$216+ Cheap flights from South Dakota to Idaho
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — BOI
Sep 4 — Sep 111
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 August 5, 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 August 5, 2026.
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/297:00 am -
1 stop6h 38m
Mon 8/315:00 am -
1 stop4h 28m
Deal found 8/2![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/94:31 pm -
1 stop7h 23m
Tue 9/227:30 pm -
2 stops13h 31m
Deal found 7/31![Delta logo]()
$324
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/291:26 pm -
1 stop7h 58m
Sat 9/52:05 pm -
1 stop6h 46m
Deal found 8/4![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/4![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/266:00 am -
2 stops10h 31m
Wed 9/22:44 pm -
1 stop4h 23m
Deal found 8/3![United Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/17:00 am -
1 stop6h 29m
Mon 9/75:53 pm -
1 stop4h 40m
Deal found 8/4![United Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/315:00 am -
1 stop4h 35m
Mon 9/75:00 am -
1 stop4h 28m
Deal found 7/31![United Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/15:58 pm -
1 stop4h 42m
Mon 9/75:00 am -
1 stop4h 28m
Deal found 8/2![United Airlines logo]()
$341
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:08 pm -
1 stop9h 32m
Sun 11/81:46 pm -
1 stop8h 03m
Deal found 7/31![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/236:00 am -
1 stop8h 00m
Wed 9/301:52 pm -
1 stop9h 01m
Deal found 7/31![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 10/78:05 am -
1 stop6h 17m
Tue 10/132:02 pm -
1 stop8h 49m
Deal found 8/4![American Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/212:57 pm -
1 stop9h 45m
Tue 9/85:20 am -
1 stop6h 20m
Deal found 8/3![American Airlines logo]()
$354
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 August 5, 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 August 5, 2026.
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/297:00 am -
1 stop6h 38m
Mon 8/315:00 am -
1 stop4h 28m
Deal found 8/2![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/291:26 pm -
1 stop7h 58m
Sat 9/52:05 pm -
1 stop6h 46m
Deal found 8/1![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 10/211:45 am -
1 stop8h 54m
Tue 10/612:49 pm -
1 stop8h 13m
Deal found 8/3![American Airlines logo]()
$405
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/288:22 am -
1 stop6h 35m
Fri 9/42:05 pm -
1 stop6h 46m
Deal found 7/31![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/265:05 pm -
1 stop6h 35m
Wed 9/25:00 am -
1 stop4h 43m
Deal found 8/3![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 7/31![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/17:00 am -
1 stop6h 29m
Mon 9/75:53 pm -
1 stop4h 40m
Deal found 8/4![United Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 05m
Sun 10/253:00 pm -
1 stop7h 22m
Deal found 8/3![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/15:58 pm -
1 stop4h 42m
Mon 9/75:00 am -
1 stop4h 28m
Deal found 8/2![United Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/94:31 pm -
1 stop7h 23m
Tue 9/226:45 am -
1 stop8h 06m
Deal found 7/31![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/215:05 pm -
1 stop5h 32m
Tue 8/255:00 am -
1 stop6h 39m
Deal found 8/1![United Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/229:35 am -
1 stop5h 03m
Sat 8/2910:36 am -
1 stop4h 47m
Deal found 8/3![United Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/36:00 am -
1 stop4h 35m
Sun 9/62:44 pm -
1 stop4h 23m
Deal found 8/4![United Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/105:05 pm -
1 stop5h 40m
Sun 9/135:40 pm -
1 stop5h 04m
Deal found 7/31![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/236:00 am -
2 stops10h 31m
Wed 9/305:30 pm -
1 stop5h 14m
Deal found 7/31![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/171:05 pm -
2 stops12h 25m
Mon 9/217:30 pm -
2 stops12h 49m
Deal found 8/5![Delta logo]()
$494
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 1/65:30 am -
1 stop3h 58m
Sat 1/95:57 pm -
1 stop4h 11m
Deal found 7/31![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:48 am -
1 stop7h 09m
Mon 9/76:45 am -
1 stop8h 04m
Deal found 8/4![Delta logo]()
$528
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/155:05 pm -
1 stop5h 41m
Wed 8/193:54 pm -
1 stop5h 50m
Deal found 7/31![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 10/24:31 pm -
1 stop7h 23m
Tue 10/611:18 am -
2 stops10h 12m
Deal found 8/3![Delta logo]()
$533
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:58 pm -
1 stop4h 42m
Wed 9/95:00 am -
1 stop4h 27m
Deal found 8/4![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/255:58 pm -
1 stop4h 42m
Sat 8/292:44 pm -
1 stop5h 53m
Deal found 8/2![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/288:55 am -
1 stop4h 40m
Sun 9/65:00 am -
1 stop6h 24m
Deal found 8/4![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/98:40 am -
1 stop4h 55m
Mon 9/215:00 am -
1 stop6h 24m
Deal found 7/31![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/165:58 pm -
1 stop4h 42m
Sun 8/235:44 pm -
1 stop4h 44m
Deal found 8/1![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/2010:26 am -
1 stop7h 32m
Thu 9/35:00 am -
1 stop4h 28m
Deal found 8/4![United Airlines logo]()
$415
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 45m
Wed 10/285:00 am -
1 stop5h 35m
Deal found 8/3![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 1/69:14 am -
1 stop8h 05m
Sat 1/91:45 pm -
1 stop7h 11m
Deal found 7/31![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/258:55 am -
1 stop4h 40m
Sat 8/295:00 am -
1 stop5h 55m
Deal found 8/2![United Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/21:33 pm -
2 stops11h 03m
Tue 9/83:54 pm -
1 stop5h 50m
Deal found 8/3![United Airlines logo]()
$481
Last-minute flights from South Dakota to IdahoDiscover last-minute flight deals from South Dakota to Idaho. Data last updated August 5, 2026 and is based on user searches.
Discover last-minute flight deals from South Dakota to Idaho. Data last updated August 5, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/218:22 am -
1 stop6h 20m
Mon 8/245:30 am -
1 stop6h 08m
Deal found 8/3![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/216:00 am -
2 stops10h 31m
Mon 8/245:00 am -
1 stop4h 43m
Deal found 8/3![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/265:05 pm -
1 stop6h 35m
Wed 9/25:00 am -
1 stop4h 43m
Deal found 8/3![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/297:00 am -
1 stop6h 38m
Mon 8/315:00 am -
1 stop4h 28m
Deal found 8/2![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/291:26 pm -
1 stop7h 58m
Sat 9/52:05 pm -
1 stop6h 46m
Deal found 8/4![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/315:00 am -
1 stop4h 35m
Mon 9/75:00 am -
1 stop4h 28m
Deal found 7/31![United Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/17:00 am -
1 stop6h 29m
Mon 9/75:53 pm -
1 stop4h 40m
Deal found 8/4![United Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/15:58 pm -
1 stop4h 42m
Mon 9/75:00 am -
1 stop4h 28m
Deal found 8/2![United Airlines logo]()
$341
This American Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/212:57 pm -
1 stop9h 45m
Tue 9/85:20 am -
1 stop6h 20m
Deal found 8/3![American Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/36:00 am -
1 stop4h 35m
Sun 9/62:44 pm -
1 stop4h 23m
Deal found 8/4![United Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/94:31 pm -
1 stop7h 23m
Tue 9/227:30 pm -
2 stops13h 31m
Deal found 7/31![Delta logo]()
$324
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/236:00 am -
1 stop8h 00m
Wed 9/301:52 pm -
1 stop9h 01m
Deal found 7/31![American Airlines 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 August 5, 2026.
Search for one-way flight options from South Dakota to Idaho. Find affordable one-way fares based on user searches. Data last updated August 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:05 pm -
2 stops37h 24m
Deal found 8/3![Multiple Airlines logo]()
$216
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:30 pm -
1 stop7h 29m
Deal found 8/3![Delta logo]()
$274
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/227:00 am -
1 stop6h 31m
Deal found 8/1![United Airlines logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/139:47 pm -
1 stop15h 15m
Deal found 8/2![Allegiant Air logo]()
$303
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/261:26 pm -
1 stop7h 44m
Deal found 8/4![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/266:00 am -
2 stops11h 39m
Deal found 8/4![United Airlines logo]()
$316
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/183:27 pm -
1 stop6h 10m
Deal found 8/1![United Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/182:32 pm -
2 stops9h 27m
Deal found 8/1![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/154:28 pm -
1 stop5h 24m
Deal found 8/1![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 8/159:35 am -
1 stop5h 03m
Deal found 8/2![United Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/226:48 am -
2 stops10h 21m
Deal found 8/1![Delta logo]()
$429
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/99:30 am -
1 stop5h 05m
Deal found 8/1![United Airlines logo]()
$434
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 August 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $319 (United Airlines) |
One-way from | $216 (Kiwi.com) |
Popular in | May |
Cheapest in | June |
Average price | $368 |
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 2,558,603 searches. Data last updated August 5, 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 - BOI
RAPBOI
Rapid City
Sat 8/29
7:00 am-1:38 pm
1 stop6h 38m
Boise Air Term. Gowen Fld
Mon 8/31
5:00 am-9:28 am
1 stop4h 28m
$319
Sioux FallsSpokane
FSD - GEG
FSDGEG
Sioux Falls Joe Foss Field
Sat 8/29
1:26 pm-7:24 pm
1 stop7h 58m
Spokane
Sat 9/5
2:05 pm-10:51 pm
1 stop6h 46m
$329
Sioux FallsSpokane
FSD - GEG
FSDGEG
Sioux Falls Joe Foss Field
Fri 8/28
8:22 am-12:57 pm
1 stop6h 35m
Spokane
Fri 9/4
2:05 pm-10:51 pm
1 stop6h 46m
$329
Sioux FallsBoise
FSD - BOI
FSDBOI
Sioux Falls Joe Foss Field
Wed 8/26
5:05 pm-10:40 pm
1 stop6h 35m
Boise Air Term. Gowen Fld
Wed 9/2
5:00 am-10:43 am
1 stop4h 43m
$329
Sioux FallsBoise
FSD - BOI
FSDBOI
Sioux Falls Joe Foss Field
Fri 10/30
5:00 pm-11:59 pm
1 stop7h 59m
Boise Air Term. Gowen Fld
Sat 11/14
5:15 am-12:17 pm
1 stop6h 02m
$329
Sioux FallsBoise
FSD - BOI
FSDBOI
Sioux Falls Joe Foss Field
Fri 10/23
8:30 am-12:35 pm
1 stop5h 05m
Boise Air Term. Gowen Fld
Sun 10/25
3:00 pm-11:22 pm
1 stop7h 22m
$329
Rapid CitySpokane
RAP - GEG
RAPGEG
Rapid City
Wed 9/9
4:31 pm-10:54 pm
1 stop7h 23m
Spokane
Tue 9/22
6:45 am-3:51 pm
1 stop8h 06m
$329
Rapid CityIdaho Falls
RAP - IDA
RAPIDA
Rapid City
Tue 9/1
7:00 am-1:29 pm
1 stop6h 29m
Idaho Falls Fanning Field
Mon 9/7
5:53 pm-10:33 pm
1 stop4h 40m
$340
Rapid CityBoise
RAP - BOI
RAPBOI
Rapid City
Tue 9/1
5:58 pm-10:40 pm
1 stop4h 42m
Boise Air Term. Gowen Fld
Mon 9/7
5:00 am-9:28 am
1 stop4h 28m
$341
Sioux FallsBoise
FSD - BOI
FSDBOI
Sioux Falls Joe Foss Field
Fri 8/21
5:05 pm-9:37 pm
1 stop5h 32m
Boise Air Term. Gowen Fld
Tue 8/25
5:00 am-12:39 pm
1 stop6h 39m
$354
Showing 1-10 of 46 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
RAP-GEG
FSD-GEG
FSD-BOI
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
RAP-GEG
FSD-GEG
FSD-BOI
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 November is currently the most expensive (average of $733). 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 Idaho?
Airfare is below average for this route at the moment.
South Dakota to Idaho flights typically cost between $358 and $424 in October.The cheapest round-trip price found within the last 5 days was $329 on Delta (Oct 30-Nov 14).
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 August 5, 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.
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
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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 August 5, 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 2,558,603 searches. Data last updated August 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$432 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$278 | Average$443 | FlexibilityNo cancel fee | On-timeN/A |