What are the cheapest airlines flying from Rapid City to Boise round-trip?

Our cheapest airline available from Rapid City to Boise is Delta. Our recent data shows that you can find tickets from as low as $249 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $259 and $447 round-trip. Delta is priced at 34% lower than the current average price of a flight leaving 3 months from now.

What is the cheapest day to fly from Rapid City to Boise?

Travelers seeking maximum savings on their Rapid City to Boise flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

If weather is an important factor for your trip to Boise, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

What is the cheapest day to fly round-trip from Rapid City to Boise?

Monday flights are found to be more expensive to fly from Rapid City to Boise. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Boise.

What is the cheapest month to fly from Rapid City to Boise?

January can be a great time to fly to Boise from Rapid City with a flight ticket averaging about $383. Cheapflights users have found deals in the month of January for as cheap as $248. The most expensive prices can be found in the month of November.

What is the cheapest time of day to fly from RAP to BOI?

Unlike in the morning, when flights are generally more expensive, you can save up to 31% on flights from Rapid City to Boise by exploring options for tickets in the afternoon.

Can I find deals for flights from Rapid City to Boise that include hotel bookings?

Yes. In addition to deals on Rapid City to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Rapid City to Boise?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Boise.

Can I find deals for business class flights from Rapid City to Boise?

Yes. Cheapflights offers flight deals from Rapid City to Boise by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$200+ Flights from Rapid City to Boise

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Cheap flight deals from Rapid City to Boise

Round-trip from	$249 (Delta)
One-way from	$200 (Delta)
Popular in	November
Cheapest in	January
Average price	$308

From Rapid City to Boise Air Term. Gowen Fld

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One-way flight from Rapid City to Boise Air Term. Gowen Fld

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Highest demand for flights based on searches. 14% potential increase in price ($66 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Rapid City to Boise

Cheapest flights from Rapid City to Boise
Explore the most affordable flight options available from Rapid City to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Wed 9/36:25 amRAP - BOI

1 stop7h 36mDelta

Sat 9/133:20 pmBOI - RAP

1 stop7h 10mDelta

Deal found 7/28

$249

Wed 8/135:30 amRAP - BOI

1 stop4h 16mUnited Airlines

Sun 8/175:00 amBOI - RAP

1 stop4h 04mUnited Airlines

Deal found 7/29

$259

Wed 9/35:00 pmRAP - BOI

2 stops20h 17mAmerican Airlines

Sat 9/131:57 pmBOI - RAP

2 stops22h 05mAmerican Airlines

Deal found 7/28

$447

Best flights from Rapid City to Boise
Discover carefully curated flight deals from Rapid City to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Wed 9/36:25 amRAP - BOI

1 stop7h 36mDelta

Sat 9/133:20 pmBOI - RAP

1 stop7h 10mDelta

Deal found 7/28

$249

Wed 8/135:30 amRAP - BOI

1 stop4h 16mUnited Airlines

Sun 8/175:00 amBOI - RAP

1 stop4h 04mUnited Airlines

Deal found 7/29

$259

Wed 9/35:00 pmRAP - BOI

2 stops20h 17mAmerican Airlines

Sat 9/131:57 pmBOI - RAP

2 stops22h 05mAmerican Airlines

Deal found 7/28

$447

Last-minute flights from Rapid City to Boise
Discover last-minute flight deals from Rapid City to Boise. Data last updated July 29, 2025 and is based on user searches.

Wed 8/135:30 amRAP - BOI

1 stop4h 16mUnited Airlines

Sun 8/175:00 amBOI - RAP

1 stop4h 04mUnited Airlines

Deal found 7/29

$259

Wed 8/205:39 amRAP - BOI

2 stops14h 31mAmerican Airlines

Sun 8/247:00 amBOI - RAP

1 stop9h 11mAmerican Airlines

Deal found 7/27

$469

Thu 8/216:20 amRAP - BOI

1 stop7h 41mDelta

Sat 8/233:06 pmBOI - RAP

1 stop7h 26mDelta

Deal found 7/29

$279

One-way flights from Rapid City to Boise
Search for one-way flight options from Rapid City to Boise. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Sun 8/176:26 amRAP - BOI

1 stop7h 33mDelta

Deal found 7/28

$200

Fri 8/155:59 pmRAP - BOI

2 stops17h 44mUnited Airlines

Deal found 7/28

$318

Fly from

Fly to

Route

Depart

Return

Price

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Wed 9/3

6:25 am-2:01 pm

1 stop7h 36m

Boise Air Term. Gowen Fld

Sat 9/13

3:20 pm-10:30 pm

1 stop7h 10m

$249

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Wed 8/13

5:30 am-9:46 am

1 stop4h 16m

Boise Air Term. Gowen Fld

Sun 8/17

5:00 am-9:04 am

1 stop4h 04m

$259

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Wed 9/3

5:00 pm-1:17 pm

2 stops20h 17m

Boise Air Term. Gowen Fld

Sat 9/13

1:57 pm-12:02 pm

2 stops22h 05m

$447

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Sun 8/17

6:26 am-1:59 pm

1 stop7h 33m

$200

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Fri 8/15

5:59 pm-11:43 am

2 stops17h 44m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Rapid City to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Rapid City with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Rapid City to Boise

What is the cheapest month to book a flight from Rapid City to Boise?

Currently, October is the cheapest month in which you can book a flight from Rapid City to Boise (average of $314). Flying from Rapid City to Boise in June is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Boise

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Rapid City to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,977 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,899 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from Rapid City to Boise round-trip?
Our cheapest airline available from Rapid City to Boise is Delta. Our recent data shows that you can find tickets from as low as $249 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $259 and $447 round-trip. Delta is priced at 34% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for flights from Rapid City to Boise that include hotel bookings?
Yes. In addition to deals on Rapid City to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Rapid City to Boise?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Boise.
Can I find deals for business class flights from Rapid City to Boise?
Yes. Cheapflights offers flight deals from Rapid City to Boise by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Rapid City to Boise?
Currently, October is the cheapest month in which you can book a flight from Rapid City to Boise (average of $314). Flying from Rapid City to Boise in June is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Meridian

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Ontario

McCall

Caldwell

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Other flights to Boise

Top 2 airlines flying from Rapid City to Boise

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$248	Average$248	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$279	Average$441	FlexibilityNo cancel fee	On-time69%

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$200+ Cheap flights from Rapid City to Boise (RAP - BOI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Rapid City to Boise with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Rapid City to Boise

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Rapid City to Boise

Cheapest flights from Rapid City to BoiseExplore the most affordable flight options available from Rapid City to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Rapid City to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Rapid City to Boise that are best for you.

Best time to book a flight from Rapid City to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Rapid City with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Rapid City to Boise

What is the cheapest month to book a flight from Rapid City to Boise?

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boise. Reviews last updated July 29, 2025.

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Rapid City to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Rapid City to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Rapid City to Boise round-trip?

Can I find deals for flights from Rapid City to Boise that include hotel bookings?

How can I find direct flights from Rapid City to Boise?

Can I find deals for business class flights from Rapid City to Boise?

What is the cheapest month to book a flight from Rapid City to Boise?

Traveling to a place near Boise?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Rapid City to Boise

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Rapid City to Boise

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Travel Smart

Cheapest flights from Rapid City to Boise
Explore the most affordable flight options available from Rapid City to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.