$309+ Cheap flights from South Dakota to Idaho Falls (IDA)
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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — IDA
Jan 14 — Jan 211
1 adult, Economy
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1. Tell us where you want to go
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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 South Dakota to Idaho Falls
Best flights from South Dakota to Idaho FallsDiscover carefully curated flight deals from South Dakota to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.
Discover carefully curated flight deals from South Dakota to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/278:30 amRAP - IDA
1 stop7h 01mUnited Airlines
Sat 1/316:30 amIDA - RAP
1 stop6h 42mUnited Airlines
Deal found 12/14![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” 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 1/135:10 amRAP - IDA
1 stop4h 46mUnited Airlines
Sat 1/172:40 pmIDA - RAP
1 stop4h 34mUnited Airlines
Deal found 12/12![United Airlines logo]()
$309
Find flight deals from South Dakota to Idaho Falls
Keep the following information in mind while searching for South Dakota to Idaho Falls flight deals. Data was last updated December 15, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 1 star |
Round-trip from | $309 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from South Dakota to Idaho Falls 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 December 15, 2025.
Use the filters below to find and compare flights from South Dakota to Idaho Falls that are best for you.
Fly from
South Dakota
Fly to
Idaho Falls
Route
Depart
Return
Price
Rapid CityIdaho Falls
RAP - IDA
RAPIDA
Rapid City
Tue 1/27
8:30 am-3:31 pm
1 stop7h 01m
Idaho Falls Fanning Field
Sat 1/31
6:30 am-1:12 pm
1 stop6h 42m
$309
Rapid CityIdaho Falls
RAP - IDA
RAPIDA
Rapid City
Tue 1/13
5:10 am-9:56 am
1 stop4h 46m
Idaho Falls Fanning Field
Sat 1/17
2:40 pm-7:14 pm
1 stop4h 34m
$309
Best time to book a flight from South Dakota to Idaho Falls
Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from South Dakota with our price prediction graph.
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 Falls
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Related info for your journey
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Traveling to a place near Idaho Falls?
Book flights to Idaho Falls if you plan to visit one of these locationsRexburg
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Alternative routes for South Dakota to Idaho Falls
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Top airline flying from South Dakota to Idaho Falls
Discover the top airline that operate flights from South Dakota to Idaho Falls. 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 December 15, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$404 | FlexibilityNo cancel fee | On-time69% |