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Idaho Falls

$116+ Cheap flights from South Dakota to Idaho Falls (IDA)

This is the cheapest one-way 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.
FSD — IDA
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheap 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 July 1, 2025.

Round-trip from

$550
(United Airlines)

One-way from

$116
(Mytrip)
From South Dakota to Idaho Falls Fanning Field
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One-way flight from South Dakota to Idaho Falls Fanning Field
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Find flight deals from South Dakota to Idaho Falls

Cheapest flights from South Dakota to Idaho Falls
Explore the most affordable flight options available from South Dakota to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

This United Airlines deal was found by Cheapflights users on 6/28. 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 8/15:30 amRAP - IDA
1 stop4h 14mUnited Airlines
Mon 8/44:13 pmIDA - RAP
1 stop5h 47mUnited Airlines
Deal found 6/28$550
This Delta deal was found by Cheapflights users on 6/28. 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.
Fri 8/12:25 pmRAP - IDA
2 stops8h 04mDelta
Mon 8/46:00 amIDA - RAP
2 stops7h 45mDelta
Deal found 6/28$1,611

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 July 1, 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

Fri 8/1

5:30 am-9:44 am

1 stop4h 14m

Idaho Falls Fanning Field

Mon 8/4

4:13 pm-10:00 pm

1 stop5h 47m

$550

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Fri 8/1

2:25 pm-10:29 pm

2 stops8h 04m

Idaho Falls Fanning Field

Mon 8/4

6:00 am-1:45 pm

2 stops7h 45m

$1,611

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Thu 8/14

10:00 pm-11:30 am

1 stop13h 30m

$116

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Thu 8/14

10:00 pm-6:41 pm

2 stops20h 41m

$148

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

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
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Idaho Falls. Reviews last updated July 1, 2025.
Read through reviews of airlines operating flights from South Dakota to Idaho Falls, such as Delta, United Airlines, and Allegiant Air. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,973 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,852 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
710 reviews
Delta
8.0
Very good
7,973 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from South Dakota to Idaho Falls. 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 into for flights to Idaho Falls from South Dakota?

    Idaho Falls Fanning Field (IDA), located 3.8 mi from the city center, is the airport you fly into when you book flights from South Dakota to Idaho Falls.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from South Dakota to Idaho Falls 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 South Dakota to Idaho Falls?

    Currently, October is the cheapest month in which you can book a flight from South Dakota to Idaho Falls (average of $380). Flying from South Dakota to Idaho Falls in December is currently the most expensive (average of $578). 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

Traveling to a place near South Dakota?

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Rexburg

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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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$182Average$434FlexibilityNo cancel feeOn-time69%

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