$294 Find Cheap Flights from Idaho Falls to South Dakota

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to South Dakota departing on 7/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to South Dakota

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to South Dakota, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to South Dakota, as well as popular online travel agencies
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Best South Dakota Flight Deals from Idaho Falls

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Rapid City
Rapid City1 stop$294
Rapid City
Rapid City1 stop$294

Cheap Flights from Idaho Falls to South Dakota

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to South Dakota that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Idaho Falls to South Dakota

Sat, Jul 26 - Wed, Jul 30
United Airlines Logo
6:03 pm - 10:01 pmIDA-RAP
3h 58m1 stop
United Airlines Logo
5:30 am - 9:44 amRAP-IDA
4h 14m1 stop
$294United Airlines
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Sat, Jul 26 - Wed, Jul 30
Delta Logo
2:57 pm - 10:31 pmIDA-RAP
7h 34m2 stops
Delta Logo
6:50 am - 6:11 pmRAP-IDA
11h 21m2 stops
$1,504Delta
Find Deal
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KAYAK's insights & trends for Idaho Falls to South Dakota flights

Get data-powered insights and trends into flights from Idaho Falls to South Dakota to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Idaho Falls to South Dakota?

The average price of all round-trip flights from Idaho Falls to South Dakota clicked on KAYAK for each day over the last 12 months.

When flying from Idaho Falls to South Dakota, you should consider leaving on a Friday and avoid Thursdays if you are looking for the best rates. For your return to Idaho Falls, you’ll find the best rates on Fridays and the most expensive ones on Wednesdays.

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Good to know

Low seasonFebruary
High seasonFebruary
Cheapest flight$294
Best time to beat the crowds with an average 39% drop in price.
Most popular time to fly and prices are also 39% lower on average.
Flight from Idaho Falls to Rapid City

FAQs - booking South Dakota flights

  • How does KAYAK find such low prices on flights from Idaho Falls to South Dakota?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho Falls to South Dakota.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho Falls to South Dakota?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho Falls to South Dakota is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho Falls to South Dakota?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Idaho Falls to South Dakota with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho Falls to South Dakota?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Idaho Falls to South Dakota up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to South Dakota?

    The cheapest time of day to fly to South Dakota is generally in the evening, when round-trip flights cost $343 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to South Dakota is generally in the evening, which is peak travel time and where the average cost of a ticket is $343.

Reviews of the top airline flying from Idaho Falls to South Dakota

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to South Dakota. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Idaho Falls to South Dakota? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8849 reviews
6.6Food
7.3Comfort
8.1Crew
7.7Boarding
7.0Entertainment
Airline reviews

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

6.0 GoodPatricia, Jul 2025SNA - EWR
Read more United Airlines reviews

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Overall it was good. I missed my connection but I was put on another flight.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Boarded plane and then delayed 1.5 hours while on the plane

Survey sent before we actually left. Delay after delay. Now a crew problem.

Everything you need to know for your flight from Idaho Falls to South Dakota

Information on your arrival and departure airports

Idaho Falls (IDA)

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