8/28. 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.
Wed 9/233:19 pm -
1 stop10h 27m
Tue 9/291:28 am -
1 stop14h 10m
Deal found 8/28![Alaska Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 8/31. 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.
Tue 10/135:35 pm -
1 stop30h 24m
Sun 10/1810:09 pm -
1 stop22h 12m
Deal found 8/31![Delta logo]()
$407
This Delta deal was found by Cheapflights users on 8/27. 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.
Sat 9/198:00 am -
2 stops15h 15m
Tue 9/226:00 am -
1 stop7h 47m
Deal found 8/27![Delta logo]()
$410
This Delta deal was found by Cheapflights users on 8/31. 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.
Wed 10/77:45 am -
2 stops15h 56m
Sun 10/1810:09 pm -
1 stop22h 12m
Deal found 8/31![Delta logo]()
$411
This Delta deal was found by Cheapflights users on 8/31. 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.
Thu 10/83:35 pm -
1 stop8h 24m
Thu 10/154:05 pm -
2 stops13h 48m
Deal found 8/31![Delta logo]()
$412
This Delta deal was found by Cheapflights users on 8/31. 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.
Tue 10/135:35 pm -
1 stop30h 24m
Thu 10/154:05 pm -
2 stops21h 23m
Deal found 8/31![Delta logo]()
$413
This Delta deal was found by Cheapflights users on 8/26. 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.
Sat 9/198:00 am -
2 stops15h 15m
Sat 10/36:00 am -
2 stops14h 42m
Deal found 8/26![Delta logo]()
$417
This Expedia deal was found by Cheapflights users on 8/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:02 am -
2 stops13h 25m
Sun 10/251:43 am -
2 stops19h 16m
Deal found 8/26![Alaska Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 8/29. 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.
Thu 12/102:50 pm -
1 stop10h 52m
Sat 12/1212:07 am -
1 stop9h 36m
Deal found 8/29![United Airlines logo]()
$423
This Booking.com deal was found by Cheapflights users on 8/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:29 am -
1 stop9h 24m
Thu 10/15:30 am -
1 stop15h 29m
Deal found 8/31![Alaska Airlines logo]()
$426
Best flights from St. Louis to AlaskaDiscover 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 August 31, 2026.
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 August 31, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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.
Wed 9/233:19 pm -
1 stop10h 27m
Tue 9/291:28 am -
1 stop14h 10m
Deal found 8/30![Alaska Airlines logo]()
$406
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Sat 9/195:10 am -
2 stops12h 07m
Sat 10/38:59 pm -
1 stop10h 49m
Deal found 8/26![United Airlines logo]()
$410
This Delta deal was found by Cheapflights users on 8/26. 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.
Sat 9/265:47 pm -
1 stop9h 58m
Sun 10/48:00 am -
2 stops13h 44m
Deal found 8/26![Delta logo]()
$412
This American Airlines deal was found by Cheapflights users on 8/30. 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.
Sun 11/17:26 am -
2 stops17h 11m
Sat 11/76:33 pm -
2 stops13h 14m
Deal found 8/30![American Airlines logo]()
$522
This Alaska Airlines deal was found by Cheapflights users on 8/29. 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 9/296:29 am -
1 stop17h 26m
Thu 10/15:30 am -
1 stop15h 29m
Deal found 8/29![Alaska Airlines logo]()
$406
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Sat 9/2610:27 am -
2 stops15h 16m
Mon 10/511:45 pm -
1 stop9h 55m
Deal found 8/26![United Airlines logo]()
$410
This Delta deal was found by Cheapflights users on 8/26. 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.
Sat 9/198:00 am -
2 stops15h 15m
Sat 10/36:00 am -
2 stops14h 42m
Deal found 8/26![Delta logo]()
$417
This Delta deal was found by Cheapflights users on 8/26. 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.
Sat 9/266:40 am -
2 stops15h 10m
Sat 10/32:38 pm -
2 stops15h 02m
Deal found 8/26![Delta logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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.
Mon 11/27:00 am -
1 stop19h 45m
Mon 11/22:55 am -
1 stop8h 30m
Deal found 8/30![Alaska Airlines logo]()
$428
This Alaska Airlines deal was found by Cheapflights users on 8/26. 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.
Fri 10/94:42 pm -
2 stops21h 32m
Tue 10/139:44 am -
2 stops11h 15m
Deal found 8/26![Alaska Airlines logo]()
$440
This Alaska Airlines deal was found by Cheapflights users on 8/29. 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.
Sat 10/106:02 am -
1 stop10h 34m
Sat 10/171:43 am -
2 stops19h 16m
Deal found 8/29![Alaska Airlines logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 8/27. 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.
Sat 9/126:29 am -
2 stops27h 15m
Thu 9/175:03 am -
1 stop10h 35m
Deal found 8/27![Alaska Airlines logo]()
$633
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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.
Mon 9/143:19 pm -
1 stop9h 07m
Fri 9/185:03 am -
1 stop30h 18m
Deal found 8/30![Alaska Airlines logo]()
$716
This Alaska Airlines deal was found by Cheapflights users on 8/29. 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.
Sun 11/17:00 am -
1 stop17h 28m
Sat 11/76:33 pm -
1 stop16h 52m
Deal found 8/29![Alaska Airlines logo]()
$757
This Alaska Airlines deal was found by Cheapflights users on 8/29. 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 9/156:29 am -
2 stops27h 15m
Sat 9/195:03 am -
1 stop30h 18m
Deal found 8/29![Alaska Airlines logo]()
$770
This Alaska Airlines deal was found by Cheapflights users on 8/28. 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.
Mon 9/286:08 pm -
2 stops17h 12m
Mon 10/55:45 pm -
3 stops51h 14m
Deal found 8/28![Alaska Airlines logo]()
$772
This Alaska Airlines deal was found by Cheapflights users on 8/28. 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.
Mon 9/217:36 pm -
1 stop15h 44m
Tue 9/225:31 pm -
1 stop17h 50m
Deal found 8/28![Alaska Airlines logo]()
$786
Last-minute flights from St. Louis to AlaskaDiscover last-minute flight deals from St. Louis to Alaska. Data last updated August 31, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Alaska. Data last updated August 31, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/27. 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.
Sat 9/196:15 am -
1 stop13h 59m
Tue 9/2210:10 pm -
1 stop9h 21m
Deal found 8/27![Delta logo]()
$405
This United Airlines deal was found by Cheapflights users on 8/26. 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.
Sat 9/194:40 pm -
1 stop9h 25m
Sat 10/38:59 pm -
1 stop10h 49m
Deal found 8/26![United Airlines logo]()
$495
This Alaska Airlines deal was found by Cheapflights users on 8/26. 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.
Sat 9/196:08 pm -
2 stops20h 07m
Fri 10/21:43 am -
2 stops19h 16m
Deal found 8/26![Alaska Airlines logo]()
$501
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Mon 9/2111:01 am -
1 stop12h 48m
Fri 10/98:22 pm -
1 stop18h 58m
Deal found 8/28![American Airlines logo]()
$470
This Expedia deal was found by Cheapflights users on 8/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:29 am -
2 stops11h 29m
Thu 10/81:59 am -
1 stop19h 00m
Deal found 8/28![Alaska Airlines logo]()
$493
This Alaska Airlines deal was found by Cheapflights users on 8/28. 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.
Wed 9/233:19 pm -
1 stop10h 27m
Tue 9/291:28 am -
1 stop14h 10m
Deal found 8/28![Alaska Airlines logo]()
$406
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Wed 9/2310:14 am -
2 stops15h 32m
Wed 9/304:08 pm -
2 stops15h 10m
Deal found 8/27![American Airlines logo]()
$467
This United Airlines deal was found by Cheapflights users on 8/28. 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.
Fri 9/2511:35 am -
1 stop11h 22m
Fri 10/211:45 pm -
2 stops11h 31m
Deal found 8/28![United Airlines logo]()
$412
This Alaska Airlines deal was found by Cheapflights users on 8/26. 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.
Fri 9/256:08 pm -
2 stops23h 10m
Sun 10/45:04 pm -
1 stop27h 55m
Deal found 8/26![Alaska Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 8/26. 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 9/258:00 am -
2 stops15h 15m
Sat 10/36:00 am -
2 stops14h 42m
Deal found 8/26![Delta logo]()
$476
This Booking.com deal was found by Cheapflights users on 8/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:29 am -
1 stop10h 19m
Fri 9/254:01 pm -
1 stop19h 20m
Deal found 8/26![Alaska Airlines logo]()
$483
This Booking.com deal was found by Cheapflights users on 8/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:29 am -
1 stop9h 24m
Thu 10/15:30 am -
1 stop15h 29m
Deal found 8/31![Alaska Airlines logo]()
$426
One-way flights from St. Louis to AlaskaSearch for one-way flight options from St. Louis to Alaska. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
Search for one-way flight options from St. Louis to Alaska. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
This Priceline deal was found by Cheapflights users on 8/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:02 am -
1 stop10h 34m
Deal found 8/27![Alaska Airlines logo]()
$203
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Sat 10/3111:00 am -
2 stops14h 56m
Deal found 8/27![United Airlines logo]()
$209
This Delta deal was found by Cheapflights users on 8/27. 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.
Thu 11/199:45 am -
1 stop14h 11m
Deal found 8/27![Delta logo]()
$232
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Fri 11/201:40 pm -
1 stop12h 16m
Deal found 8/27![United Airlines logo]()
$262
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Thu 11/199:40 am -
2 stops16h 16m
Deal found 8/27![United Airlines logo]()
$268
This Alaska Airlines deal was found by Cheapflights users on 8/27. 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.
Sun 11/17:06 pm -
2 stops20h 27m
Deal found 8/27![Alaska Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Tue 9/812:59 pm -
1 stop10h 00m
Deal found 8/27![United Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 8/28. 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.
Tue 9/158:46 am -
1 stop15h 14m
Deal found 8/28![Delta logo]()
$287
This Delta deal was found by Cheapflights users on 8/28. 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.
Thu 9/178:00 am -
2 stops15h 15m
Deal found 8/28![Delta logo]()
$298
This Delta deal was found by Cheapflights users on 8/28. 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 9/1812:00 pm -
2 stops15h 45m
Deal found 8/28![Delta logo]()
$303
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 August 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $405 (Alaska Airlines) |
One-way from | $203 (Priceline) |
Popular in | July |
Cheapest in | February |
Average price | $600 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated August 31, 2026.
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
Cheapest round-trip
St. LouisFairbanks
STL Lambert-St Louis - FAI Fairbanks
STLFAI
Lambert-St Louis
Wed 9/23
3:19 pm-10:46 pm
1 stop10h 27m
Fairbanks
Tue 9/29
1:28 am-6:38 pm
1 stop14h 10m
$406
St. LouisFairbanks
STL Lambert-St Louis - FAI Fairbanks
STLFAI
Lambert-St Louis
Tue 9/29
6:29 am-8:55 pm
1 stop17h 26m
Fairbanks
Thu 10/1
5:30 am-11:59 pm
1 stop15h 29m
$406
Quickest round-trip
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Sat 9/19
5:10 am-2:17 pm
2 stops12h 07m
Anchorage
Sat 10/3
8:59 pm-10:48 am
1 stop10h 49m
$410
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Sat 9/26
10:27 am-10:43 pm
2 stops15h 16m
Anchorage
Mon 10/5
11:45 pm-12:40 pm
1 stop9h 55m
$410
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Sat 9/26
5:47 pm-12:45 am
1 stop9h 58m
Anchorage
Sun 10/4
8:00 am-12:44 am
2 stops13h 44m
$412
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Sat 9/19
8:00 am-8:15 pm
2 stops15h 15m
Anchorage
Sat 10/3
6:00 am-11:42 pm
2 stops14h 42m
$417
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Sat 9/26
6:40 am-6:50 pm
2 stops15h 10m
Anchorage
Sat 10/3
2:38 pm-8:40 am
2 stops15h 02m
$417
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Mon 11/2
7:00 am-11:45 pm
1 stop19h 45m
Anchorage
Mon 11/2
2:55 am-2:25 pm
1 stop8h 30m
$428
St. LouisFairbanks
STL Lambert-St Louis - FAI Fairbanks
STLFAI
Lambert-St Louis
Fri 10/9
4:42 pm-11:14 am
2 stops21h 32m
Fairbanks
Tue 10/13
9:44 am-11:59 pm
2 stops11h 15m
$440
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Sat 10/10
6:02 am-1:36 pm
1 stop10h 34m
Anchorage
Sat 10/17
1:43 am-11:59 pm
2 stops19h 16m
$441
Showing 1-10 of 28 resultsSorted by cheapest first
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.
STL-ANC
STL-FAI
STL-JNU
STL-KTN
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
STL-USAK
STL-ANC
STL-FAI
STL-JNU
STL-KTN
What is the cheapest month to book a flight from St. Louis to Alaska?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Alaska (average of $385). Flying from St. Louis to Alaska in July is currently the most expensive (average of $645). 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.
How much does it cost to fly round-trip from St. Louis to Alaska?
Airfare is below average for this route at the moment.
St. Louis to Alaska flights typically cost between $406 and $644 in October.The cheapest round-trip price found within the last 5 days was $405 on Alaska Airlines (Oct 10-Oct 19).
How far ahead should I book a flight from St. Louis to Alaska?
The price you pay for your flight from St. Louis to Alaska may vary depending on when you book. For the best chance of a lower fare, look to book 69 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Alaska
Get insights into the airlines that provide service to Alaska. 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 Alaska. Reviews last updated August 31, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta 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.
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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.
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Alternative routes for St. Louis to Alaska
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Alaska by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Alaska by cabin class
Find flights from St. Louis to Alaska, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Alaska flights
Browse other St. Louis and Alaska flight options. Last updated on August 31, 2026.
Popular flight searches
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St. Louis to Alaska flights
Consider these flights traveling from St. Louis to Alaska.
Top 5 airlines flying from St. Louis to Alaska
Discover the top 5 airlines that operate flights from St. Louis to Alaska. 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 7,457,451 searches. Data last updated August 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$295 | Average$683 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$356 | Average$643 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$364 | Average$534 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$384 | Average$648 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$524 | Average$703 | FlexibilityNo cancel fee | On-time63% |