$235+ Cheap flights from Sioux Falls (FSD) 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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — BOI
Nov 25 — Dec 21
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 Sioux Falls to IdahoExplore the most affordable flight options available from Sioux Falls to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from Sioux Falls to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 12/86:00 am -
1 stop8h 52m
Sat 12/122:11 pm -
1 stop8h 48m
Deal found 10/24![American Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 12/86:00 am -
2 stops8h 39m
Sat 12/125:35 pm -
1 stop5h 09m
Deal found 10/24![United Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/55:55 am -
1 stop4h 58m
Mon 11/92:35 pm -
1 stop4h 29m
Deal found 10/21![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/132:26 pm -
1 stop5h 58m
Mon 11/162:03 pm -
1 stop8h 46m
Deal found 10/24![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/131:20 pm -
2 stops8h 55m
Mon 11/165:44 pm -
1 stop5h 00m
Deal found 10/24![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 10/306:20 am -
1 stop8h 31m
Sat 11/142:03 pm -
1 stop8h 46m
Deal found 10/22![American Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/215:06 pm -
1 stop5h 28m
Wed 11/255:44 pm -
1 stop5h 00m
Deal found 10/24![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/611:22 am -
1 stop7h 41m
Mon 11/95:44 pm -
1 stop5h 00m
Deal found 10/24![United Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 12/56:00 am -
1 stop4h 59m
Wed 12/92:48 pm -
1 stop4h 45m
Deal found 10/21![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 10/301:00 pm -
2 stops11h 59m
Sat 11/143:00 pm -
1 stop7h 00m
Deal found 10/24![Delta logo]()
$469
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/89:32 am -
1 stop4h 56m
Thu 11/122:35 pm -
1 stop4h 29m
Deal found 10/24![United Airlines logo]()
$737
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 10/301:00 pm -
2 stops10h 20m
Sun 11/11:17 pm -
2 stops9h 05m
Deal found 10/22![Delta logo]()
$1,261
Best flights from Sioux Falls to IdahoDiscover carefully curated flight deals from Sioux Falls to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Sioux Falls to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 1/119:45 am -
2 stops12h 25m
Wed 1/202:30 pm -
1 stop5h 07m
Deal found 10/26![United Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 1/1310:59 am -
2 stops8h 20m
Wed 1/205:25 am -
2 stops10h 19m
Deal found 10/26![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 1/59:25 am -
1 stop5h 04m
Sat 1/910:40 am -
2 stops10h 41m
Deal found 10/24![United Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 10/301:00 pm -
2 stops11h 59m
Sat 11/143:00 pm -
1 stop7h 00m
Deal found 10/26![Delta logo]()
$459
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/215:06 pm -
1 stop5h 28m
Wed 11/255:44 pm -
1 stop5h 00m
Deal found 10/24![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/511:12 am -
2 stops11h 15m
Wed 12/95:35 pm -
1 stop5h 09m
Deal found 10/25![United Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 12/811:12 am -
2 stops11h 15m
Sat 12/1210:40 am -
2 stops10h 37m
Deal found 10/24![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/57:48 am -
2 stops8h 50m
Mon 11/95:30 pm -
1 stop5h 14m
Deal found 10/21![United Airlines logo]()
$478
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 4/211:00 pm -
2 stops10h 19m
Fri 4/231:10 pm -
2 stops8h 41m
Deal found 10/21![Delta logo]()
$647
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 4/219:14 am -
1 stop5h 19m
Fri 4/235:57 pm -
1 stop3h 59m
Deal found 10/21![United Airlines logo]()
$567
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 1/115:13 pm -
1 stop4h 57m
Wed 1/1310:40 am -
2 stops12h 04m
Deal found 10/26![United Airlines logo]()
$572
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 1/119:45 am -
2 stops12h 25m
Mon 1/184:08 pm -
2 stops29h 13m
Deal found 10/26![United Airlines logo]()
$678
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/89:32 am -
1 stop4h 56m
Thu 11/122:35 pm -
1 stop4h 29m
Deal found 10/24![United Airlines logo]()
$737
Last-minute flights from Sioux Falls to IdahoDiscover last-minute flight deals from Sioux Falls to Idaho. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Sioux Falls to Idaho. Data last updated October 26, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 10/306:20 am -
1 stop8h 31m
Sat 11/142:03 pm -
1 stop8h 46m
Deal found 10/22![American Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 10/301:00 pm -
2 stops11h 59m
Sat 11/143:00 pm -
1 stop7h 00m
Deal found 10/26![Delta logo]()
$459
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 10/301:00 pm -
2 stops10h 20m
Sun 11/11:17 pm -
2 stops9h 05m
Deal found 10/22![Delta logo]()
$1,261
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/55:55 am -
1 stop4h 58m
Mon 11/92:35 pm -
1 stop4h 29m
Deal found 10/21![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/611:22 am -
1 stop7h 41m
Mon 11/95:44 pm -
1 stop5h 00m
Deal found 10/24![United Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/89:32 am -
1 stop4h 56m
Thu 11/122:35 pm -
1 stop4h 29m
Deal found 10/24![United Airlines logo]()
$737
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/132:26 pm -
1 stop5h 58m
Mon 11/162:03 pm -
1 stop8h 46m
Deal found 10/24![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/131:20 pm -
2 stops8h 55m
Mon 11/165:44 pm -
1 stop5h 00m
Deal found 10/24![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/215:06 pm -
1 stop5h 28m
Wed 11/255:44 pm -
1 stop5h 00m
Deal found 10/24![United Airlines logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:32 pm -
2 stops18h 48m
Wed 11/251:31 pm -
1 stop22h 17m
Deal found 10/24![Allegiant Air logo]()
$501
One-way flights from Sioux Falls to IdahoSearch for one-way flight options from Sioux Falls to Idaho. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Sioux Falls to Idaho. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/227:17 pm -
1 stop16h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Allegiant Air logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/137:25 pm -
1 stop13h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Allegiant Air logo]()
$246
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 1/119:25 am -
1 stop7h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![United Airlines logo]()
$284
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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.
Mon 1/111:23 pm -
2 stops11h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![American Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/2211:56 am -
3 stops34h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/237:52 pm -
1 stop20h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Allegiant Air logo]()
$357
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/77:00 am -
1 stop6h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![American Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/711:00 am -
2 stops8h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Delta logo]()
$399
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/32:26 pm -
1 stop5h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![American Airlines logo]()
$407
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:14 am -
2 stops11h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![United Airlines logo]()
$412
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/610:31 pm -
2 stops44h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$437
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/137:25 pm -
3 stops41h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$445
Find flight deals from Sioux Falls to Idaho
Keep the following information in mind while searching for Sioux Falls to Idaho flight deals. Data was last updated October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $339 (United Airlines) |
One-way from | $235 (Kiwi.com) |
Popular in | May |
Cheapest in | June |
Average price | $458 |
Cheapflights Fare Finder
Customize your flight search to find flights from Sioux Falls 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 October 26, 2026.
Use the filters below to find and compare flights from Sioux Falls to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Sioux FallsIdaho Falls
FSD Sioux Falls Joe Foss Field - IDA Idaho Falls Fanning Field
FSDIDA
Sioux Falls Joe Foss Field
Sun 11/22
7:17 pm-11:01 am
1 stop16h 44m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$235
Sioux FallsIdaho Falls
FSD Sioux Falls Joe Foss Field - IDA Idaho Falls Fanning Field
FSDIDA
Sioux Falls Joe Foss Field
Mon 1/11
9:25 am-3:31 pm
1 stop7h 06m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$284
Sioux FallsIdaho Falls
FSD Sioux Falls Joe Foss Field - IDA Idaho Falls Fanning Field
FSDIDA
Sioux Falls Joe Foss Field
Wed 1/13
12:51 pm-6:19 pm
2 stops6h 28m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$289
Sioux FallsIdaho Falls
FSD Sioux Falls Joe Foss Field - IDA Idaho Falls Fanning Field
FSDIDA
Sioux Falls Joe Foss Field
Mon 1/11
9:45 am-9:10 pm
2 stops12h 25m
Idaho Falls Fanning Field
Wed 1/20
2:30 pm-8:37 pm
1 stop5h 07m
$344
Sioux FallsIdaho Falls
FSD Sioux Falls Joe Foss Field - IDA Idaho Falls Fanning Field
FSDIDA
Sioux Falls Joe Foss Field
Wed 1/13
10:59 am-6:19 pm
2 stops8h 20m
Idaho Falls Fanning Field
Wed 1/20
5:25 am-4:44 pm
2 stops10h 19m
$349
Sioux FallsBoise
FSD Sioux Falls Joe Foss Field - BOI Boise Air Term. Gowen Fld
FSDBOI
Sioux Falls Joe Foss Field
Tue 1/5
9:25 am-1:29 pm
1 stop5h 04m
Boise Air Term. Gowen Fld
Sat 1/9
10:40 am-10:21 pm
2 stops10h 41m
$354
Sioux FallsIdaho Falls
FSD Sioux Falls Joe Foss Field - IDA Idaho Falls Fanning Field
FSDIDA
Sioux Falls Joe Foss Field
Wed 12/23
7:52 pm-2:52 pm
1 stop20h 00m
Idaho Falls Fanning Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$357
Sioux FallsBoise
FSD Sioux Falls Joe Foss Field - BOI Boise Air Term. Gowen Fld
FSDBOI
Sioux Falls Joe Foss Field
Sat 11/7
11:00 am-6:46 pm
2 stops8h 46m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$399
Sioux FallsBoise
FSD Sioux Falls Joe Foss Field - BOI Boise Air Term. Gowen Fld
FSDBOI
Sioux Falls Joe Foss Field
Tue 11/3
2:26 pm-7:24 pm
1 stop5h 58m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$407
Sioux FallsBoise
FSD Sioux Falls Joe Foss Field - BOI Boise Air Term. Gowen Fld
FSDBOI
Sioux Falls Joe Foss Field
Fri 11/6
10:31 pm-6:02 pm
2 stops44h 31m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$437
Showing 1-10 of 26 resultsSorted by cheapest first
Best time to book a flight from Sioux Falls to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Sioux Falls with our price prediction graph.
FSD-IDA
FSD-BOI
FSD-TWF
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 Sioux Falls to Idaho
FSD-USID
FSD-IDA
FSD-BOI
FSD-TWF
What is the cheapest month to book a flight from Sioux Falls to Idaho?
Currently, June is the cheapest month in which you can book a flight from Sioux Falls to Idaho (average of $278). Flying from Sioux Falls to Idaho in May is currently the most expensive (average of $1,059). 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 Sioux Falls to Idaho?
Airfare is below average for this route at the moment.
Sioux Falls to Idaho flights typically cost between $503 and $656 in December.The cheapest round-trip price found within the last 5 days was $349 on American Airlines (Dec 8-Dec 12).
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 October 26, 2026.
Read reviews from past customers who have flown Delta and United Airlines from Sioux Falls to Idaho. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Entertainment
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Entertainment
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Overall
7.8
Boarding
8.1
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Related info for your journey
Find useful and relevant information for your journey from Sioux Falls 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 Sioux Falls to Idaho
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Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
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Sioux Falls and Idaho flights
Browse other Sioux Falls and Idaho flight options. Last updated on October 26, 2026.
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Sioux Falls to Idaho flights
Consider these flights traveling from Sioux Falls to Idaho.
Top 2 airlines flying from Sioux Falls to Idaho
Discover the top 2 airlines that operate flights from Sioux Falls 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 October 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$278 | Average$443 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$278 | Average$468 | FlexibilityNo cancel fee | On-time69% |