$172+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Sep 13 — Sep 201
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 14, 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 14, 2026.
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:29 am -
1 stop19h 17m
Sun 10/44:06 pm -
1 stop28h 53m
Deal found 8/12![Alaska Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 8/12. 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 9/116:15 am -
1 stop13h 59m
Fri 9/186:00 am -
1 stop14h 16m
Deal found 8/12![Delta logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:29 am -
1 stop9h 24m
Wed 9/305:30 am -
1 stop10h 08m
Deal found 8/12![Alaska Airlines logo]()
$344
This Priceline deal was found by Cheapflights users on 8/13. 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.
Tue 9/226:29 am -
2 stops11h 29m
Mon 9/281:59 am -
1 stop13h 39m
Deal found 8/13![Alaska Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 8/11. 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 -
2 stops11h 35m
Tue 9/2210:10 pm -
1 stop7h 30m
Deal found 8/11![Delta logo]()
$348
This Delta deal was found by Cheapflights users on 8/12. 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.
Thu 9/106:15 am -
1 stop13h 59m
Fri 9/186:00 am -
1 stop14h 16m
Deal found 8/12![Delta logo]()
$352
This Priceline deal was found by Cheapflights users on 8/13. 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.
Wed 9/166:08 pm -
2 stops21h 45m
Sun 9/209:44 pm -
2 stops23h 15m
Deal found 8/13![Alaska Airlines logo]()
$353
This United Airlines deal was found by Cheapflights users on 8/11. 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 12/101:08 pm -
1 stop9h 32m
Sun 12/1311:40 pm -
1 stop10h 03m
Deal found 8/11![United Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Fri 9/114:40 pm -
1 stop9h 25m
Fri 9/183:30 pm -
2 stops15h 42m
Deal found 8/10![United Airlines logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 9/116:08 pm -
2 stops18h 56m
Mon 9/211:59 am -
1 stop13h 39m
Deal found 8/11![Alaska Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 9/226:29 am -
1 stop19h 17m
Mon 9/285:30 am -
1 stop15h 29m
Deal found 8/10![Alaska Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 8/12. 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.
Sun 9/278:00 am -
2 stops19h 30m
Sat 10/31:35 am -
2 stops20h 09m
Deal found 8/12![Delta logo]()
$411
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 14, 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 14, 2026.
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:29 am -
1 stop19h 17m
Sun 10/44:06 pm -
1 stop28h 53m
Deal found 8/12![Alaska Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 8/12. 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 9/116:15 am -
1 stop13h 59m
Fri 9/186:00 am -
1 stop14h 16m
Deal found 8/12![Delta logo]()
$343
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/101:08 pm -
1 stop9h 32m
Sun 12/1311:40 pm -
2 stops13h 01m
Deal found 8/12![United Airlines logo]()
$386
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 9/228:30 am -
2 stops11h 31m
Tue 9/299:18 am -
2 stops12h 09m
Deal found 8/13![American Airlines logo]()
$456
This Delta deal was found by Cheapflights users on 8/13. 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 9/223:52 pm -
1 stop8h 08m
Tue 9/2910:10 pm -
1 stop9h 21m
Deal found 8/13![Delta logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 stop9h 24m
Wed 9/305:30 am -
1 stop10h 08m
Deal found 8/13![Alaska Airlines logo]()
$344
This Booking.com deal was found by Cheapflights users on 8/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:02 am -
2 stops16h 47m
Thu 10/152:29 am -
1 stop18h 30m
Deal found 8/10![Alaska Airlines logo]()
$348
This Delta deal was found by Cheapflights users on 8/12. 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.
Thu 9/106:15 am -
1 stop13h 59m
Fri 9/186:00 am -
1 stop14h 16m
Deal found 8/12![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 8/13. 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 12/102:20 pm -
2 stops11h 16m
Sun 12/136:00 am -
2 stops15h 40m
Deal found 8/13![Delta logo]()
$355
This American Airlines deal was found by Cheapflights users on 8/10. 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 10/110:14 am -
2 stops14h 37m
Thu 10/86:33 pm -
2 stops11h 47m
Deal found 8/10![American Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 8/10. 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.
Wed 9/232:25 pm -
2 stops13h 02m
Mon 9/288:00 am -
2 stops13h 44m
Deal found 8/10![Delta logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:36 pm -
2 stops13h 39m
Thu 9/171:59 am -
1 stop19h 00m
Deal found 8/12![Alaska Airlines logo]()
$392
This Delta deal was found by Cheapflights users on 8/11. 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 10/309:47 am -
2 stops17h 58m
Tue 11/101:42 am -
2 stops19h 14m
Deal found 8/11![Delta logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 9/226:29 am -
1 stop19h 17m
Mon 9/285:30 am -
1 stop15h 29m
Deal found 8/10![Alaska Airlines logo]()
$406
This Expedia deal was found by Cheapflights users on 8/11. 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.
Fri 10/304:42 pm -
1 stop11h 55m
Wed 11/112:09 pm -
2 stops21h 16m
Deal found 8/11![Alaska Airlines logo]()
$435
This Delta deal was found by Cheapflights users on 8/9. 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
Mon 9/710:10 pm -
1 stop22h 06m
Deal found 8/9![Delta logo]()
$406
This American Airlines deal was found by Cheapflights users on 8/11. 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 8/298:36 am -
2 stops11h 25m
Sat 9/59:18 am -
2 stops11h 24m
Deal found 8/11![American Airlines logo]()
$645
This Delta deal was found by Cheapflights users on 8/12. 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.
Sun 9/278:00 am -
2 stops19h 30m
Sat 10/31:35 am -
2 stops20h 09m
Deal found 8/12![Delta logo]()
$411
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 10/274:42 pm -
1 stop11h 55m
Fri 10/301:17 am -
1 stop11h 27m
Deal found 8/13![Alaska Airlines logo]()
$459
This American Airlines deal was found by Cheapflights users on 8/10. 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 9/178:30 am -
2 stops14h 03m
Mon 9/219:18 am -
2 stops11h 25m
Deal found 8/10![American Airlines logo]()
$655
This Delta deal was found by Cheapflights users on 8/11. 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 9/37:00 am -
2 stops14h 16m
Mon 9/77:35 am -
2 stops14h 06m
Deal found 8/11![Delta logo]()
$447
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:16 am -
2 stops12h 17m
Mon 9/711:53 am -
1 stop23h 28m
Deal found 8/12![American Airlines logo]()
$686
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 9/186:29 am -
1 stop17h 57m
Fri 9/255:03 am -
1 stop10h 35m
Deal found 8/13![Alaska Airlines logo]()
$541
This Delta deal was found by Cheapflights users on 8/10. 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.
Wed 8/197:00 am -
2 stops14h 16m
Wed 9/97:23 am -
2 stops12h 53m
Deal found 8/10![Delta logo]()
$552
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 9/107:36 pm -
1 stop28h 50m
Tue 9/155:03 am -
1 stop10h 35m
Deal found 8/13![Alaska Airlines logo]()
$611
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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.
Thu 10/16:29 am -
1 stop9h 59m
Thu 10/87:16 am -
1 stop13h 43m
Deal found 8/10![Alaska Airlines logo]()
$649
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 9/177:36 pm -
1 stop15h 44m
Mon 9/215:31 pm -
1 stop17h 50m
Deal found 8/13![Alaska Airlines logo]()
$694
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 9/226:29 am -
3 stops32h 48m
Tue 9/295:45 pm -
3 stops21h 53m
Deal found 8/13![Alaska Airlines logo]()
$705
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 8/196:35 am -
3 stops40h 34m
Wed 9/99:48 am -
2 stops29h 50m
Deal found 8/13![Alaska Airlines logo]()
$712
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:42 pm -
2 stops31h 47m
Wed 10/217:16 am -
2 stops37h 43m
Deal found 8/12![Alaska Airlines logo]()
$728
Last-minute flights from St. Louis to AlaskaDiscover last-minute flight deals from St. Louis to Alaska. Data last updated August 14, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Alaska. Data last updated August 14, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/12. 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.
Thu 9/106:15 am -
1 stop13h 59m
Fri 9/186:00 am -
1 stop14h 16m
Deal found 8/12![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 8/12. 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 9/116:15 am -
1 stop13h 59m
Fri 9/186:00 am -
1 stop14h 16m
Deal found 8/12![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 8/11. 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 -
2 stops11h 35m
Tue 9/2210:10 pm -
1 stop7h 30m
Deal found 8/11![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Fri 9/114:40 pm -
1 stop9h 25m
Fri 9/183:30 pm -
2 stops15h 42m
Deal found 8/10![United Airlines logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 9/116:08 pm -
2 stops18h 56m
Mon 9/211:59 am -
1 stop13h 39m
Deal found 8/11![Alaska Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:36 pm -
2 stops13h 39m
Thu 9/171:59 am -
1 stop19h 00m
Deal found 8/12![Alaska Airlines logo]()
$392
This Booking.com deal was found by Cheapflights users on 8/13. 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.
Sat 9/126:08 pm -
1 stop19h 03m
Sat 9/195:09 pm -
1 stop27h 50m
Deal found 8/13![Alaska Airlines logo]()
$390
This Priceline deal was found by Cheapflights users on 8/13. 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.
Wed 9/166:08 pm -
2 stops21h 45m
Sun 9/209:44 pm -
2 stops23h 15m
Deal found 8/13![Alaska Airlines logo]()
$353
This Priceline deal was found by Cheapflights users on 8/13. 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.
Tue 9/226:29 am -
2 stops11h 29m
Mon 9/281:59 am -
1 stop13h 39m
Deal found 8/13![Alaska Airlines logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 9/226:29 am -
1 stop19h 17m
Mon 9/285:30 am -
1 stop15h 29m
Deal found 8/10![Alaska Airlines logo]()
$406
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:29 am -
1 stop9h 24m
Wed 9/305:30 am -
1 stop10h 08m
Deal found 8/12![Alaska Airlines logo]()
$344
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:29 am -
1 stop19h 17m
Sun 10/44:06 pm -
1 stop28h 53m
Deal found 8/12![Alaska Airlines logo]()
$340
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 14, 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 14, 2026.
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:50 pm -
1 stop11h 55m
Deal found 8/10![Southwest logo]()
$172
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/1610:53 am -
1 stop11h 23m
Deal found 8/11![United Airlines logo]()
$172
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Fri 9/1110:53 am -
2 stops15h 12m
Deal found 8/10![United Airlines logo]()
$178
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/61:36 pm -
1 stop8h 59m
Deal found 8/12![United Airlines logo]()
$181
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/1110:53 am -
1 stop11h 23m
Deal found 8/14![United Airlines logo]()
$203
This Priceline deal was found by Cheapflights users on 8/11. 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 9/246:29 am -
2 stops13h 55m
Deal found 8/11![Alaska Airlines logo]()
$209
This Booking.com deal was found by Cheapflights users on 8/14. 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 9/116:08 pm -
2 stops21h 45m
Deal found 8/14![Alaska Airlines logo]()
$209
This Priceline deal was found by Cheapflights users on 8/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:04 am -
2 stops21h 44m
Deal found 8/12![Alaska Airlines logo]()
$238
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:08 pm -
2 stops18h 28m
Deal found 8/12![Alaska Airlines logo]()
$243
This Delta deal was found by Cheapflights users on 8/14. 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 8/14![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 8/10. 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.
Sat 8/227:00 am -
1 stop15h 00m
Deal found 8/10![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 8/11. 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 8/224:40 pm -
1 stop9h 19m
Deal found 8/11![United Airlines logo]()
$333
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 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $340 (Trip.com) |
One-way from | $172 (Southwest) |
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 14, 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
Sun 9/27
6:29 am-10:46 pm
1 stop19h 17m
Fairbanks
Sun 10/4
4:06 pm-11:59 pm
1 stop28h 53m
$340
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Fri 9/11
6:15 am-5:14 pm
1 stop13h 59m
Anchorage
Fri 9/18
6:00 am-11:16 pm
1 stop14h 16m
$343
Quickest round-trip
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Tue 9/22
3:52 pm-9:00 pm
1 stop8h 08m
Anchorage
Tue 9/29
10:10 pm-10:31 am
1 stop9h 21m
$343
St. LouisFairbanks
STL Lambert-St Louis - FAI Fairbanks
STLFAI
Lambert-St Louis
Wed 9/23
6:29 am-12:53 pm
1 stop9h 24m
Fairbanks
Wed 9/30
5:30 am-6:38 pm
1 stop10h 08m
$344
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Tue 10/13
7:02 am-8:49 pm
2 stops16h 47m
Anchorage
Thu 10/15
2:29 am-11:59 pm
1 stop18h 30m
$348
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Thu 9/10
6:15 am-5:14 pm
1 stop13h 59m
Anchorage
Fri 9/18
6:00 am-11:16 pm
1 stop14h 16m
$352
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Thu 12/10
2:20 pm-10:36 pm
2 stops11h 16m
Anchorage
Sun 12/13
6:00 am-12:40 am
2 stops15h 40m
$355
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Wed 9/23
2:25 pm-12:27 am
2 stops13h 02m
Anchorage
Mon 9/28
8:00 am-12:44 am
2 stops13h 44m
$355
St. LouisFairbanks
STL Lambert-St Louis - FAI Fairbanks
STLFAI
Lambert-St Louis
Fri 10/30
9:47 am-12:45 am
2 stops17h 58m
Fairbanks
Tue 11/10
1:42 am-11:56 pm
2 stops19h 14m
$355
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Thu 12/10
1:08 pm-7:40 pm
1 stop9h 32m
Anchorage
Sun 12/13
11:40 pm-3:41 pm
2 stops13h 01m
$386
Showing 1-10 of 43 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-FAI
STL-ANC
STL-KTN
STL-JNU
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-FAI
STL-ANC
STL-KTN
STL-JNU
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 $758 in September.The cheapest round-trip price found within the last 5 days was $343 on Delta (Sep 11-Sep 18).
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 14, 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.
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
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.
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Alternative routes for St. Louis to Alaska
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Complete your trip
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St. Louis and Alaska flights
Browse other St. Louis and Alaska flight options. Last updated on August 14, 2026.
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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 2,558,603 searches. Data last updated August 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$295 | Average$683 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$356 | Average$688 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$364 | Average$534 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$384 | Average$584 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$524 | Average$703 | FlexibilityNo cancel fee | On-time63% |