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South Dakota

$399+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — FSD
Sep 1 — Sep 81
Tue 9/1
Tue 9/8
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 August 2, 2026.

This United Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 8/144:04 pm
IDA
-
RAP
1 stop6h 24m
United Airlines
Tue 8/188:55 am
RAP
-
IDA
1 stop6h 28m
United Airlines
Deal found 7/30$399
This United Airlines deal was found by Cheapflights users on 7/30. 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 10/252:35 pm
IDA
-
RAP
1 stop6h 08m
United Airlines
Sun 11/15:00 am
RAP
-
IDA
1 stop4h 53m
United Airlines
Deal found 7/30$434
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 11/34:30 pm
IDA
-
RAP
1 stop5h 59m
United Airlines
Sat 11/77:00 am
RAP
-
IDA
1 stop6h 28m
United Airlines
Deal found 7/30$474

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 August 2, 2026.

Round-trip from

$399
(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 August 2, 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

Price

Cheapest round-trip

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 8/14

4:04 pm-10:28 pm

1 stop6h 24m

Rapid City

Tue 8/18

8:55 am-3:23 pm

1 stop6h 28m

$399

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sun 10/25

2:35 pm-8:43 pm

1 stop6h 08m

Rapid City

Sun 11/1

5:00 am-9:53 am

1 stop4h 53m

$434
Quickest round-trip

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Tue 11/3

4:30 pm-8:43 pm

1 stop4h 13m

Rapid City

Sat 11/7

5:00 am-9:53 am

1 stop4h 53m

$434

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Sorted 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.
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 August 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
10,061 reviews

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,061 reviews
United Airlines
7.4
Good
10,061 reviews

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

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 6h 24m. 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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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 August 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$364Average$693FlexibilityNo cancel feeOn-time69%

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