$216+ Cheap flights from South Dakota to Seattle (SEA)
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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — SEA
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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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 South Dakota to SeattleExplore the most affordable flight options available from South Dakota to Seattle. 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 South Dakota to Seattle. 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.
Mon 10/261:41 pm -
1 stop23h 18m
Thu 10/299:13 pm -
1 stop12h 03m
Deal found 9/10![Multiple Airlines logo]()
$238
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.
Thu 10/295:54 pm -
1 stop8h 16m
Mon 11/23:00 pm -
1 stop6h 49m
Deal found 9/11![American Airlines logo]()
$339
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.
Sat 12/55:07 pm -
1 stop6h 14m
Tue 12/88:30 am -
2 stops11h 13m
Deal found 9/10![United Airlines logo]()
$344
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:52 pm -
1 stop20h 16m
Sun 9/274:27 pm -
1 stop25h 40m
Deal found 9/10![Frontier logo]()
$350
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:04 pm -
1 stop6h 11m
Sat 10/173:55 pm -
1 stop5h 49m
Deal found 9/9![United Airlines logo]()
$358
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.
Sun 11/225:00 pm -
1 stop8h 57m
Tue 12/111:37 pm -
1 stop8h 40m
Deal found 9/13![Delta logo]()
$359
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.
Wed 11/49:32 am -
2 stops8h 55m
Sat 11/78:30 am -
1 stop5h 55m
Deal found 9/11![United Airlines logo]()
$364
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:52 pm -
1 stop20h 16m
Thu 10/14:27 pm -
1 stop25h 40m
Deal found 9/14![Frontier logo]()
$365
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 11/235:00 pm -
1 stop8h 57m
Thu 12/311:37 pm -
1 stop8h 40m
Deal found 9/13![Delta logo]()
$379
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:53 pm -
1 stop8h 51m
Mon 10/1212:25 am -
1 stop9h 48m
Deal found 9/10![American Airlines logo]()
$389
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.
Sat 12/129:24 am -
2 stops8h 59m
Tue 12/151:14 pm -
2 stops8h 28m
Deal found 9/13![United Airlines logo]()
$390
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 9/297:05 am -
2 stops9h 28m
Mon 10/195:00 am -
1 stop5h 55m
Deal found 9/11![United Airlines logo]()
$392
Best flights from South Dakota to SeattleDiscover carefully curated flight deals from South Dakota to Seattle 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 South Dakota to Seattle 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.
Sun 11/225:00 pm -
1 stop8h 57m
Fri 12/48:25 am -
1 stop5h 55m
Deal found 9/13![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.
Sat 1/302:40 pm -
2 stops9h 51m
Wed 2/39:02 am -
2 stops10h 31m
Deal found 9/10![United Airlines logo]()
$419
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.
Fri 11/131:00 pm -
1 stop6h 10m
Sun 11/156:00 am -
1 stop7h 58m
Deal found 9/11![Delta 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.
Fri 12/42:35 pm -
1 stop7h 46m
Tue 12/85:05 am -
1 stop6h 58m
Deal found 9/14![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/305:00 pm -
1 stop6h 12m
Wed 2/32:30 pm -
1 stop7h 20m
Deal found 9/9![United Airlines logo]()
$429
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 10/299:32 am -
2 stops11h 01m
Mon 11/23:49 pm -
1 stop5h 55m
Deal found 9/11![United Airlines logo]()
$434
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 2/45:30 am -
2 stops7h 53m
Tue 2/96:29 am -
2 stops11h 39m
Deal found 9/12![United Airlines logo]()
$439
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.
Sat 12/59:45 am -
2 stops10h 24m
Tue 12/85:24 pm -
2 stops15h 08m
Deal found 9/10![United Airlines logo]()
$439
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 9/2911:35 am -
1 stop8h 02m
Sun 10/45:00 am -
1 stop5h 49m
Deal found 9/10![United Airlines logo]()
$442
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 9/297:05 am -
2 stops9h 28m
Sat 10/35:00 am -
1 stop6h 26m
Deal found 9/14![United Airlines logo]()
$445
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 10/211:17 am -
2 stops11h 42m
Mon 10/56:30 am -
2 stops13h 22m
Deal found 9/13![United Airlines logo]()
$543
Last-minute flights from South Dakota to SeattleDiscover last-minute flight deals from South Dakota to Seattle. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from South Dakota to Seattle. Data last updated September 15, 2026 and is based on user searches.
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:52 pm -
1 stop20h 16m
Sun 9/274:27 pm -
1 stop25h 40m
Deal found 9/10![Frontier logo]()
$350
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:02 pm -
2 stops24h 38m
Wed 10/79:45 pm -
1 stop11h 31m
Deal found 9/11![Multiple Airlines logo]()
$419
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:52 pm -
1 stop20h 16m
Thu 10/14:27 pm -
1 stop25h 40m
Deal found 9/14![Frontier logo]()
$365
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.
Mon 9/288:52 pm -
1 stop20h 16m
Thu 10/110:53 am -
2 stops22h 07m
Deal found 9/14![Multiple Airlines logo]()
$414
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 9/297:05 am -
2 stops9h 28m
Mon 10/195:00 am -
1 stop5h 55m
Deal found 9/11![United Airlines logo]()
$392
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.
Tue 9/2911:45 am -
1 stop6h 49m
Sat 10/35:30 am -
1 stop9h 53m
Deal found 9/14![American Airlines logo]()
$399
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 9/297:05 am -
2 stops9h 28m
Sat 10/35:00 am -
1 stop6h 26m
Deal found 9/14![United Airlines logo]()
$445
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:53 pm -
1 stop8h 51m
Mon 10/1212:25 am -
1 stop9h 48m
Deal found 9/10![American Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:04 pm -
1 stop6h 11m
Sat 10/173:55 pm -
1 stop5h 49m
Deal found 9/9![United Airlines logo]()
$358
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.
Mon 10/261:41 pm -
1 stop23h 18m
Thu 10/299:13 pm -
1 stop12h 03m
Deal found 9/10![Multiple Airlines logo]()
$238
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.
Thu 10/295:54 pm -
1 stop8h 16m
Mon 11/23:00 pm -
1 stop6h 49m
Deal found 9/11![American Airlines logo]()
$339
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.
Thu 10/2911:00 am -
1 stop7h 58m
Sun 11/16:00 am -
1 stop8h 00m
Deal found 9/12![Delta logo]()
$359
One-way flights from South Dakota to SeattleSearch for one-way flight options from South Dakota to Seattle. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from South Dakota to Seattle. 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 9/13. 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.
Sun 10/185:35 pm -
2 stops50h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$216
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 10/152:35 pm -
1 stop20h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$217
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 10/1610:06 pm -
2 stops21h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$226
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.
Sat 10/38:43 pm -
2 stops43h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$227
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.
Sun 10/115:35 pm -
1 stop17h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$229
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.
Mon 10/199:19 pm -
2 stops18h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$235
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/251:56 pm -
1 stop21h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$238
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.
Wed 10/147:05 am -
1 stop7h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$253
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 3/21:45 pm -
1 stop6h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$283
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.
Sat 10/3112:58 pm -
2 stops32h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$288
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:53 pm -
1 stop8h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![American Airlines logo]()
$293
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 10/243:03 pm -
1 stop9h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![United Airlines logo]()
$303
Find flight deals from South Dakota to Seattle
Keep the following information in mind while searching for South Dakota to Seattle flight deals. Data was last updated September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $238 (Kiwi.com) |
One-way from | $216 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $436 |
Cheapflights Fare Finder
Customize your flight search to find flights from South Dakota to Seattle 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 South Dakota to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Sun 10/25
1:56 pm-9:48 am
1 stop21h 52m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$238
Rapid CitySeattle
RAP Rapid City - SEA Seattle/Tacoma Intl
RAPSEA
Rapid City
Wed 10/14
7:05 am-1:21 pm
1 stop7h 16m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$253
Rapid CitySeattle
RAP Rapid City - SEA Seattle/Tacoma Intl
RAPSEA
Rapid City
Tue 10/20
6:39 am-12:30 pm
1 stop6h 51m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$253
Rapid CitySeattle
RAP Rapid City - SEA Seattle/Tacoma Intl
RAPSEA
Rapid City
Sat 10/31
10:24 am-7:44 pm
1 stop10h 20m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$273
Rapid CitySeattle
RAP Rapid City - SEA Seattle/Tacoma Intl
RAPSEA
Rapid City
Sat 10/31
11:12 am-6:46 pm
2 stops8h 34m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$278
Quickest round-trip
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Tue 3/2
1:45 pm-6:09 pm
1 stop6h 24m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$283
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Sat 10/31
12:58 pm-7:54 pm
2 stops32h 56m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$288
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Wed 3/3
6:00 am-2:18 pm
2 stops10h 18m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$288
Sioux FallsSeattle
FSD Sioux Falls Joe Foss Field - SEA Seattle/Tacoma Intl
FSDSEA
Sioux Falls Joe Foss Field
Sat 10/24
3:03 pm-10:56 pm
1 stop9h 53m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$303
Rapid CitySeattle
RAP Rapid City - SEA Seattle/Tacoma Intl
RAPSEA
Rapid City
Fri 10/2
11:17 am-7:29 pm
2 stops9h 12m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$308
Showing 1-10 of 25 resultsSorted by cheapest first
Best time to book a flight from South Dakota to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from South Dakota with our price prediction graph.
FSD-SEA
RAP-SEA
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.
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Everything you need to know about your flight from South Dakota to Seattle
USSD-SEA
FSD-SEA
RAP-SEA
What is the cheapest month to book a flight from South Dakota to Seattle?
Currently, January is the cheapest month in which you can book a flight from South Dakota to Seattle (average of $344). Flying from South Dakota to Seattle in July is currently the most expensive (average of $643). 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 South Dakota to Seattle?
Airfare is below average for this route at the moment.
South Dakota to Seattle flights typically cost between $348 and $550 in October.The cheapest round-trip price found within the last 5 days was $238 on Multiple Airlines (Oct 26-Oct 29).
How far ahead should I book a flight from South Dakota to Seattle?
To ensure you get the cheapest price possible for a flight from South Dakota to Seattle, you should look to book at least 19 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Related info for your journey
Find useful and relevant information for your journey from South Dakota to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
Poulsbo
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Alternative routes for South Dakota to Seattle
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Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from South Dakota to Seattle by cabin class
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South Dakota and Seattle flights
Browse other South Dakota and Seattle flight options. Last updated on September 15, 2026.
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Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2026.
South Dakota to Seattle flights
Consider these flights traveling from South Dakota to Seattle.
Top 3 airlines flying from South Dakota to Seattle
Discover the top 3 airlines that operate flights from South Dakota to Seattle. 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$250 | Average$439 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$273 | Average$443 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$313 | Average$435 | FlexibilityNo cancel fee | On-time71% |