$262+ Cheap flights from South Dakota to Idaho
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 — BOI
Oct 20 — Oct 271
Round-trip
1 adult, Economy
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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 IdahoExplore the most affordable flight options available from South Dakota to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 20, 2026.
Explore the most affordable flight options available from South Dakota to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 20, 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.
Wed 11/114:36 pm -
1 stop7h 20m
Sun 11/153:00 pm -
1 stop7h 37m
Deal found 9/16![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.
Wed 10/218:30 am -
1 stop5h 45m
Sun 11/17:00 am -
1 stop7h 00m
Deal found 9/16![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.
Fri 10/305:00 pm -
1 stop7h 59m
Sat 11/145:15 am -
1 stop6h 02m
Deal found 9/16![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 10/218:30 am -
1 stop5h 45m
Mon 10/267:25 pm -
2 stops12h 35m
Deal found 9/16![Delta logo]()
$354
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 10/147:05 am -
1 stop6h 31m
Sun 10/185:00 am -
1 stop6h 26m
Deal found 9/15![United Airlines logo]()
$357
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 10/1511:17 am -
1 stop4h 07m
Sun 10/184:05 pm -
1 stop6h 25m
Deal found 9/15![United Airlines logo]()
$369
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.
Fri 11/68:30 am -
1 stop5h 45m
Sun 11/87:00 am -
1 stop7h 00m
Deal found 9/18![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.
Fri 10/238:30 am -
1 stop5h 45m
Mon 10/267:25 pm -
2 stops12h 35m
Deal found 9/15![Delta logo]()
$379
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 10/241:00 pm -
2 stops10h 22m
Sat 10/311:54 pm -
1 stop7h 09m
Deal found 9/16![Delta logo]()
$396
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 10/32:10 pm -
1 stop7h 29m
Wed 10/72:45 pm -
1 stop7h 11m
Deal found 9/17![American Airlines logo]()
$399
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:04 pm -
1 stop6h 29m
Wed 10/75:00 am -
1 stop4h 50m
Deal found 9/18![United Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/232:37 pm -
1 stop6h 31m
Sun 10/257:00 am -
1 stop5h 57m
Deal found 9/19![Delta logo]()
$399
Best flights from South Dakota to IdahoDiscover carefully curated flight deals from South Dakota to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 20, 2026.
Discover carefully curated flight deals from South Dakota to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 20, 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.
Sat 10/246:39 am -
1 stop5h 56m
Sun 10/255:30 am -
1 stop8h 27m
Deal found 9/15![Delta logo]()
$339
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 10/1511:17 am -
1 stop4h 07m
Sun 10/184:05 pm -
1 stop6h 25m
Deal found 9/15![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:56 pm -
1 stop9h 29m
Tue 10/66:30 am -
2 stops12h 43m
Deal found 9/19![American Airlines logo]()
$449
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 11/114:36 pm -
1 stop7h 20m
Sun 11/153:00 pm -
1 stop7h 37m
Deal found 9/15![Delta logo]()
$339
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.
Tue 1/128:35 am -
1 stop5h 00m
Sat 1/162:35 pm -
1 stop4h 33m
Deal found 9/15![United Airlines logo]()
$389
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 10/238:30 am -
1 stop5h 45m
Mon 10/267:25 pm -
2 stops12h 35m
Deal found 9/15![Delta logo]()
$379
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.
Sat 12/54:31 pm -
1 stop5h 21m
Wed 12/92:48 pm -
1 stop5h 03m
Deal found 9/15![United Airlines logo]()
$419
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 10/241:00 pm -
2 stops10h 22m
Sat 10/311:54 pm -
1 stop7h 09m
Deal found 9/16![Delta logo]()
$396
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 10/249:42 am -
1 stop4h 56m
Wed 10/285:44 pm -
1 stop5h 00m
Deal found 9/16![United Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/232:37 pm -
1 stop6h 31m
Sun 10/257:00 am -
1 stop5h 57m
Deal found 9/19![Delta logo]()
$399
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 10/3011:22 am -
2 stops13h 11m
Sat 11/142:51 pm -
1 stop4h 13m
Deal found 9/17![United Airlines logo]()
$434
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.
Mon 10/198:30 am -
1 stop5h 45m
Mon 10/267:25 pm -
2 stops12h 35m
Deal found 9/18![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/153:22 pm -
1 stop6h 27m
Sun 10/185:00 am -
1 stop6h 26m
Deal found 9/19![United Airlines logo]()
$435
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.
Tue 10/205:00 pm -
2 stops8h 50m
Tue 10/271:54 pm -
1 stop7h 28m
Deal found 9/16![Delta logo]()
$438
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/247:05 am -
1 stop6h 29m
Wed 10/281:49 pm -
1 stop5h 54m
Deal found 9/19![United Airlines logo]()
$439
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 11/79:32 am -
2 stops11h 09m
Wed 11/115:00 am -
1 stop5h 35m
Deal found 9/16![United Airlines logo]()
$444
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 10/238:30 am -
1 stop5h 45m
Sun 10/257:25 pm -
2 stops12h 35m
Deal found 9/15![Delta logo]()
$453
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 10/19:42 am -
1 stop4h 56m
Mon 10/55:00 am -
1 stop4h 50m
Deal found 9/16![United Airlines logo]()
$484
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.
Tue 11/102:23 pm -
2 stops10h 32m
Fri 11/131:50 pm -
2 stops7h 47m
Deal found 9/17![Delta logo]()
$577
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.
Wed 10/77:50 am -
2 stops10h 59m
Wed 10/141:40 pm -
1 stop5h 40m
Deal found 9/16![United Airlines logo]()
$525
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 10/67:50 am -
2 stops10h 59m
Tue 10/134:28 pm -
1 stop6h 16m
Deal found 9/16![United Airlines logo]()
$529
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 10/245:04 pm -
1 stop5h 11m
Wed 10/282:34 pm -
1 stop4h 30m
Deal found 9/16![United Airlines logo]()
$551
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 10/147:05 am -
2 stops16h 11m
Sun 10/185:00 am -
1 stop6h 26m
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 10/245:04 pm -
1 stop4h 42m
Wed 10/282:25 pm -
1 stop4h 39m
Deal found 9/16![United Airlines logo]()
$581
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/235:53 pm -
2 stops29h 18m
Sun 10/255:00 am -
1 stop5h 58m
Deal found 9/19![United Airlines logo]()
$592
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 10/15:00 am -
1 stop4h 53m
Mon 10/54:05 pm -
1 stop4h 47m
Deal found 9/16![United Airlines logo]()
$593
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 10/210:26 am -
1 stop7h 17m
Tue 10/65:00 am -
1 stop4h 28m
Deal found 9/17![United Airlines logo]()
$603
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 11/115:00 am -
2 stops11h 42m
Sun 11/156:30 am -
1 stop5h 28m
Deal found 9/15![United Airlines logo]()
$622
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.
Thu 10/152:37 pm -
2 stops7h 33m
Sun 10/181:05 pm -
2 stops9h 25m
Deal found 9/15![Delta logo]()
$1,749
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 12/2311:13 am -
1 stop4h 25m
Sun 12/272:37 pm -
1 stop22h 14m
Deal found 9/19![United Airlines logo]()
$1,088
Last-minute flights from South Dakota to IdahoDiscover last-minute flight deals from South Dakota to Idaho. Data last updated September 20, 2026 and is based on user searches.
Discover last-minute flight deals from South Dakota to Idaho. Data last updated September 20, 2026 and is based on user searches.
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 10/32:10 pm -
1 stop7h 29m
Wed 10/72:45 pm -
1 stop7h 11m
Deal found 9/17![American Airlines logo]()
$399
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:04 pm -
1 stop6h 29m
Wed 10/75:00 am -
1 stop4h 50m
Deal found 9/18![United Airlines logo]()
$399
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 10/147:05 am -
1 stop6h 31m
Sun 10/185:00 am -
1 stop6h 26m
Deal found 9/15![United Airlines logo]()
$357
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 10/1511:17 am -
1 stop4h 07m
Sun 10/184:05 pm -
1 stop6h 25m
Deal found 9/15![United Airlines logo]()
$369
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 10/218:30 am -
1 stop5h 45m
Sun 11/17:00 am -
1 stop7h 00m
Deal found 9/16![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 10/218:30 am -
1 stop5h 45m
Mon 10/267:25 pm -
2 stops12h 35m
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.
Fri 10/238:30 am -
1 stop5h 45m
Mon 10/267:25 pm -
2 stops12h 35m
Deal found 9/15![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/232:37 pm -
1 stop6h 31m
Sun 10/257:00 am -
1 stop5h 57m
Deal found 9/19![Delta logo]()
$399
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 10/246:39 am -
1 stop5h 56m
Sun 10/255:30 am -
1 stop8h 27m
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.
Sat 10/241:00 pm -
2 stops10h 22m
Sat 10/311:54 pm -
1 stop7h 09m
Deal found 9/16![Delta logo]()
$396
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 10/241:00 pm -
2 stops10h 22m
Wed 10/281:25 pm -
2 stops7h 57m
Deal found 9/16![Delta logo]()
$401
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 10/305:00 pm -
1 stop7h 59m
Sat 11/145:15 am -
1 stop6h 02m
Deal found 9/17![Delta logo]()
$349
One-way flights from South Dakota to IdahoSearch for one-way flight options from South Dakota to Idaho. Find affordable one-way fares based on user searches. Data last updated September 20, 2026.
Search for one-way flight options from South Dakota to Idaho. Find affordable one-way fares based on user searches. Data last updated September 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” 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 -
1 stop20h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$262
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 10/246:39 am -
1 stop5h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$284
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 10/72:37 pm -
1 stop6h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Delta logo]()
$284
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 am -
1 stop4h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![United Airlines logo]()
$292
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.
Tue 10/139:42 am -
1 stop4h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$319
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:50 pm -
1 stop22h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$321
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 10/77:05 am -
1 stop6h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![United Airlines logo]()
$360
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.
Mon 10/55:53 pm -
1 stop4h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$379
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 10/212:56 pm -
1 stop9h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![American Airlines logo]()
$394
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.
Fri 10/211:15 am -
2 stops11h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$399
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:26 am -
1 stop5h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![United Airlines logo]()
$413
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 12/2311:13 am -
1 stop4h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![United Airlines logo]()
$440
Find flight deals from South Dakota to Idaho
Keep the following information in mind while searching for South Dakota to Idaho flight deals. Data was last updated September 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $339 (Delta) |
One-way from | $262 (Kiwi.com) |
Popular in | May |
Cheapest in | June |
Average price | $558 |
Cheapflights Fare Finder
Customize your flight search to find flights from South Dakota to Idaho 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 20, 2026.
Use the filters below to find and compare flights from South Dakota to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Rapid CityBoise
RAP Rapid City - BOI Boise Air Term. Gowen Fld
RAPBOI
Rapid City
Sat 10/24
12:30 pm-5:43 pm
1 stop5h 13m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$284
Rapid CityBoise
RAP Rapid City - BOI Boise Air Term. Gowen Fld
RAPBOI
Rapid City
Sat 10/24
6:39 am-12:35 pm
1 stop5h 56m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$284
Rapid CitySpokane
RAP Rapid City - GEG Spokane
RAPGEG
Rapid City
Wed 10/7
2:37 pm-8:08 pm
1 stop6h 31m
Spokane
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$284
Sioux FallsJackson
FSD Sioux Falls Joe Foss Field - JAC Jackson Hole
FSDJAC
Sioux Falls Joe Foss Field
Sun 10/4
6:00 am-1:45 pm
2 stops8h 45m
Jackson Hole
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$297
Quickest round-trip
Sioux FallsSpokane
FSD Sioux Falls Joe Foss Field - GEG Spokane
FSDGEG
Sioux Falls Joe Foss Field
Tue 10/13
9:42 am-12:36 pm
1 stop4h 54m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$319
Rapid CityBoise
RAP Rapid City - BOI Boise Air Term. Gowen Fld
RAPBOI
Rapid City
Sun 10/4
3:50 pm-1:55 pm
1 stop22h 05m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$321
Rapid CityBoise
RAP Rapid City - BOI Boise Air Term. Gowen Fld
RAPBOI
Rapid City
Sat 10/24
6:39 am-12:35 pm
1 stop5h 56m
Boise Air Term. Gowen Fld
Sun 10/25
5:30 am-1:57 pm
1 stop8h 27m
$339
Rapid CityBoise
RAP Rapid City - BOI Boise Air Term. Gowen Fld
RAPBOI
Rapid City
Wed 11/11
4:36 pm-11:56 pm
1 stop7h 20m
Boise Air Term. Gowen Fld
Sun 11/15
3:00 pm-10:37 pm
1 stop7h 37m
$339
Rapid CitySpokane
RAP Rapid City - GEG Spokane
RAPGEG
Rapid City
Wed 10/7
7:05 am-12:36 pm
1 stop6h 31m
Spokane
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$360
Rapid CityIdaho Falls
RAP Rapid City - IDA Idaho Falls Fanning Field
RAPIDA
Rapid City
Thu 10/15
11:17 am-3:24 pm
1 stop4h 07m
Idaho Falls Fanning Field
Sun 10/18
4:05 pm-10:30 pm
1 stop6h 25m
$369
Showing 1-10 of 45 resultsSorted by cheapest first
Best time to book a flight from South Dakota to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from South Dakota with our price prediction graph.
RAP-BOI
FSD-GEG
FSD-BOI
RAP-GEG
RAP-IDA
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 South Dakota to Idaho
USSD-USID
RAP-BOI
FSD-GEG
FSD-BOI
RAP-GEG
What is the cheapest month to book a flight from South Dakota to Idaho?
Currently, June is the cheapest month in which you can book a flight from South Dakota to Idaho (average of $278). Flying from South Dakota to Idaho in December is currently the most expensive (average of $569). 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.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated September 20, 2026.
See what other customers who have flown with Delta and United Airlines from South Dakota to Idaho have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Comfort
7.8
Food
7.2
Overall
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Related info for your journey
Find useful and relevant information for your journey from South Dakota to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for South Dakota to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from South Dakota to Idaho by cabin class
Find flights from South Dakota to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
South Dakota and Idaho flights
Browse other South Dakota and Idaho flight options. Last updated on September 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Idaho
Find the right flight back to South Dakota after your stay in Idaho
South Dakota to Idaho flights
Consider these flights traveling from South Dakota to Idaho.
Top 2 airlines flying from South Dakota to Idaho
Discover the top 2 airlines that operate flights from South Dakota to Idaho. 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 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$433 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$278 | Average$443 | FlexibilityNo cancel fee | On-timeN/A |