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Cheap flights from Idaho to Rapid City from $244

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Rapid City departing on 12/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Rapid City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:40 pm - 10:08 pm
IDA
-
RAP
4h 28m
1 stop
United Airlines Logo
5:00 am - 9:53 am
RAP
-
IDA
4h 53m
1 stop
$300United Airlines
Thu, Nov 19 - Mon, Nov 23
United Airlines Logo
5:46 pm - 10:33 pm
BOI
-
RAP
4h 47m
1 stop
United Airlines Logo
5:58 pm - 10:40 pm
RAP
-
BOI
4h 42m
1 stop
$309United Airlines
Tue, Aug 4 - Tue, Aug 11
Delta Logo
5:30 am - 1:40 pm
BOI
-
RAP
8h 10m
1 stop
Delta Logo
4:30 pm - 11:59 pm
RAP
-
BOI
7h 29m
1 stop
$324Delta
Tue, Jul 21 - Sun, Aug 16
United Airlines Logo
5:00 am - 9:27 am
BOI
-
RAP
4h 27m
1 stop
United Airlines Logo
7:00 am - 1:35 pm
RAP
-
BOI
6h 35m
1 stop
$337United Airlines
Tue, Sep 8 - Sat, Sep 12
United Airlines Logo
4:18 pm - 10:25 pm
GEG
-
RAP
5h 07m
1 stop
United Airlines Logo
9:00 am - 3:11 pm
RAP
-
GEG
7h 11m
1 stop
$339United Airlines
Thu, Jul 23 - Mon, Jul 27
United Airlines Logo
10:31 am - 5:06 pm
BOI
-
RAP
6h 35m
1 stop
United Airlines Logo
5:00 am - 9:35 am
RAP
-
BOI
4h 35m
1 stop
$341United Airlines
Thu, Aug 13 - Mon, Aug 17
Delta Logo
2:50 pm - 10:18 pm
BOI
-
RAP
7h 28m
1 stop
Delta Logo
6:48 am - 1:29 pm
RAP
-
BOI
6h 41m
1 stop
$354Delta
Tue, Sep 29 - Sat, Oct 3
Allegiant Air Logo
9:47 am - 9:08 pm
IDA
-
RAP
11h 21m
1 stop
Allegiant Air Logo
9:50 pm - 4:00 pm
RAP
-
IDA
18h 10m
1 stop
$400Allegiant Air
Mon, Jul 27 - Sun, Aug 2
Allegiant Air Logo
9:47 am - 9:08 pm
IDA
-
RAP
11h 21m
1 stop
Allegiant Air Logo
12:25 pm - 8:55 am
RAP
-
IDA
20h 30m
1 stop
$456Allegiant Air
Mon, Jul 27 - Sat, Aug 1
Allegiant Air Logo
9:47 am - 11:35 am
IDA
-
RAP
25h 48m
1 stop
Allegiant Air Logo
9:50 pm - 4:00 pm
RAP
-
IDA
18h 10m
1 stop
$474Allegiant Air
Fri, Jul 24 - Sun, Aug 2

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United Airlines flights from Idaho to Rapid City

Our best United Airlines deals on Idaho to Rapid City flight tickets
United Airlines
Nov 19
IDA5:40 pmIdaho Falls Fanning Field
4h 28m
1 stop
RAP10:08 pmRapid City
Nov 23
RAP5:00 amRapid City
4h 53m
1 stop
IDA9:53 amIdaho Falls Fanning Field
$300
United Airlines
Aug 4
BOI5:46 pmBoise Air Term. Gowen Fld
4h 47m
1 stop
RAP10:33 pmRapid City
Aug 11
RAP5:58 pmRapid City
4h 42m
1 stop
BOI10:40 pmBoise Air Term. Gowen Fld
$309
United Airlines
Sep 8
BOI5:00 amBoise Air Term. Gowen Fld
4h 27m
1 stop
RAP9:27 amRapid City
Sep 12
RAP7:00 amRapid City
6h 35m
1 stop
BOI1:35 pmBoise Air Term. Gowen Fld
$337

Delta flights from Idaho to Rapid City

Our best Delta deals on Idaho to Rapid City flight tickets
Delta
Jul 21
BOI5:30 amBoise Air Term. Gowen Fld
8h 10m
1 stop
RAP1:40 pmRapid City
Aug 16
RAP4:30 pmRapid City
7h 29m
1 stop
BOI11:59 pmBoise Air Term. Gowen Fld
$324
Delta
Sep 29
BOI2:50 pmBoise Air Term. Gowen Fld
7h 28m
1 stop
RAP10:18 pmRapid City
Oct 3
RAP6:48 amRapid City
6h 41m
1 stop
BOI1:29 pmBoise Air Term. Gowen Fld
$354
Delta
Jul 21
BOI5:30 amBoise Air Term. Gowen Fld
8h 10m
1 stop
RAP1:40 pmRapid City
Aug 16
RAP4:30 pmRapid City
7h 29m
1 stop
BOI11:59 pmBoise Air Term. Gowen Fld
$438

momondo Fare Finder

 
Customize your flight search to find flights from Idaho 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 July 8, 2026.
Use the filters below to find and compare flights from Idaho to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Thu 11/19

5:40 pm-10:08 pm

1 stop4h 28m

Rapid City

Mon 11/23

5:00 am-9:53 am

1 stop4h 53m

$300

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Tue 8/4

5:46 pm-10:33 pm

1 stop4h 47m

Rapid City

Tue 8/11

5:58 pm-10:40 pm

1 stop4h 42m

$309

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Tue 7/21

5:30 am-1:40 pm

1 stop8h 10m

Rapid City

Sun 8/16

4:30 pm-11:59 pm

1 stop7h 29m

$324

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Tue 9/8

5:00 am-9:27 am

1 stop4h 27m

Rapid City

Sat 9/12

7:00 am-1:35 pm

1 stop6h 35m

$337

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Thu 7/23

4:18 pm-10:25 pm

1 stop5h 07m

Rapid City

Mon 7/27

9:00 am-3:11 pm

1 stop7h 11m

$339

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Thu 8/13

10:31 am-5:06 pm

1 stop6h 35m

Rapid City

Mon 8/17

5:00 am-9:35 am

1 stop4h 35m

$341

BoiseRapid City

BOI - RAP

BOIRAP

Boise Air Term. Gowen Fld

Tue 9/29

2:50 pm-10:18 pm

1 stop7h 28m

Rapid City

Sat 10/3

6:48 am-1:29 pm

1 stop6h 41m

$354

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Mon 7/27

9:47 am-9:08 pm

1 stop11h 21m

Rapid City

Sun 8/2

9:50 pm-4:00 pm

1 stop18h 10m

$400

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Mon 7/27

9:47 am-9:08 pm

1 stop11h 21m

Rapid City

Sat 8/1

12:25 pm-8:55 am

1 stop20h 30m

$456

Idaho FallsRapid City

IDA - RAP

IDARAP

Idaho Falls Fanning Field

Fri 7/24

9:47 am-11:35 am

1 stop25h 48m

Rapid City

Sun 8/2

9:50 pm-4:00 pm

1 stop18h 10m

$474

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Rapid City from

How to get the cheapest flight ticket from Idaho 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 month to fly to Rapid City?

The month of April is, on average, the cheapest month to fly to Rapid City from Idaho, with most prices found around $0. If you aren’t able to travel to Rapid City during the month of April, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $248.

Cheap Idaho to Rapid City flight deals and tips

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

Fastest flight time

4h 27m

Direct flights

None
The fastest flight from Idaho to Rapid City takes 4h 27m
There are no direct flights from Idaho to Rapid City. There are no popular flight routes from Idaho to Rapid City.
Search flight deals

Frequently asked questions about flying from Idaho to Rapid City

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

    Prices for flights from Idaho to Rapid City Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Rapid City Airport.

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

    The travel and health documents required for your trip to Rapid City Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Rapid City Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Idaho to Rapid City

Compare and see reviews for airlines that fly from Idaho to Rapid City with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $318Free CancellationRating
7.4
9,948 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
Keystone
Sturgis
Custer
Wall
Hot Springs
Hill City
Spearfish

Why use momondo?

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

It is quick and easy to find Idaho to Rapid City flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Rapid City that suits you.

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

Yes. All flights to Rapid City from Idaho on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Idaho 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 to Rapid City right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Idaho to Rapid City flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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