$214+ Cheap flights from Idaho 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — FSD
Oct 18 — Oct 251
Round-trip
1 adult, Economy
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Find cheap flights from Idaho to South Dakota with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Idaho to South DakotaExplore the most affordable flight options available from Idaho to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
Explore the most affordable flight options available from Idaho to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
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.
Fri 10/235:30 am -
1 stop8h 27m
Sat 11/146:45 am -
1 stop7h 06m
Deal found 9/15![Delta logo]()
$339
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 10/292:49 pm -
1 stop19h 27m
Sun 11/112:28 pm -
1 stop25h 12m
Deal found 9/14![Multiple Airlines logo]()
$341
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.
Wed 11/41:25 pm -
2 stops8h 05m
Wed 11/116:45 am -
1 stop6h 21m
Deal found 9/15![Delta logo]()
$344
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.
Wed 10/143:00 pm -
1 stop7h 22m
Wed 10/218:30 am -
1 stop5h 05m
Deal found 9/14![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.
Tue 10/134:08 pm -
1 stop5h 36m
Tue 10/209:42 am -
1 stop4h 54m
Deal found 9/14![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/235:30 am -
1 stop5h 15m
Sun 10/256:39 am -
1 stop5h 56m
Deal found 9/16![Delta logo]()
$354
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 10/311:06 pm -
2 stops8h 57m
Sun 11/88:30 am -
1 stop5h 05m
Deal found 9/15![Delta logo]()
$354
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/232:45 pm -
1 stop7h 11m
Tue 11/106:00 am -
2 stops12h 39m
Deal found 9/16![American Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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
Wed 10/147:05 am -
1 stop6h 31m
Deal found 9/16![United Airlines logo]()
$357
This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/146:25 am -
2 stops12h 29m
Thu 11/266:00 am -
2 stops11h 02m
Deal found 9/17![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.
Tue 9/292:44 pm -
1 stop6h 08m
Sat 10/35:53 pm -
1 stop4h 40m
Deal found 9/14![United Airlines logo]()
$369
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 9/2912:45 pm -
1 stop7h 38m
Sat 10/311:45 am -
1 stop8h 54m
Deal found 9/14![American Airlines logo]()
$369
Best flights from Idaho to South DakotaDiscover carefully curated flight deals from Idaho to South Dakota that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
Discover carefully curated flight deals from Idaho to South Dakota that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/235:30 am -
1 stop5h 15m
Sat 11/146:45 am -
1 stop7h 06m
Deal found 9/16![Delta logo]()
$339
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 10/134:08 pm -
1 stop5h 36m
Tue 10/209:42 am -
1 stop4h 54m
Deal found 9/14![United Airlines logo]()
$349
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 9/2912:45 pm -
1 stop7h 38m
Sat 10/311:45 am -
1 stop8h 54m
Deal found 9/14![American Airlines logo]()
$369
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 10/313:00 pm -
1 stop7h 03m
Sun 11/88:30 am -
1 stop5h 05m
Deal found 9/15![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.
Sat 2/64:17 pm -
1 stop4h 16m
Tue 2/97:05 am -
1 stop6h 30m
Deal found 9/13![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/235:30 am -
1 stop5h 15m
Sun 10/256:39 am -
1 stop5h 56m
Deal found 9/16![Delta 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.
Fri 10/3012:00 pm -
2 stops10h 44m
Sun 11/15:55 am -
1 stop4h 57m
Deal found 9/14![United Airlines logo]()
$391
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 11/157:00 am -
1 stop6h 58m
Thu 11/268:31 am -
1 stop5h 35m
Deal found 9/16![Delta logo]()
$374
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.
Wed 11/41:25 pm -
2 stops8h 05m
Wed 11/116:45 am -
2 stops11h 16m
Deal found 9/15![Delta logo]()
$376
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 2/62:45 pm -
1 stop4h 23m
Tue 2/94:40 pm -
1 stop4h 55m
Deal found 9/13![United Airlines logo]()
$419
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 2/31:45 pm -
1 stop7h 23m
Sat 2/62:40 pm -
1 stop7h 29m
Deal found 9/14![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/243:00 pm -
1 stop7h 30m
Mon 10/264:38 pm -
1 stop7h 21m
Deal found 9/18![Delta logo]()
$384
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/173:00 pm -
1 stop7h 30m
Sat 10/246:39 am -
1 stop5h 56m
Deal found 9/16![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/174:08 pm -
1 stop5h 22m
Sat 10/247:05 am -
1 stop6h 29m
Deal found 9/17![United Airlines logo]()
$425
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.
Sat 10/172:44 pm -
1 stop4h 56m
Tue 10/209:42 am -
1 stop4h 56m
Deal found 9/14![United Airlines logo]()
$474
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/143:00 pm -
1 stop7h 22m
Wed 10/215:00 pm -
1 stop7h 59m
Deal found 9/16![Delta logo]()
$433
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/167:00 am -
1 stop6h 58m
Thu 11/268:31 am -
2 stops12h 18m
Deal found 9/17![Delta logo]()
$438
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/610:37 am -
1 stop6h 32m
Sat 11/78:30 am -
1 stop6h 58m
Deal found 9/17![United Airlines logo]()
$499
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.
Sat 10/171:40 pm -
1 stop5h 00m
Wed 10/2111:35 am -
2 stops12h 41m
Deal found 9/14![United Airlines logo]()
$560
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/27:30 pm -
2 stops13h 32m
Tue 10/62:37 pm -
2 stops10h 13m
Deal found 9/17![Delta logo]()
$564
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/12:25 pm -
1 stop4h 54m
Sun 11/85:00 am -
1 stop4h 47m
Deal found 9/17![United Airlines logo]()
$567
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 10/135:30 am -
1 stop8h 27m
Wed 10/146:39 am -
1 stop5h 56m
Deal found 9/14![Delta logo]()
$567
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 2/54:25 pm -
1 stop4h 08m
Tue 2/98:35 am -
1 stop4h 54m
Deal found 9/13![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 2/27:00 am -
1 stop4h 13m
Sat 2/62:40 pm -
1 stop6h 22m
Deal found 9/16![United Airlines logo]()
$569
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.
Thu 10/154:28 pm -
1 stop6h 02m
Thu 10/228:45 am -
1 stop6h 39m
Deal found 9/15![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/101:40 pm -
1 stop6h 12m
Wed 10/145:00 am -
2 stops18h 16m
Deal found 9/16![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/85:30 pm -
1 stop5h 14m
Mon 10/126:50 pm -
1 stop4h 43m
Deal found 9/17![United Airlines logo]()
$573
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/155:00 am -
1 stop4h 50m
Sat 10/176:00 am -
2 stops7h 58m
Deal found 9/16![United Airlines logo]()
$578
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 9/302:28 pm -
1 stop6h 24m
Sun 10/45:00 am -
1 stop4h 53m
Deal found 9/14![United Airlines logo]()
$586
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 1/237:00 am -
1 stop4h 13m
Tue 1/262:40 pm -
1 stop6h 31m
Deal found 9/13![United Airlines logo]()
$599
Last-minute flights from Idaho to South DakotaDiscover last-minute flight deals from Idaho to South Dakota. Data last updated September 18, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to South Dakota. Data last updated September 18, 2026 and is based on user searches.
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 9/292:44 pm -
1 stop6h 08m
Sat 10/35:53 pm -
1 stop4h 40m
Deal found 9/14![United Airlines logo]()
$369
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 9/2912:45 pm -
1 stop7h 38m
Sat 10/311:45 am -
1 stop8h 54m
Deal found 9/14![American Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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
Wed 10/147:05 am -
1 stop6h 31m
Deal found 9/16![United Airlines logo]()
$357
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 10/134:08 pm -
1 stop5h 36m
Tue 10/209:42 am -
1 stop4h 54m
Deal found 9/14![United Airlines logo]()
$349
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.
Wed 10/143:00 pm -
1 stop7h 22m
Wed 10/218:30 am -
1 stop5h 05m
Deal found 9/14![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/143:00 pm -
1 stop7h 22m
Sat 10/178:30 am -
1 stop5h 05m
Deal found 9/16![Delta logo]()
$372
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.
Fri 10/235:30 am -
1 stop8h 27m
Sat 11/146:45 am -
1 stop7h 06m
Deal found 9/15![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/235:30 am -
1 stop5h 15m
Sun 10/256:39 am -
1 stop5h 56m
Deal found 9/16![Delta logo]()
$354
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/232:45 pm -
1 stop7h 11m
Tue 11/106:00 am -
2 stops12h 39m
Deal found 9/16![American Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/231:25 pm -
2 stops7h 57m
Tue 11/105:00 pm -
2 stops8h 55m
Deal found 9/16![Delta logo]()
$359
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 10/292:49 pm -
1 stop19h 27m
Sun 11/112:28 pm -
1 stop25h 12m
Deal found 9/14![Multiple Airlines logo]()
$341
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 10/311:06 pm -
2 stops8h 57m
Sun 11/88:30 am -
1 stop5h 05m
Deal found 9/15![Delta logo]()
$354
One-way flights from Idaho to South DakotaSearch for one-way flight options from Idaho to South Dakota. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
Search for one-way flight options from Idaho to South Dakota. Find affordable one-way fares based on user searches. Data last updated September 18, 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 10/152:50 pm -
1 stop19h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$214
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/221:38 pm -
1 stop6h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/14:24 pm -
1 stop16h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Allegiant Air logo]()
$292
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 10/155:58 pm -
2 stops16h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Allegiant Air logo]()
$318
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.
Mon 10/191:59 pm -
1 stop7h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/227:28 pm -
2 stops24h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/16:00 am -
2 stops12h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$460
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.
Wed 10/211:05 pm -
2 stops9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$504
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.
Thu 9/242:48 pm -
1 stop4h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![United Airlines logo]()
$539
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 9/245:00 am -
1 stop6h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$553
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” 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 10/14:24 pm -
3 stops41h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$558
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.
Wed 10/217:00 am -
3 stops27h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![United Airlines logo]()
$594
Find flight deals from Idaho to South Dakota
Keep the following information in mind while searching for Idaho to South Dakota flight deals. Data was last updated September 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $339 (Delta) |
One-way from | $214 (Kiwi.com) |
Popular in | June |
Cheapest in | March |
Average price | $388 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho 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 18, 2026.
Use the filters below to find and compare flights from Idaho to South Dakota that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Thu 10/15
2:50 pm-11:00 am
1 stop19h 10m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$214
SpokaneRapid City
GEG Spokane - RAP Rapid City
GEGRAP
Spokane
Thu 10/22
1:38 pm-8:52 pm
1 stop6h 14m
Rapid City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$284
SpokaneRapid City
GEG Spokane - RAP Rapid City
GEGRAP
Spokane
Thu 10/22
12:49 pm-9:56 pm
1 stop8h 07m
Rapid City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$284
SpokaneSioux Falls
GEG Spokane - FSD Sioux Falls Joe Foss Field
GEGFSD
Spokane
Thu 10/1
4:24 pm-11:00 am
1 stop16h 36m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$292
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Thu 10/15
5:58 pm-11:38 am
2 stops16h 40m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$318
SpokaneSioux Falls
GEG Spokane - FSD Sioux Falls Joe Foss Field
GEGFSD
Spokane
Mon 10/19
1:59 pm-11:22 pm
1 stop7h 23m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$319
BoiseRapid City
BOI Boise Air Term. Gowen Fld - RAP Rapid City
BOIRAP
Boise Air Term. Gowen Fld
Fri 10/23
5:30 am-10:45 am
1 stop5h 15m
Rapid City
Sat 11/14
6:45 am-1:51 pm
1 stop7h 06m
$339
SpokaneRapid City
GEG Spokane - RAP Rapid City
GEGRAP
Spokane
Thu 10/22
7:28 pm-9:16 pm
2 stops24h 48m
Rapid City
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$343
SpokaneSioux Falls
GEG Spokane - FSD Sioux Falls Joe Foss Field
GEGFSD
Spokane
Tue 10/13
4:08 pm-11:44 pm
1 stop5h 36m
Sioux Falls Joe Foss Field
Tue 10/20
9:42 am-12:36 pm
1 stop4h 54m
$349
BoiseSioux Falls
BOI Boise Air Term. Gowen Fld - FSD Sioux Falls Joe Foss Field
BOIFSD
Boise Air Term. Gowen Fld
Sat 10/31
3:00 pm-11:03 pm
1 stop7h 03m
Sioux Falls Joe Foss Field
Sun 11/8
8:30 am-12:35 pm
1 stop5h 05m
$349
Showing 1-10 of 45 resultsSorted by cheapest first
Best time to book a flight from Idaho to South Dakota
Have a flexible travel schedule? Discover the best time to fly to South Dakota from Idaho with our price prediction graph.
BOI-RAP
BOI-FSD
GEG-FSD
GEG-RAP
JAC-RAP
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 Idaho to South Dakota
USID-USSD
BOI-RAP
BOI-FSD
GEG-FSD
GEG-RAP
What is the cheapest month to book a flight from Idaho to South Dakota?
Currently, November is the cheapest month in which you can book a flight from Idaho to South Dakota (average of $329). Flying from Idaho to South Dakota in June is currently the most expensive (average of $668). 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 Idaho to South Dakota?
Airfare is below average for this route at the moment.
Idaho to South Dakota flights typically cost between $368 and $394 in October.The cheapest round-trip price found within the last 5 days was $341 on Multiple Airlines (Oct 29-Nov 1).
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 18, 2026.
See what other customers who have flown with Delta and United Airlines from Idaho to South Dakota have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Related info for your journey
Find useful and relevant information for your journey from Idaho 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 Idaho 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 Idaho to South Dakota by cabin class
Find flights from Idaho to South Dakota, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and South Dakota flights
Browse other Idaho and South Dakota flight options. Last updated on September 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from South Dakota
Find the right flight back to Idaho after your stay in South Dakota
Idaho to South Dakota flights
Consider these flights traveling from Idaho to South Dakota.
Top 2 airlines flying from Idaho to South Dakota
Discover the top 2 airlines that operate flights from Idaho 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 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$284 | Average$531 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$348 | Average$497 | FlexibilityNo cancel fee | On-timeN/A |