$177+ Cheap flights from Seattle (SEA) to South Dakota
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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FSD
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to South Dakota with Cheapflights
1. Tell us where you want to go
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Cheapest flights from Seattle to South DakotaExplore the most affordable flight options available from Seattle to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
Explore the most affordable flight options available from Seattle to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:14 pm -
2 stops27h 53m
Sun 11/812:06 pm -
1 stop22h 39m
Deal found 9/10![Multiple Airlines logo]()
$295
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1310:56 pm -
1 stop9h 36m
Sat 11/141:20 pm -
1 stop6h 39m
Deal found 9/10![United Airlines logo]()
$329
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 10/216:00 am -
1 stop8h 58m
Wed 10/284:38 pm -
1 stop8h 21m
Deal found 9/13![Delta logo]()
$349
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:16 pm -
2 stops9h 14m
Wed 10/215:00 am -
1 stop6h 01m
Deal found 9/14![United Airlines logo]()
$354
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:27 pm -
1 stop25h 40m
Mon 10/58:52 pm -
1 stop20h 16m
Deal found 9/13![Frontier logo]()
$354
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/174:27 pm -
1 stop25h 40m
Mon 9/288:52 pm -
1 stop20h 16m
Deal found 9/11![Frontier logo]()
$355
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:05 am -
1 stop5h 53m
Sun 11/85:00 am -
1 stop5h 47m
Deal found 9/10![United Airlines logo]()
$357
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.
Sat 10/317:30 am -
1 stop7h 53m
Wed 11/46:00 am -
1 stop10h 51m
Deal found 9/13![American Airlines logo]()
$359
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:00 am -
1 stop5h 49m
Sat 10/179:42 am -
2 stops11h 02m
Deal found 9/14![United Airlines logo]()
$364
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:50 pm -
1 stop8h 10m
Tue 10/208:30 am -
1 stop6h 00m
Deal found 9/15![Delta logo]()
$379
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.
Sat 10/105:00 am -
1 stop6h 26m
Tue 10/137:05 am -
2 stops9h 28m
Deal found 9/11![United Airlines logo]()
$382
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.
Sat 10/1710:26 am -
1 stop8h 47m
Tue 10/208:05 am -
1 stop7h 42m
Deal found 9/11![American Airlines logo]()
$389
Best flights from Seattle to South DakotaDiscover carefully curated flight deals from Seattle to South Dakota that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Seattle to South Dakota that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
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 10/216:00 am -
1 stop6h 57m
Thu 10/294:38 pm -
1 stop8h 21m
Deal found 9/13![Delta logo]()
$349
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/173:49 pm -
1 stop5h 55m
Thu 11/267:48 am -
1 stop10h 31m
Deal found 9/13![United Airlines logo]()
$359
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:42 pm -
1 stop7h 40m
Sat 11/145:00 pm -
1 stop5h 46m
Deal found 9/12![Delta logo]()
$359
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/35:07 am -
1 stop6h 23m
Sat 2/64:40 pm -
1 stop5h 32m
Deal found 9/10![United Airlines logo]()
$409
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.
Sat 9/265:00 am -
1 stop5h 49m
Wed 9/305:04 pm -
1 stop6h 11m
Deal found 9/11![United Airlines logo]()
$409
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 10/231:42 pm -
1 stop7h 48m
Sat 10/246:39 am -
2 stops13h 26m
Deal found 9/13![Delta logo]()
$457
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/125:07 am -
1 stop6h 23m
Wed 1/207:05 am -
2 stops10h 04m
Deal found 9/14![United Airlines logo]()
$434
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/125:07 am -
1 stop6h 23m
Thu 1/212:40 pm -
2 stops9h 51m
Deal found 9/14![United Airlines logo]()
$434
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.
Sat 10/316:00 am -
1 stop6h 27m
Sun 11/110:50 am -
1 stop8h 08m
Deal found 9/14![Delta logo]()
$482
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/146:29 am -
2 stops11h 39m
Wed 1/207:05 am -
2 stops9h 43m
Deal found 9/14![United Airlines logo]()
$439
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.
Tue 11/106:00 am -
1 stop6h 31m
Sat 11/143:36 pm -
1 stop7h 10m
Deal found 9/10![Delta logo]()
$543
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:56 pm -
1 stop7h 15m
Sun 10/46:00 am -
1 stop6h 01m
Deal found 9/10![United Airlines logo]()
$454
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.
Sat 10/171:56 pm -
1 stop7h 15m
Tue 10/207:50 am -
2 stops14h 47m
Deal found 9/12![United Airlines logo]()
$454
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 9/2912:00 pm -
1 stop5h 35m
Sat 10/32:56 pm -
1 stop7h 40m
Deal found 9/14![Delta logo]()
$582
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 9/256:00 am -
1 stop6h 06m
Tue 9/292:56 pm -
2 stops9h 14m
Deal found 9/10![Delta logo]()
$961
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:00 am -
1 stop6h 27m
Sun 10/116:34 am -
1 stop6h 25m
Deal found 9/12![Delta logo]()
$1,036
Last-minute flights from Seattle to South DakotaDiscover last-minute flight deals from Seattle to South Dakota. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to South Dakota. Data last updated September 15, 2026 and is based on user searches.
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/174:27 pm -
1 stop25h 40m
Mon 9/288:52 pm -
1 stop20h 16m
Deal found 9/11![Frontier logo]()
$355
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:27 pm -
1 stop25h 40m
Mon 10/58:52 pm -
1 stop20h 16m
Deal found 9/13![Frontier logo]()
$354
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.
Thu 10/12:27 pm -
1 stop5h 25m
Sat 10/34:41 pm -
1 stop5h 34m
Deal found 9/11![United Airlines logo]()
$404
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:27 pm -
1 stop7h 17m
Mon 10/56:50 pm -
1 stop6h 09m
Deal found 9/13![United Airlines logo]()
$394
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:00 am -
1 stop5h 49m
Sat 10/179:42 am -
2 stops11h 02m
Deal found 9/14![United Airlines logo]()
$364
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.
Sat 10/105:00 am -
1 stop6h 26m
Tue 10/137:05 am -
2 stops9h 28m
Deal found 9/11![United Airlines logo]()
$382
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:16 pm -
2 stops9h 14m
Wed 10/215:00 am -
1 stop6h 01m
Deal found 9/14![United Airlines logo]()
$354
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/141:56 pm -
1 stop7h 15m
Wed 10/216:00 am -
2 stops8h 23m
Deal found 9/14![United Airlines logo]()
$393
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:50 pm -
1 stop8h 10m
Tue 10/208:30 am -
1 stop6h 00m
Deal found 9/15![Delta logo]()
$379
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.
Sat 10/1710:26 am -
1 stop8h 47m
Tue 10/208:05 am -
1 stop7h 42m
Deal found 9/11![American Airlines logo]()
$389
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 10/216:00 am -
1 stop8h 58m
Wed 10/284:38 pm -
1 stop8h 21m
Deal found 9/13![Delta logo]()
$349
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.
Sat 10/317:30 am -
1 stop7h 53m
Wed 11/46:00 am -
1 stop10h 51m
Deal found 9/13![American Airlines logo]()
$359
One-way flights from Seattle to South DakotaSearch for one-way flight options from Seattle to South Dakota. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from Seattle to South Dakota. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
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 10/229:16 pm -
1 stop12h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$177
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.
Tue 10/138:00 pm -
2 stops40h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$200
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:27 pm -
2 stops26h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$248
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.
Wed 9/239:45 pm -
2 stops33h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$274
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:27 pm -
1 stop5h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![United Airlines logo]()
$283
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.
Tue 10/135:00 am -
1 stop10h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![American Airlines logo]()
$303
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.
Thu 10/2212:04 pm -
1 stop7h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![American Airlines logo]()
$303
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.
Tue 12/229:01 pm -
1 stop12h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$318
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/285:00 am -
2 stops13h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![United Airlines logo]()
$404
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:55 pm -
1 stop5h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$433
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.
Thu 10/229:57 am -
2 stops12h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Alaska Airlines logo]()
$435
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.
Sun 9/206:32 am -
2 stops9h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![United Airlines logo]()
$438
Find flight deals from Seattle to South Dakota
Keep the following information in mind while searching for Seattle to South Dakota flight deals. Data was last updated September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $295 (Kiwi.com) |
One-way from | $99 (Kiwi.com) |
Popular in | May |
Cheapest in | November |
Average price | $456 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to South Dakota 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 15, 2026.
Use the filters below to find and compare flights from Seattle to South Dakota that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Thu 10/22
9:16 pm-11:16 am
1 stop12h 00m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$177
SeattleRapid City
SEA Seattle/Tacoma Intl - RAP Rapid City
SEARAP
Seattle/Tacoma Intl
Tue 10/13
8:00 pm-1:45 pm
2 stops40h 45m
Rapid City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$200
SeattleRapid City
SEA Seattle/Tacoma Intl - RAP Rapid City
SEARAP
Seattle/Tacoma Intl
Fri 10/16
4:27 pm-7:53 pm
2 stops26h 26m
Rapid City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$248
SeattleRapid City
SEA Seattle/Tacoma Intl - RAP Rapid City
SEARAP
Seattle/Tacoma Intl
Tue 10/13
5:00 am-4:25 pm
1 stop10h 25m
Rapid City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$303
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Thu 10/22
12:04 pm-9:13 pm
1 stop7h 09m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$303
SeattleRapid City
SEA Seattle/Tacoma Intl - RAP Rapid City
SEARAP
Seattle/Tacoma Intl
Wed 10/21
6:00 am-1:57 pm
1 stop6h 57m
Rapid City
Thu 10/29
4:38 pm-11:59 pm
1 stop8h 21m
$349
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Tue 11/17
3:49 pm-11:44 pm
1 stop5h 55m
Sioux Falls Joe Foss Field
Thu 11/26
7:48 am-4:19 pm
1 stop10h 31m
$359
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Wed 11/4
1:42 pm-11:22 pm
1 stop7h 40m
Sioux Falls Joe Foss Field
Sat 11/14
5:00 pm-8:46 pm
1 stop5h 46m
$359
SeattleSioux Falls
SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field
SEAFSD
Seattle/Tacoma Intl
Mon 12/28
5:00 am-8:15 pm
2 stops13h 15m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$404
SeattleRapid City
SEA Seattle/Tacoma Intl - RAP Rapid City
SEARAP
Seattle/Tacoma Intl
Wed 2/3
5:07 am-12:30 pm
1 stop6h 23m
Rapid City
Sat 2/6
4:40 pm-9:12 pm
1 stop5h 32m
$409
Showing 1-10 of 27 resultsSorted by cheapest first
Best time to book a flight from Seattle to South Dakota
Have a flexible travel schedule? Discover the best time to fly to South Dakota from Seattle with our price prediction graph.
SEA-FSD
SEA-RAP
SEA-ABR
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 Seattle to South Dakota
SEA-USSD
SEA-FSD
SEA-RAP
SEA-ABR
What is the cheapest month to book a flight from Seattle to South Dakota?
Currently, November is the cheapest month in which you can book a flight from Seattle to South Dakota (average of $336). Flying from Seattle to South Dakota in June is currently the most expensive (average of $627). 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 Seattle to South Dakota?
Airfare is below average for this route at the moment.
Seattle to South Dakota flights typically cost between $373 and $546 in November.The cheapest round-trip price found within the last 5 days was $329 on United Airlines (Nov 13-Nov 14).
How far ahead should I book a flight from Seattle to South Dakota?
The best time to book flights from Seattle to South Dakota is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing South Dakota
Get insights into the airlines that provide service to South Dakota. 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 South Dakota. Reviews last updated September 15, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Seattle to South Dakota have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Overall
7.8
Comfort
7.8
Boarding
8.1
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Seattle to South Dakota. 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 Seattle to South Dakota
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to South Dakota by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to South Dakota by cabin class
Find flights from Seattle to South Dakota, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and South Dakota flights
Browse other Seattle and South Dakota flight options. Last updated on September 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Seattle to South Dakota flights
Consider these flights traveling from Seattle to South Dakota.
Top 3 airlines flying from Seattle to South Dakota
Discover the top 3 airlines that operate flights from Seattle to South Dakota. 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 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$190 | Average$468 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$268 | Average$446 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$286 | Average$538 | FlexibilityNo cancel fee | On-time69% |