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Cheap flights from Idaho Falls to Rapid City from $254

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to Rapid City departing on 9/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Idaho Falls to Rapid City (IDA-RAP)

Cheap round-trip flights

United Airlines Logo
5:00 am - 9:06 amIDA-RAP
4h 06m1 stop
United Airlines Logo
5:30 am - 9:47 amRAP-IDA
4h 17m1 stop
$254United Airlines
Find Deal
Wed, Sep 10 - Sun, Sep 14
Delta Logo
3:00 pm - 10:32 pmIDA-RAP
7h 32m2 stops
Delta Logo
11:00 am - 6:11 pmRAP-IDA
7h 11m2 stops
$1,611Delta
Find Deal
Wed, Sep 10 - Sun, Sep 14

momondo Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Rapid City 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, momondo users made 832,500 searches. Data last updated August 28, 2025.
Use the filters below to find and compare flights from Idaho Falls to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Wed 9/10

5:00 am-9:06 am

1 stop4h 06m

Rapid City

Sun 9/14

5:30 am-9:47 am

1 stop4h 17m

$254

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Wed 9/10

3:00 pm-10:32 pm

2 stops7h 32m

Rapid City

Sun 9/14

11:00 am-6:11 pm

2 stops7h 11m

$1,611

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Idaho Falls to Rapid City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Rapid City?

According to our data, Friday is the cheapest day to fly to Rapid City from Idaho Falls. The lowest ticket price found for a Friday departure recently was $238. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Rapid City is Thursday, with ticket prices averaging around $443.

When to book flights from Idaho Falls to Rapid City

Are you open to changing your travel dates? Check out the ideal times to fly from Idaho Falls to Rapid City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Idaho Falls to Rapid City (IDA to RAP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho Falls to Rapid City

Direct flights

None
There are no direct flights from Idaho Falls to Rapid City. There are no popular flight routes from Idaho Falls to Rapid City.
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  • How far is Idaho Falls Fanning Field to Rapid City by plane?

    Rapid City is 440.7 mi away from Idaho Falls Fanning Field. Flights usually cover this in 4h 06m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to Rapid City Airport?

    Prices for flights from Idaho Falls Fanning Field Airport to Rapid City Airport were last updated today.

  • How many operators does momondo search for flights from Idaho Falls Fanning Field Airport to Rapid City Airport?

  • How old do you have to be to fly from Idaho Falls Fanning Field Airport to Rapid City Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to Rapid City Airport.

  • What documentation or ID do you need to fly to Rapid City Airport?

    The necessary travel and health documents for your Rapid City Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Idaho Falls to Rapid City?

Best airlines flying from Idaho Falls to Rapid City

Compare and see reviews for airlines that fly from Idaho Falls to Rapid City with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $228Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights

Traveling to a place near Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Deadwood
Sturgis
Keystone
Spearfish
Custer
Hot Springs
Wall
Hill City

Why use momondo?

Why should I use momondo to find a flight deal from Idaho Falls to Rapid City?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Idaho Falls to Rapid City. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Idaho Falls to Rapid City with flexible booking policies on momondo?

Flights from Idaho Falls to Rapid City with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Idaho Falls to Rapid City?

Once all potential Idaho Falls to Rapid City flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Idaho Falls to Rapid City right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Rapid City from Idaho Falls. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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