$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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Sep 4 — Sep 111
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Alaska
Cheapest
Best
Last-minute
One-way
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 5, 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 5, 2026.
This Trip.com deal was found by Cheapflights users on 7/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:36 pm -
1 stop9h 02m
Thu 9/31:59 am -
1 stop19h 00m
Deal found 7/31![Alaska Airlines logo]()
$392
This Delta deal was found by Cheapflights users on 8/1. 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 9/76:00 am -
1 stop16h 00m
Mon 9/712:35 am -
1 stop17h 56m
Deal found 8/1![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 8/4. 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 8/267:00 am -
1 stop15h 00m
Tue 9/16:00 am -
1 stop7h 44m
Deal found 8/4![Delta logo]()
$405
This Delta deal was found by Cheapflights users on 8/1. 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 9/86:15 am -
1 stop8h 25m
Tue 9/810:10 pm -
1 stop22h 06m
Deal found 8/1![Delta logo]()
$406
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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 stop13h 29m
Wed 9/305:30 am -
1 stop10h 08m
Deal found 8/4![Alaska Airlines logo]()
$406
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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.
Thu 8/277:36 pm -
2 stops15h 44m
Sun 8/301:59 am -
1 stop19h 00m
Deal found 8/1![Alaska Airlines logo]()
$409
This Priceline deal was found by Cheapflights users on 7/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:36 pm -
1 stop9h 12m
Thu 9/241:51 pm -
2 stops31h 08m
Deal found 7/31![Alaska Airlines logo]()
$410
This Delta deal was found by Cheapflights users on 7/31. 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.
Fri 9/113:52 pm -
1 stop8h 08m
Thu 9/241:32 am -
2 stops13h 05m
Deal found 7/31![Delta logo]()
$412
This Priceline deal was found by Cheapflights users on 8/4. 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.
Mon 9/216:08 pm -
2 stops21h 20m
Wed 9/236:17 pm -
2 stops19h 53m
Deal found 8/4![Alaska Airlines logo]()
$415
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:40 pm -
1 stop9h 19m
Sat 9/51:00 am -
1 stop8h 40m
Deal found 7/31![United Airlines logo]()
$426
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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 10/57:02 am -
1 stop16h 49m
Mon 10/51:59 am -
1 stop19h 00m
Deal found 8/2![Alaska Airlines logo]()
$428
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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 9/256:29 am -
1 stop18h 10m
Fri 9/2510:50 pm -
2 stops12h 31m
Deal found 8/3![Alaska Airlines logo]()
$430
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 5, 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 5, 2026.
This Delta deal was found by Cheapflights users on 8/4. 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 9/26:00 am -
1 stop16h 00m
Wed 9/98:05 pm -
1 stop15h 03m
Deal found 8/4![Delta logo]()
$405
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:53 am -
1 stop12h 06m
Fri 9/48:15 pm -
1 stop10h 24m
Deal found 7/31![United Airlines logo]()
$405
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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 9/236:29 am -
1 stop17h 30m
Wed 9/305:30 am -
1 stop10h 08m
Deal found 8/3![Alaska Airlines logo]()
$406
This American Airlines deal was found by Cheapflights users on 8/3. 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 11/110:21 am -
2 stops14h 14m
Sat 11/77:03 am -
2 stops13h 30m
Deal found 8/3![American Airlines logo]()
$486
This Delta deal was found by Cheapflights users on 8/1. 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 8/1![Delta logo]()
$405
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:40 pm -
1 stop9h 19m
Sat 9/51:00 am -
1 stop8h 40m
Deal found 7/31![United Airlines logo]()
$426
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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 11/107:00 am -
2 stops13h 34m
Thu 11/128:00 am -
1 stop12h 56m
Deal found 8/3![Alaska Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 8/1. 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 9/56:30 am -
2 stops17h 30m
Wed 9/98:05 pm -
1 stop15h 03m
Deal found 8/1![Delta logo]()
$410
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 10/57:02 am -
1 stop21h 35m
Tue 10/65:09 am -
2 stops15h 50m
Deal found 7/30![Alaska Airlines logo]()
$446
This Delta deal was found by Cheapflights users on 8/3. 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 9/111:00 am -
2 stops15h 24m
Tue 9/812:50 pm -
1 stop7h 26m
Deal found 8/3![Delta logo]()
$410
This Delta deal was found by Cheapflights users on 8/5. 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 8/268:48 am -
2 stops14h 24m
Tue 9/110:10 pm -
1 stop7h 27m
Deal found 8/5![Delta logo]()
$410
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Sat 8/295:42 am -
2 stops12h 17m
Sat 9/511:53 am -
2 stops17h 31m
Deal found 8/2![American Airlines logo]()
$594
This Delta deal was found by Cheapflights users on 8/3. 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 9/113:52 pm -
1 stop8h 08m
Fri 9/1810:10 pm -
2 stops15h 22m
Deal found 8/3![Delta logo]()
$412
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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 -
2 stops38h 08m
Mon 9/287:17 am -
2 stops13h 42m
Deal found 8/3![Alaska Airlines logo]()
$531
This American Airlines deal was found by Cheapflights users on 8/3. 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 9/178:30 am -
2 stops14h 03m
Mon 9/219:18 am -
2 stops11h 25m
Deal found 8/3![American Airlines logo]()
$600
This Delta deal was found by Cheapflights users on 8/3. 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.
Sun 8/302:32 pm -
2 stops13h 27m
Mon 9/710:10 pm -
2 stops14h 44m
Deal found 8/3![Delta logo]()
$417
This Delta deal was found by Cheapflights users on 8/1. 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 1/112:15 pm -
2 stops13h 00m
Thu 1/141:30 am -
2 stops17h 11m
Deal found 8/1![Delta logo]()
$417
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:35 am -
1 stop9h 46m
Wed 9/95:03 am -
1 stop10h 35m
Deal found 7/31![American Airlines logo]()
$691
This Delta deal was found by Cheapflights users on 8/1. 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 9/86:15 am -
1 stop8h 25m
Tue 9/810:30 pm -
2 stops18h 28m
Deal found 8/1![Delta logo]()
$435
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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 8/296:35 am -
1 stop15h 58m
Sat 9/53:55 pm -
1 stop19h 09m
Deal found 8/2![Alaska Airlines logo]()
$776
This Delta deal was found by Cheapflights users on 8/3. 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 9/17:00 am -
2 stops14h 16m
Mon 9/77:35 am -
2 stops14h 06m
Deal found 8/3![Delta logo]()
$531
This Priceline deal was found by Cheapflights users on 8/3. 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.
Thu 9/176:08 pm -
2 stops17h 12m
Mon 9/215:45 pm -
3 stops21h 53m
Deal found 8/3![Alaska Airlines logo]()
$778
This Delta deal was found by Cheapflights users on 8/4. 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 8/198:00 am -
2 stops13h 16m
Wed 9/97:23 am -
2 stops13h 19m
Deal found 8/4![Delta logo]()
$552
Last-minute flights from St. Louis to AlaskaDiscover last-minute flight deals from St. Louis to Alaska. Data last updated August 5, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Alaska. Data last updated August 5, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/4. 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 8/267:00 am -
1 stop15h 00m
Tue 9/16:00 am -
1 stop7h 44m
Deal found 8/4![Delta logo]()
$405
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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.
Thu 8/277:36 pm -
2 stops15h 44m
Sun 8/301:59 am -
1 stop19h 00m
Deal found 8/1![Alaska Airlines logo]()
$409
This Trip.com deal was found by Cheapflights users on 7/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:36 pm -
1 stop9h 02m
Thu 9/31:59 am -
1 stop19h 00m
Deal found 7/31![Alaska Airlines logo]()
$392
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:40 pm -
1 stop9h 19m
Sat 9/51:00 am -
1 stop8h 40m
Deal found 7/31![United Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 8/1. 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 9/76:00 am -
1 stop16h 00m
Mon 9/712:35 am -
1 stop17h 56m
Deal found 8/1![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 8/1. 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 9/86:15 am -
1 stop8h 25m
Tue 9/810:10 pm -
1 stop22h 06m
Deal found 8/1![Delta logo]()
$406
This Delta deal was found by Cheapflights users on 7/31. 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.
Fri 9/116:15 am -
1 stop13h 59m
Fri 9/188:00 am -
2 stops13h 44m
Deal found 7/31![Delta logo]()
$412
This Expedia deal was found by Cheapflights users on 8/1. 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.
Sat 9/196:29 am -
1 stop11h 40m
Mon 9/285:30 am -
1 stop15h 29m
Deal found 8/1![Alaska Airlines logo]()
$431
This Priceline deal was found by Cheapflights users on 7/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:36 pm -
1 stop9h 12m
Thu 9/241:51 pm -
2 stops31h 08m
Deal found 7/31![Alaska Airlines logo]()
$410
This Priceline deal was found by Cheapflights users on 8/4. 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.
Mon 9/216:08 pm -
2 stops21h 20m
Wed 9/236:17 pm -
2 stops19h 53m
Deal found 8/4![Alaska Airlines logo]()
$415
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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 stop13h 29m
Wed 9/305:30 am -
1 stop10h 08m
Deal found 8/4![Alaska Airlines logo]()
$406
This Priceline deal was found by Cheapflights users on 8/1. 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.
Fri 9/256:29 am -
1 stop11h 35m
Fri 9/256:17 pm -
1 stop17h 04m
Deal found 8/1![Alaska Airlines logo]()
$428
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 5, 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 5, 2026.
This Delta deal was found by Cheapflights users on 8/5. 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 8/269:15 am -
1 stop12h 45m
Deal found 8/5![Delta logo]()
$203
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/1212:59 pm -
1 stop9h 17m
Deal found 8/3![United Airlines logo]()
$203
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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 8/266:08 pm -
2 stops29h 38m
Deal found 8/1![Alaska Airlines logo]()
$209
This Delta deal was found by Cheapflights users on 8/3. 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.
Sun 9/278:00 am -
2 stops15h 15m
Deal found 8/3![Delta logo]()
$214
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:16 am -
2 stops15h 38m
Deal found 7/31![American Airlines logo]()
$229
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/311:15 am -
1 stop10h 47m
Deal found 8/3![United Airlines logo]()
$232
This American Airlines deal was found by Cheapflights users on 8/4. 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.
Sat 9/1910:14 am -
2 stops14h 37m
Deal found 8/4![American Airlines logo]()
$233
This Trip.com deal was found by Cheapflights users on 8/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:29 am -
3 stops16h 40m
Deal found 8/4![Alaska Airlines logo]()
$291
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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 8/122:50 pm -
1 stop11h 18m
Deal found 8/4![Alaska Airlines logo]()
$308
This Delta deal was found by Cheapflights users on 8/4. 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 8/1212:52 pm -
2 stops14h 03m
Deal found 8/4![Delta logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:45 pm -
3 stops44h 33m
Deal found 7/31![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:02 pm -
3 stops46h 16m
Deal found 8/1![Multiple Airlines logo]()
$358
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 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $392 (Trip.com) |
One-way from | $203 (Delta) |
Popular in | June |
Cheapest in | October |
Average price | $624 |
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 2,558,603 searches. Data last updated August 5, 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. LouisAnchorage
STL - ANC
STLANC
Lambert-St Louis
Wed 9/2
6:00 am-7:00 pm
1 stop16h 00m
Anchorage
Wed 9/9
8:05 pm-2:08 pm
1 stop15h 03m
$405
St. LouisAnchorage
STL - ANC
STLANC
Lambert-St Louis
Fri 8/28
10:53 am-7:59 pm
1 stop12h 06m
Anchorage
Fri 9/4
8:15 pm-9:39 am
1 stop10h 24m
$405
St. LouisAnchorage
STL - ANC
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
$405
St. LouisFairbanks
STL - FAI
STLFAI
Lambert-St Louis
Wed 9/23
6:29 am-8:59 pm
1 stop17h 30m
Fairbanks
Wed 9/30
5:30 am-6:38 pm
1 stop10h 08m
$406
St. LouisAnchorage
STL - ANC
STLANC
Lambert-St Louis
Sat 9/5
6:30 am-9:00 pm
2 stops17h 30m
Anchorage
Wed 9/9
8:05 pm-2:08 pm
1 stop15h 03m
$410
St. LouisAnchorage
STL - ANC
STLANC
Lambert-St Louis
Tue 9/1
11:00 am-11:24 pm
2 stops15h 24m
Anchorage
Tue 9/8
12:50 pm-11:16 pm
1 stop7h 26m
$410
St. LouisAnchorage
STL - ANC
STLANC
Lambert-St Louis
Wed 8/26
8:48 am-8:12 pm
2 stops14h 24m
Anchorage
Tue 9/1
10:10 pm-8:37 am
1 stop7h 27m
$410
St. LouisAnchorage
STL - ANC
STLANC
Lambert-St Louis
Fri 9/11
3:52 pm-9:00 pm
1 stop8h 08m
Anchorage
Fri 9/18
10:10 pm-4:32 pm
2 stops15h 22m
$412
St. LouisAnchorage
STL - ANC
STLANC
Lambert-St Louis
Sun 8/30
2:32 pm-12:59 am
2 stops13h 27m
Anchorage
Mon 9/7
10:10 pm-3:54 pm
2 stops14h 44m
$417
St. LouisFairbanks
STL - FAI
STLFAI
Lambert-St Louis
Mon 1/11
2:15 pm-12:15 am
2 stops13h 00m
Fairbanks
Thu 1/14
1:30 am-9:41 pm
2 stops17h 11m
$417
Showing 1-10 of 32 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 June is currently the most expensive (average of $658). 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 $534 and $763 in August.The cheapest round-trip price found within the last 5 days was $392 on Alaska Airlines (Aug 28-Sep 3).
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 70 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 5, 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.
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
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.
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
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
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 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 2,558,603 searches. Data last updated August 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$295 | Average$683 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$356 | Average$701 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$364 | Average$534 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$384 | Average$592 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$524 | Average$703 | FlexibilityNo cancel fee | On-time63% |