RAP - IDA

$289 Find Cheap Flights from Rapid City to Idaho Falls

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Rapid City to Idaho Falls departing on 3/25. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Rapid City to Idaho Falls, 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 Rapid City to Idaho Falls, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$289
United Airlines
Wed 3/25Sat 3/28
RAP - IDA • 1 stop
Cheapest one-way
Multiple Airlines
Mon 11/3
RAP - IDA • multi-stop
Top airlines
United Airlines
Cheapest • from $289 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Idaho Falls!
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Flight Deals

Cheap Flights from Rapid City to Idaho Falls (RAP-IDA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Rapid City to Idaho Falls 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 Rapid City to Idaho Falls

Wed, Mar 25 - Sat, Mar 28
United Airlines Logo
8:35 am - 1:34 pmRAP-IDA
4h 59m1 stop
United Airlines Logo
2:35 pm - 6:50 pmIDA-RAP
4h 15m1 stop
$289United Airlines
Find Deal
Mon, Nov 17 - Fri, Nov 21
Allegiant Air Logo
11:14 am - 6:06 pmRAP-IDA
6h 52m1 stop
Allegiant Air Logo
2:45 pm - 10:14 amIDA-RAP
19h 29m1 stop
$416Allegiant Air
Find Deal
Sun, Nov 30 - Sun, Dec 7
Multiple Airlines Logo
1:36 pm - 7:08 pmRAP-IDA
29h 32m2 stops
Multiple Airlines Logo
5:51 pm - 6:45 pmIDA-RAP
24h 54m1 stop
$464Multiple Airlines
Find Deal
Sun, Nov 30 - Sun, Dec 7
Allegiant Air Logo
1:36 pm - 2:32 pmRAP-IDA
24h 56m1 stop
Allegiant Air Logo
5:51 pm - 6:45 pmIDA-RAP
24h 54m1 stop
$649Allegiant Air
Find Deal
Wed, Mar 25 - Sat, Mar 28
American Airlines Logo
5:51 am - 9:57 pmRAP-IDA
16h 06m2 stops
American Airlines Logo
8:23 am - 8:15 pmIDA-RAP
11h 52m2 stops
$931American Airlines
Find Deal
Wed, Mar 25 - Sat, Mar 28
American Airlines Logo
5:51 am - 12:22 pmRAP-IDA
6h 31m1 stop
American Airlines Logo
8:23 am - 8:15 pmIDA-RAP
11h 52m2 stops
$981American Airlines
Find Deal
Mon, Nov 17 - Fri, Nov 21
Delta Logo
2:51 pm - 10:19 pmRAP-IDA
7h 28m2 stops
Delta Logo
1:15 pm - 10:39 pmIDA-RAP
9h 24m2 stops
$1,278Delta
Find Deal
Sun, Nov 30 - Sun, Dec 7
Delta Logo
6:05 am - 6:17 pmRAP-IDA
12h 12m2 stops
Delta Logo
6:00 am - 3:45 pmIDA-RAP
9h 45m2 stops
$2,363Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Rapid City to Idaho Falls flights

Get data-powered insights and trends into flights from Rapid City to Idaho Falls 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 Rapid City to Idaho Falls?

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

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

Good to know

Cheapest flight$289
Flight from Rapid City to Idaho Falls

When to book flights from Rapid City to Idaho Falls

Are your dates flexible? Find out the best times to travel from Rapid City to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Rapid City to Idaho Falls

  • What is the cheapest flight from Rapid City to Idaho Falls?

    In the last 3 days, the lowest price for a flight from Rapid City to Idaho Falls was $289 for a round-trip ticket.

  • Do I need a passport to fly between Rapid City and Idaho Falls?

    A passport is not required to fly from Rapid City to Idaho Falls.

  • Which airports will I be using when flying from Rapid City to Idaho Falls?

    On your way to Idaho Falls, you’ll fly out from Rapid City. You’ll be landing at Idaho Falls Fanning Field.

  • Which aircraft models fly most regularly from Rapid City to Idaho Falls?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Rapid City to Idaho Falls?

    Star Alliance is the only airline alliance operating flights between Rapid City and Idaho Falls.

  • How does KAYAK find such low prices on flights from Rapid City to Idaho Falls?

    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 Rapid City to Idaho Falls.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Rapid City 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 Rapid City to Idaho Falls?

    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 to Idaho Falls with an airline and back to Rapid City with another airline. Booking your flights between Rapid City and IDA can sometimes prove cheaper using this method.

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

    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 to Idaho Falls from Rapid City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Rapid City to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from Rapid City to Idaho Falls. 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 Rapid City to Idaho Falls? 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 8997 reviews
6.6Food
7.7Boarding
7.3Comfort
7.1Entertainment
8.1Crew
Airline reviews

7 hours delayed due to operational issues on United’s end. Basically laziness.

2.0 MediocreGray, Nov 2025IAD - SFO
Read more United Airlines reviews

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Everything you need to know for your flight from Rapid City to Idaho Falls

Information on your arrival and departure airports

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