South Dakota

$239+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — FSD
Oct 15 — Oct 221
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Cheap 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 September 15, 2025.

Round-trip from

$239
(United Airlines)
From Idaho Falls Fanning Field to South Dakota

Find 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 September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 9/305:00 amIDA - RAP
1 stop4h 10mUnited Airlines
Sat 10/45:30 amRAP - IDA
1 stop4h 18mUnited Airlines
Deal found 9/15$239

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 September 15, 2025.
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

Tue 9/30

5:00 am-9:10 am

1 stop4h 10m

Rapid City

Sat 10/4

5:30 am-9:48 am

1 stop4h 18m

$239

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sat 3/7

2:35 pm-8:33 pm

1 stop5h 58m

Rapid City

Wed 3/11

5:30 am-9:28 am

1 stop3h 58m

$349

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Sat 3/7

8:19 am-8:11 pm

2 stops11h 52m

Rapid City

Wed 3/11

12:35 pm-9:57 pm

2 stops9h 22m

$832

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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 September 15, 2025.
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.

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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 and American Airlines can get you from Idaho Falls to South Dakota in just under 4h 10m. Your travel time can differ by up to 7h 42m. Airlines will cover a distance of 450 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.

  • What is the cheapest month to book a flight from Idaho Falls to South Dakota?

    Currently, September is the cheapest month in which you can book a flight from Idaho Falls to South Dakota (average of $334). Flying from Idaho Falls to South Dakota in December is currently the most expensive (average of $446). 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.

See more FAQs

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Alternative routes for Idaho Falls to South Dakota

See prices for flight routes from nearby airports that may be better suited for you.

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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$228Average$300FlexibilityNo cancel feeOn-time69%

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