$284+ Cheap flights from Idaho Falls (IDA) to South Dakota
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — FSD
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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Find cheap flights from Idaho Falls to South Dakota with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho Falls to South Dakota
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Cheapest flights from Idaho Falls to South DakotaExplore the most affordable flight options available from Idaho Falls to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
Explore the most affordable flight options available from Idaho Falls to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 11/185:30 pm -
1 stop5h 14m
Sun 11/225:55 am -
1 stop4h 58m
Deal found 11/2![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 11/144:30 pm -
1 stop4h 13m
Wed 11/185:00 am -
1 stop4h 53m
Deal found 10/30![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 11/185:30 pm -
1 stop5h 00m
Sun 11/225:00 am -
1 stop4h 53m
Deal found 11/2![United Airlines logo]()
$402
This United Airlines deal was found by Cheapflights users on 11/3. 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 11/135:30 pm -
1 stop5h 00m
Sun 11/155:00 am -
1 stop4h 53m
Deal found 11/3![United Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:36 am -
2 stops13h 18m
Sun 11/222:21 pm -
1 stop9h 10m
Deal found 11/2![American Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/195:30 pm -
1 stop5h 14m
Mon 11/239:32 am -
1 stop4h 56m
Deal found 11/4![United Airlines logo]()
$460
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/195:30 pm -
1 stop5h 00m
Mon 11/235:00 am -
1 stop4h 53m
Deal found 11/4![United Airlines logo]()
$479
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Thu 11/191:43 pm -
1 stop6h 10m
Mon 11/231:13 pm -
2 stops10h 18m
Deal found 11/4![American Airlines logo]()
$602
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 11/305:30 pm -
1 stop5h 00m
Mon 12/75:00 am -
1 stop4h 51m
Deal found 10/30![United Airlines logo]()
$628
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 11/138:52 am -
1 stop11h 03m
Sun 11/1512:06 pm -
2 stops23h 47m
Deal found 11/3![Multiple Airlines logo]()
$792
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 11/55:30 pm -
1 stop5h 00m
Sun 11/85:00 am -
1 stop4h 53m
Deal found 10/30![United Airlines logo]()
$900
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
2 stops9h 54m
Sun 11/222:23 pm -
2 stops7h 36m
Deal found 11/2![Delta logo]()
$1,669
Best flights from Idaho Falls to South DakotaDiscover carefully curated flight deals from Idaho Falls to South Dakota that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Idaho Falls to South Dakota that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 11/185:30 pm -
1 stop5h 14m
Sun 11/225:55 am -
1 stop4h 58m
Deal found 11/2![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Thu 11/191:43 pm -
1 stop6h 10m
Mon 11/231:13 pm -
2 stops10h 18m
Deal found 11/4![American Airlines logo]()
$602
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 11/144:30 pm -
1 stop4h 13m
Wed 11/185:00 am -
1 stop4h 53m
Deal found 10/30![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 11/3. 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 2/64:08 pm -
1 stop4h 22m
Tue 2/97:00 am -
1 stop6h 28m
Deal found 11/3![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/195:30 pm -
1 stop5h 14m
Mon 11/239:32 am -
1 stop4h 56m
Deal found 11/4![United Airlines logo]()
$460
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:36 am -
2 stops13h 18m
Sun 11/227:07 am -
2 stops16h 24m
Deal found 11/2![American Airlines logo]()
$733
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/195:30 pm -
2 stops17h 01m
Mon 11/235:00 am -
1 stop4h 53m
Deal found 11/4![United Airlines logo]()
$782
Last-minute flights from Idaho Falls to South DakotaDiscover last-minute flight deals from Idaho Falls to South Dakota. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to South Dakota. Data last updated November 4, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 11/55:30 pm -
1 stop5h 00m
Sun 11/85:00 am -
1 stop4h 53m
Deal found 10/30![United Airlines logo]()
$900
This United Airlines deal was found by Cheapflights users on 11/3. 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 11/135:30 pm -
1 stop5h 00m
Sun 11/155:00 am -
1 stop4h 53m
Deal found 11/3![United Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 11/138:52 am -
1 stop11h 03m
Sun 11/1512:06 pm -
2 stops23h 47m
Deal found 11/3![Multiple Airlines logo]()
$792
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 11/144:30 pm -
1 stop4h 13m
Wed 11/185:00 am -
1 stop4h 53m
Deal found 10/30![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 11/185:30 pm -
1 stop5h 14m
Sun 11/225:55 am -
1 stop4h 58m
Deal found 11/2![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Wed 11/185:30 pm -
1 stop5h 00m
Sun 11/225:00 am -
1 stop4h 53m
Deal found 11/2![United Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:36 am -
2 stops13h 18m
Sun 11/222:21 pm -
1 stop9h 10m
Deal found 11/2![American Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
2 stops9h 54m
Sun 11/222:23 pm -
2 stops7h 36m
Deal found 11/2![Delta logo]()
$1,669
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/195:30 pm -
1 stop5h 14m
Mon 11/239:32 am -
1 stop4h 56m
Deal found 11/4![United Airlines logo]()
$460
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/195:30 pm -
1 stop5h 00m
Mon 11/235:00 am -
1 stop4h 53m
Deal found 11/4![United Airlines logo]()
$479
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Thu 11/191:43 pm -
1 stop6h 10m
Mon 11/231:13 pm -
2 stops10h 18m
Deal found 11/4![American Airlines logo]()
$602
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” 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 11/305:30 pm -
1 stop5h 00m
Mon 12/75:00 am -
1 stop4h 51m
Deal found 10/30![United Airlines logo]()
$628
One-way flights from Idaho Falls to South DakotaSearch for one-way flight options from Idaho Falls to South Dakota. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
Search for one-way flight options from Idaho Falls to South Dakota. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This United Airlines deal was found by Cheapflights users on 11/4. 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 12/54:10 pm -
1 stop6h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![United Airlines logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:43 pm -
1 stop5h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Allegiant Air logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:47 pm -
3 stops45h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$441
This Delta deal was found by Cheapflights users on 11/4. 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.
Mon 11/96:00 am -
2 stops7h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Delta logo]()
$906
Find flight deals from Idaho Falls to South Dakota
Keep the following information in mind while searching for Idaho Falls to South Dakota flight deals. Data was last updated November 4, 2026.
Round-trip from | $369 (United Airlines) |
|---|---|
One-way from | $284 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho Falls to South Dakota that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated November 4, 2026.
Use the filters below to find and compare flights from Idaho Falls to South Dakota that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Idaho FallsRapid City
IDA Idaho Falls Fanning Field - RAP Rapid City
IDARAP
Idaho Falls Fanning Field
Mon 11/9
12:43 pm-6:18 pm
1 stop5h 35m
Rapid City
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$294
Idaho FallsSioux Falls
IDA Idaho Falls Fanning Field - FSD Sioux Falls Joe Foss Field
IDAFSD
Idaho Falls Fanning Field
Wed 11/18
5:30 pm-11:44 pm
1 stop5h 14m
Sioux Falls Joe Foss Field
Sun 11/22
5:55 am-9:53 am
1 stop4h 58m
$369
Idaho FallsRapid City
IDA Idaho Falls Fanning Field - RAP Rapid City
IDARAP
Idaho Falls Fanning Field
Sat 11/14
4:30 pm-8:43 pm
1 stop4h 13m
Rapid City
Wed 11/18
5:00 am-9:53 am
1 stop4h 53m
$389
Idaho FallsRapid City
IDA Idaho Falls Fanning Field - RAP Rapid City
IDARAP
Idaho Falls Fanning Field
Sat 2/6
4:08 pm-8:30 pm
1 stop4h 22m
Rapid City
Tue 2/9
7:00 am-1:28 pm
1 stop6h 28m
$429
Idaho FallsRapid City
IDA Idaho Falls Fanning Field - RAP Rapid City
IDARAP
Idaho Falls Fanning Field
Mon 11/9
7:47 pm-5:07 pm
3 stops45h 20m
Rapid City
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$441
Idaho FallsRapid City
IDA Idaho Falls Fanning Field - RAP Rapid City
IDARAP
Idaho Falls Fanning Field
Sat 12/5
2:40 pm-9:42 pm
2 stops31h 02m
Rapid City
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$451
Idaho FallsSioux Falls
IDA Idaho Falls Fanning Field - FSD Sioux Falls Joe Foss Field
IDAFSD
Idaho Falls Fanning Field
Thu 11/19
5:30 pm-11:44 pm
1 stop5h 14m
Sioux Falls Joe Foss Field
Mon 11/23
9:32 am-1:28 pm
1 stop4h 56m
$460
Idaho FallsSioux Falls
IDA Idaho Falls Fanning Field - FSD Sioux Falls Joe Foss Field
IDAFSD
Idaho Falls Fanning Field
Thu 11/19
1:43 pm-8:53 pm
1 stop6h 10m
Sioux Falls Joe Foss Field
Mon 11/23
1:13 pm-10:31 pm
2 stops10h 18m
$602
Idaho FallsSioux Falls
IDA Idaho Falls Fanning Field - FSD Sioux Falls Joe Foss Field
IDAFSD
Idaho Falls Fanning Field
Wed 11/18
6:36 am-8:54 pm
2 stops13h 18m
Sioux Falls Joe Foss Field
Sun 11/22
7:07 am-10:31 pm
2 stops16h 24m
$733
Idaho FallsRapid City
IDA Idaho Falls Fanning Field - RAP Rapid City
IDARAP
Idaho Falls Fanning Field
Thu 11/19
5:30 pm-10:31 am
2 stops17h 01m
Rapid City
Mon 11/23
5:00 am-9:53 am
1 stop4h 53m
$782
Showing 1-10 of 11 resultsSorted by cheapest first
Best time to book a flight from Idaho Falls to South Dakota
Have a flexible travel schedule? Discover the best time to fly to South Dakota from Idaho Falls with our price prediction graph.
IDA-RAP
IDA-FSD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Idaho Falls to South Dakota
IDA-USSD
IDA-RAP
IDA-FSD
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing South Dakota
Get insights into the airlines that provide service to South Dakota. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Dakota. Reviews last updated November 4, 2026.
See what other customers who have flown with United Airlines from Idaho Falls to South Dakota have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Overall
7.3
Boarding
7.7
Food
6.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Comfort
7.3
Overall
7.3
Boarding
7.7
Food
6.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Related info for your journey
Find useful and relevant information for your journey from Idaho Falls to South Dakota. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip to South Dakota by adding a car rental and/or hotel reservation to your travel itinerary.
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Idaho Falls and South Dakota flights
Browse other Idaho Falls and South Dakota flight options. Last updated on November 4, 2026.
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Idaho Falls to South Dakota flights
Consider these flights traveling from Idaho Falls to South Dakota.
Top airline flying from Idaho Falls to South Dakota
Discover the top airline that operate flights from Idaho Falls to South Dakota. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$364 | Average$479 | FlexibilityNo cancel fee | On-time69% |