$213+ Cheap flights from St. Louis (STL) to Alaska
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ANC
Oct 16 — Oct 231
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
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
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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 September 16, 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 September 16, 2026.
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 10/276:32 am -
1 stop15h 45m
Wed 11/118:14 pm -
1 stop10h 16m
Deal found 9/11![American Airlines logo]()
$425
This Delta deal was found by Cheapflights users on 9/13. 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.
Fri 11/132:20 pm -
2 stops12h 04m
Thu 11/1910:06 pm -
1 stop11h 11m
Deal found 9/13![Delta logo]()
$430
This Delta deal was found by Cheapflights users on 9/13. 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 10/69:47 am -
1 stop14h 12m
Sun 10/116:30 am -
2 stops15h 14m
Deal found 9/13![Delta logo]()
$432
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Sun 10/115:40 am -
1 stop16h 37m
Sun 10/188:22 pm -
1 stop18h 58m
Deal found 9/11![American Airlines logo]()
$445
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 10/2710:53 am -
2 stops15h 03m
Wed 11/1111:59 pm -
1 stop9h 39m
Deal found 9/11![United Airlines logo]()
$450
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 11/109:45 am -
1 stop14h 11m
Sat 11/141:15 am -
2 stops12h 16m
Deal found 9/11![Delta logo]()
$452
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 11/27:00 am -
1 stop31h 06m
Tue 11/35:28 pm -
1 stop17h 57m
Deal found 9/10![Alaska Airlines logo]()
$456
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 10/2712:28 pm -
2 stops15h 07m
Wed 11/116:15 am -
2 stops14h 03m
Deal found 9/11![Delta logo]()
$457
This Delta deal was found by Cheapflights users on 9/13. 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.
Wed 12/212:31 pm -
2 stops15h 06m
Tue 12/81:47 am -
2 stops16h 41m
Deal found 9/13![Delta logo]()
$457
This United Airlines deal was found by Cheapflights users on 9/12. 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 12/101:18 pm -
2 stops12h 41m
Sat 12/1212:07 am -
2 stops15h 09m
Deal found 9/12![United Airlines logo]()
$472
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
Sun 12/67:00 am -
2 stops29h 06m
Sat 12/125:00 am -
2 stops15h 59m
Deal found 9/11![Alaska Airlines logo]()
$484
This Delta deal was found by Cheapflights users on 9/11. 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.
Sun 10/117:00 pm -
2 stops32h 45m
Sat 10/171:50 am -
2 stops19h 54m
Deal found 9/11![Delta logo]()
$485
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 September 16, 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 September 16, 2026.
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 10/276:32 am -
1 stop15h 45m
Wed 11/118:14 pm -
1 stop10h 16m
Deal found 9/11![American Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 10/2710:53 am -
2 stops15h 03m
Wed 11/1111:59 pm -
1 stop9h 39m
Deal found 9/11![United Airlines logo]()
$450
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 11/109:45 am -
1 stop14h 11m
Sat 11/141:15 am -
2 stops12h 16m
Deal found 9/11![Delta logo]()
$452
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:42 pm -
1 stop11h 55m
Tue 10/135:09 am -
2 stops15h 50m
Deal found 9/14![Alaska Airlines logo]()
$488
This United Airlines deal was found by Cheapflights users on 9/12. 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 12/101:18 pm -
1 stop9h 21m
Sat 12/1212:07 am -
2 stops15h 09m
Deal found 9/12![United Airlines logo]()
$452
This Delta deal was found by Cheapflights users on 9/11. 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.
Sun 10/117:00 pm -
2 stops32h 45m
Sat 10/171:50 am -
2 stops19h 54m
Deal found 9/11![Delta logo]()
$485
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:04 am -
1 stop9h 58m
Fri 12/112:18 am -
1 stop11h 22m
Deal found 9/14![Alaska Airlines logo]()
$504
This Delta deal was found by Cheapflights users on 9/14. 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.
Tue 12/17:08 am -
2 stops19h 20m
Tue 12/810:07 pm -
1 stop13h 37m
Deal found 9/14![Delta logo]()
$489
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 11/2011:14 am -
2 stops16h 37m
Wed 11/252:31 am -
2 stops18h 27m
Deal found 9/13![American Airlines logo]()
$606
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:00 am -
1 stop9h 51m
Mon 11/305:04 am -
2 stops32h 36m
Deal found 9/14![Alaska Airlines logo]()
$578
This Delta deal was found by Cheapflights users on 9/14. 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.
Fri 10/23:52 pm -
1 stop11h 53m
Mon 10/51:40 am -
2 stops13h 04m
Deal found 9/14![Delta logo]()
$526
This Delta deal was found by Cheapflights users on 9/11. 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.
Mon 10/127:00 am -
2 stops20h 45m
Fri 10/161:50 am -
2 stops16h 19m
Deal found 9/11![Delta logo]()
$546
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 10/137:02 am -
1 stop17h 27m
Tue 10/207:13 am -
1 stop13h 46m
Deal found 9/13![Alaska Airlines logo]()
$801
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 11/206:00 am -
2 stops18h 32m
Thu 11/269:50 am -
3 stops25h 32m
Deal found 9/13![Alaska Airlines logo]()
$806
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:10 am -
2 stops14h 31m
Thu 11/128:25 pm -
2 stops39h 56m
Deal found 9/14![Alaska Airlines logo]()
$812
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:29 am -
1 stop18h 22m
Sat 10/36:33 pm -
1 stop26h 26m
Deal found 9/14![Alaska Airlines logo]()
$843
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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.
Tue 2/23:54 pm -
1 stop11h 34m
Wed 2/36:33 pm -
1 stop17h 23m
Deal found 9/12![Alaska Airlines logo]()
$846
Last-minute flights from St. Louis to AlaskaDiscover last-minute flight deals from St. Louis to Alaska. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Alaska. Data last updated September 16, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/13. 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.
Mon 9/288:46 am -
2 stops18h 44m
Fri 10/22:30 pm -
2 stops16h 04m
Deal found 9/13![Delta logo]()
$487
This Delta deal was found by Cheapflights users on 9/14. 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.
Tue 9/297:05 am -
2 stops14h 11m
Sat 10/37:23 am -
2 stops12h 53m
Deal found 9/14![Delta logo]()
$487
This Delta deal was found by Cheapflights users on 9/14. 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.
Fri 10/23:52 pm -
1 stop11h 53m
Mon 10/51:40 am -
2 stops13h 04m
Deal found 9/14![Delta logo]()
$526
This Delta deal was found by Cheapflights users on 9/13. 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 10/69:47 am -
1 stop14h 12m
Sun 10/116:30 am -
2 stops15h 14m
Deal found 9/13![Delta logo]()
$432
This American Airlines deal was found by Cheapflights users on 9/13. 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 10/610:12 am -
1 stop12h 05m
Sun 10/118:22 pm -
1 stop18h 58m
Deal found 9/13![American Airlines logo]()
$480
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:42 pm -
1 stop11h 55m
Tue 10/135:09 am -
2 stops15h 50m
Deal found 9/14![Alaska Airlines logo]()
$488
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Sun 10/115:40 am -
1 stop16h 37m
Sun 10/188:22 pm -
1 stop18h 58m
Deal found 9/11![American Airlines logo]()
$445
This Delta deal was found by Cheapflights users on 9/11. 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.
Sun 10/117:00 pm -
2 stops32h 45m
Sat 10/171:50 am -
2 stops19h 54m
Deal found 9/11![Delta logo]()
$485
This Delta deal was found by Cheapflights users on 9/14. 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.
Sun 10/117:45 am -
2 stops15h 56m
Tue 10/201:40 am -
2 stops13h 04m
Deal found 9/14![Delta logo]()
$496
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 10/276:32 am -
1 stop15h 45m
Wed 11/118:14 pm -
1 stop10h 16m
Deal found 9/11![American Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 10/2710:53 am -
2 stops15h 03m
Wed 11/1111:59 pm -
1 stop9h 39m
Deal found 9/11![United Airlines logo]()
$450
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 10/2712:28 pm -
2 stops15h 07m
Wed 11/116:15 am -
2 stops14h 03m
Deal found 9/11![Delta logo]()
$457
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 September 16, 2026.
Search for one-way flight options from St. Louis to Alaska. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:32 am -
1 stop15h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![American Airlines logo]()
$213
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/87:45 am -
2 stops15h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Delta logo]()
$224
This American Airlines deal was found by Cheapflights users on 9/15. 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 11/212:48 pm -
2 stops15h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![American Airlines logo]()
$244
This Delta deal was found by Cheapflights users on 9/10. 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.
Fri 9/188:46 am -
1 stop15h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$297
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:49 pm -
1 stop10h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![American Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 9/14. 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.
Fri 9/2512:00 pm -
2 stops12h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Delta logo]()
$313
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:08 pm -
2 stops23h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Alaska Airlines logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 11/213:20 pm -
1 stop14h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Alaska Airlines logo]()
$322
This Priceline deal was found by Cheapflights users on 9/13. 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.
Sun 9/276:08 pm -
2 stops18h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Alaska Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:29 pm -
3 stops37h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$664
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 11/215:59 pm -
3 stops34h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$741
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/84:30 pm -
3 stops59h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$904
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 September 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $425 (American Airlines) |
One-way from | $213 (American Airlines) |
Popular in | July |
Cheapest in | February |
Average price | $547 |
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 September 16, 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 Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Thu 10/8
6:32 am-7:17 pm
1 stop15h 45m
Anchorage
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$213
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Thu 10/8
7:45 am-8:41 pm
2 stops15h 56m
Anchorage
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$224
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Fri 9/25
6:29 am-4:39 pm
1 stop13h 10m
Anchorage
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$307
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Sun 9/27
8:30 am-7:13 pm
1 stop13h 43m
Anchorage
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$307
Quickest round-trip
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Fri 9/25
1:49 pm-8:49 pm
1 stop10h 00m
Anchorage
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$307
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Fri 9/25
12:00 pm-9:00 pm
2 stops12h 00m
Anchorage
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$313
St. LouisFairbanks
STL Lambert-St Louis - FAI Fairbanks
STLFAI
Lambert-St Louis
Sat 11/21
3:20 pm-2:54 am
1 stop14h 34m
Fairbanks
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$322
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Tue 10/27
6:32 am-7:17 pm
1 stop15h 45m
Anchorage
Wed 11/11
8:14 pm-9:30 am
1 stop10h 16m
$425
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Tue 10/27
10:53 am-10:56 pm
2 stops15h 03m
Anchorage
Wed 11/11
11:59 pm-12:38 pm
1 stop9h 39m
$450
St. LouisAnchorage
STL Lambert-St Louis - ANC Anchorage
STLANC
Lambert-St Louis
Tue 11/10
9:45 am-8:56 pm
1 stop14h 11m
Anchorage
Sat 11/14
1:15 am-4:31 pm
2 stops12h 16m
$452
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 $459 and $644 in October.The cheapest round-trip price found within the last 5 days was $425 on American Airlines (Oct 27-Nov 11).
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 September 16, 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
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
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 September 16, 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 September 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$295 | Average$683 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$364 | Average$530 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$368 | Average$643 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$384 | Average$647 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$524 | Average$703 | FlexibilityNo cancel fee | On-time63% |