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South Dakota

$374+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — FSD
Mar 4 — Mar 111
Wed 3/4
Wed 3/11
1 adult, Economy
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Cheap flight deals from Idaho Falls to South Dakota

Cheapest flights from Idaho Falls to South Dakota
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 February 2, 2026.

This United Airlines deal was found by Cheapflights users on 1/30. 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 10/315:00 am
IDA
-
RAP
1 stop4h 18m
United Airlines
Wed 11/48:35 am
RAP
-
IDA
1 stop5h 00m
United Airlines
Deal found 1/30$374
This United Airlines deal was found by Cheapflights users on 1/31. 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 2/162:40 pm
IDA
-
RAP
1 stop7h 36m
United Airlines
Fri 2/205:40 pm
RAP
-
IDA
1 stop19h 50m
United Airlines
Deal found 1/31$767
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Sun 2/156:35 am
IDA
-
RAP
1 stop6h 38m
United Airlines
Thu 2/195:40 pm
RAP
-
IDA
1 stop19h 50m
United Airlines
Deal found 1/30$821

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 February 2, 2026.

Round-trip from

$767
(United Airlines)
From Idaho Falls Fanning Field to South Dakota
Search Deals

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 2,558,603 searches. Data last updated February 2, 2026.
Use the filters below to find and compare flights from Idaho Falls to South Dakota that are best for you.

Fly from

Idaho Falls

Fly to

South Dakota

Route

Depart

Return

Price

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Mon 2/16

2:40 pm-10:16 pm

1 stop7h 36m

Rapid City

Fri 2/20

5:40 pm-1:30 pm

1 stop19h 50m

$767

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sun 2/15

6:35 am-1:13 pm

1 stop6h 38m

Rapid City

Thu 2/19

5:40 pm-1:30 pm

1 stop19h 50m

$821

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

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.
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
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 February 2, 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.
United Airlines
7.4
Good
9,229 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,229 reviews
United Airlines
7.4
Good
9,229 reviews

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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.

  • What airport do you fly from for flights from Idaho Falls to South Dakota?

    Located just 3.8 mi from the city center, Idaho Falls Fanning Field (IDA) is the airport most travelers will use when flying to South Dakota from Idaho Falls.

  • How long is the flight from Idaho Falls to South Dakota?

    United Airlines can get you from Idaho Falls to South Dakota in just under 7h 36m. Your travel time can differ by up to . Airlines will cover a distance of 450 mi.

  • Can I find deals for flights from Idaho Falls to South Dakota that include hotel bookings?

    Yes. In addition to deals on Idaho Falls to South Dakota flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho Falls to South Dakota?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to South Dakota.

  • Can I find deals for business class flights from Idaho Falls to South Dakota?

    Yes. Cheapflights offers flight deals from Idaho Falls to South Dakota by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Idaho Falls to South Dakota

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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 2,558,603 searches. Data last updated February 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$298Average$622FlexibilityNo cancel feeOn-time69%

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