What is the cheapest airline that flies from Rapid City to Idaho?

American Airlines, Delta, and United Airlines are the most popular carriers operating from Rapid City to Idaho

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

Prices for flights from Rapid City Airport to Idaho are refreshed on a daily basis.

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

As of April 2026, there are 2 operators available to choose from for flights from Rapid City Airport to Idaho.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rapid City Airport to Idaho.

What documentation or ID do you need to fly to Idaho?

The travel and health documents required for your trip to Idaho 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 Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$211 Cheap Flights from Rapid City to Idaho in 2026

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Find the cheapest flights from Rapid City to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:00 am - 3:43 pm

RAP

IDA

5h 43m

1 stop

5:26 pm - 9:55 pm

IDA

RAP

4h 29m

1 stop

$329United Airlines

Fri, May 1 - Wed, May 6

11:20 am - 5:56 pm

RAP

BOI

6h 36m

1 stop

5:46 pm - 10:25 pm

BOI

RAP

4h 39m

1 stop

$329United Airlines

Sat, May 23 - Wed, May 27

11:20 am - 3:12 pm

RAP

GEG

4h 52m

1 stop

4:13 pm - 10:33 pm

GEG

RAP

5h 20m

1 stop

$329United Airlines

Sat, Jul 11 - Tue, Jul 14

10:00 am - 3:43 pm

RAP

IDA

5h 43m

1 stop

5:26 pm - 9:55 pm

IDA

RAP

4h 29m

1 stop

$334United Airlines

Fri, May 1 - Tue, May 5

5:20 am - 9:54 am

RAP

BOI

4h 34m

1 stop

2:33 pm - 8:28 pm

BOI

RAP

5h 55m

1 stop

$339United Airlines

Tue, Apr 28 - Sat, May 2

2:35 pm - 9:16 pm

RAP

GEG

7h 41m

1 stop

4:10 pm - 9:55 pm

GEG

RAP

4h 45m

1 stop

$339United Airlines

Thu, Apr 30 - Mon, May 4

2:25 pm - 7:20 pm

RAP

GEG

5h 55m

1 stop

7:00 am - 1:48 pm

GEG

RAP

5h 48m

1 stop

$345Delta

Thu, Oct 1 - Sun, Oct 4

11:20 am - 3:11 pm

RAP

GEG

4h 51m

1 stop

5:00 am - 12:29 pm

GEG

RAP

6h 29m

1 stop

$354United Airlines

Wed, Jul 8 - Sat, Jul 11

10:21 am - 5:56 pm

RAP

BOI

7h 35m

1 stop

5:46 pm - 10:33 pm

BOI

RAP

4h 47m

1 stop

$357United Airlines

Thu, Jun 4 - Sat, Jun 6

2:25 pm - 7:20 pm

RAP

GEG

5h 55m

1 stop

7:00 am - 1:48 pm

GEG

RAP

5h 48m

1 stop

$388Delta

Thu, Oct 1 - Sun, Oct 4

United Airlines flights from Rapid City to Idaho

Our best United Airlines deals on Rapid City to Idaho flight tickets

United Airlines

May 23

RAP11:20 amRapid City

6h 36m

1 stop

BOI5:56 pmBoise Air Term. Gowen Fld

May 27

BOI5:46 pmBoise Air Term. Gowen Fld

4h 39m

1 stop

RAP10:25 pmRapid City

$329

United Airlines

May 1

RAP10:00 amRapid City

5h 43m

1 stop

IDA3:43 pmIdaho Falls Fanning Field

May 5

IDA5:26 pmIdaho Falls Fanning Field

4h 29m

1 stop

RAP9:55 pmRapid City

$334

United Airlines

Apr 28

RAP5:20 amRapid City

4h 34m

1 stop

BOI9:54 amBoise Air Term. Gowen Fld

May 2

BOI2:33 pmBoise Air Term. Gowen Fld

5h 55m

1 stop

RAP8:28 pmRapid City

$339

Delta flights from Rapid City to Idaho

Our best Delta deals on Rapid City to Idaho flight tickets

Delta

Oct 1

RAP2:25 pmRapid City

5h 55m

1 stop

GEG7:20 pmSpokane

Oct 4

GEG7:00 amSpokane

5h 48m

1 stop

RAP1:48 pmRapid City

$345

Delta

Oct 1

RAP2:25 pmRapid City

5h 55m

1 stop

GEG7:20 pmSpokane

Oct 4

GEG7:00 amSpokane

5h 48m

1 stop

RAP1:48 pmRapid City

$388

Delta

Apr 28

RAP6:00 amRapid City

11h 22m

2 stops

BOI5:22 pmBoise Air Term. Gowen Fld

May 2

BOI3:23 pmBoise Air Term. Gowen Fld

6h 57m

1 stop

RAP10:20 pmRapid City

$399

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Fri 5/1

10:00 am-3:43 pm

1 stop5h 43m

Idaho Falls Fanning Field

Wed 5/6

5:26 pm-9:55 pm

1 stop4h 29m

$329

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Sat 5/23

11:20 am-5:56 pm

1 stop6h 36m

Boise Air Term. Gowen Fld

Wed 5/27

5:46 pm-10:25 pm

1 stop4h 39m

$329

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Sat 7/11

11:20 am-3:12 pm

1 stop4h 52m

Spokane

Tue 7/14

4:13 pm-10:33 pm

1 stop5h 20m

$329

Rapid CityIdaho Falls

RAP - IDA

RAPIDA

Rapid City

Fri 5/1

10:00 am-3:43 pm

1 stop5h 43m

Idaho Falls Fanning Field

Tue 5/5

5:26 pm-9:55 pm

1 stop4h 29m

$334

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Tue 4/28

5:20 am-9:54 am

1 stop4h 34m

Boise Air Term. Gowen Fld

Sat 5/2

2:33 pm-8:28 pm

1 stop5h 55m

$339

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Thu 4/30

2:35 pm-9:16 pm

1 stop7h 41m

Spokane

Mon 5/4

4:10 pm-9:55 pm

1 stop4h 45m

$339

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Thu 10/1

2:25 pm-7:20 pm

1 stop5h 55m

Spokane

Sun 10/4

7:00 am-1:48 pm

1 stop5h 48m

$345

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Wed 7/8

11:20 am-3:11 pm

1 stop4h 51m

Spokane

Sat 7/11

5:00 am-12:29 pm

1 stop6h 29m

$354

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Thu 6/4

10:21 am-5:56 pm

1 stop7h 35m

Boise Air Term. Gowen Fld

Sat 6/6

5:46 pm-10:33 pm

1 stop4h 47m

$357

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Thu 10/1

2:25 pm-7:20 pm

1 stop5h 55m

Spokane

Sun 10/4

7:00 am-1:48 pm

1 stop5h 48m

$388

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

Can stopping save me money on Rapid City to Idaho flights?

You could potentially save up to 11% on your flight if you consider stops on a Rapid City to Idaho flight.

Cheap Rapid City to Idaho flight deals and tips

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

Fastest flight time	4h 26m
Direct flights	None

The fastest flight from Rapid City to Idaho takes 4h 26m

There are no direct flights from Rapid City to Idaho. There are no popular flight routes from Rapid City to Idaho.

Search flight deals

Frequently asked questions about flying from Rapid City to Idaho

When did momondo last update prices for flights from Rapid City Airport to Idaho?
Prices for flights from Rapid City Airport to Idaho are refreshed on a daily basis.
How many operators does momondo search for flights from Rapid City Airport to Idaho?
As of April 2026, there are 2 operators available to choose from for flights from Rapid City Airport to Idaho.
How old do you have to be to fly from Rapid City Airport to Idaho?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rapid City Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents required for your trip to Idaho 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 Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Rapid City to Idaho

Compare and see reviews for airlines that fly from Rapid City to Idaho with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $152	Free Cancellation	Rating 7.4 9,604 reviews		Search United Airlines flights
Delta	PriceFrom $248	Free Cancellation	Rating 7.9 8,409 reviews		Search Delta flights

Why use momondo?

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

Finding the right flight to Idaho from Rapid City is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Idaho quick and easy, saving you time and money.

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

All flight searches from Rapid City to Idaho on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Rapid City to Idaho flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Idaho from Rapid City are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.