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$125+ 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Rapid City to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$249
(United Airlines)

One-way from

$125
(Mytrip)

Popular in

November

Cheapest in

January

Average price

$494
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. 15% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:30 amRAP - BOI
1 stop4h 12mUnited Airlines
Sun 8/245:00 amBOI - RAP
1 stop4h 06mUnited Airlines
Deal found 6/10$249
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/96:50 amRAP - BOI
1 stop7h 22mDelta
Tue 7/1512:50 pmBOI - RAP
2 stops9h 41mDelta
Deal found 6/10$254
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/39:59 pmRAP - BOI
1 stop10h 49mMultiple Airlines
Sun 7/65:50 pmBOI - RAP
1 stop22h 37mMultiple Airlines
Deal found 6/10$295
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:32 pmRAP - BOI
1 stop9h 16mAmerican Airlines
Mon 9/81:38 pmBOI - RAP
1 stop7h 15mAmerican Airlines
Deal found 6/12$301

Cheapflights Fare Finder

Customize your flight search to find flights from Rapid City to Boise 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Rapid City to Boise that are best for you.

Fly from

Rapid City

Fly to

Boise

Route

Depart

Return

Price

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Wed 8/20

5:30 am-9:42 am

1 stop4h 12m

Boise Air Term. Gowen Fld

Sun 8/24

5:00 am-9:06 am

1 stop4h 06m

$249

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Wed 7/9

6:50 am-2:12 pm

1 stop7h 22m

Boise Air Term. Gowen Fld

Tue 7/15

12:50 pm-10:31 pm

2 stops9h 41m

$254

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Thu 7/3

9:59 pm-8:48 am

1 stop10h 49m

Boise Air Term. Gowen Fld

Sun 7/6

5:50 pm-4:27 pm

1 stop22h 37m

$295

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Fri 9/5

12:32 pm-9:48 pm

1 stop9h 16m

Boise Air Term. Gowen Fld

Mon 9/8

1:38 pm-8:53 pm

1 stop7h 15m

$301

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Sun 7/20

9:49 pm-6:52 pm

1 stop21h 03m

$125

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Sat 7/12

7:00 am-1:29 pm

1 stop6h 29m

$166

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Sat 7/12

10:26 am-11:33 pm

2 stops13h 07m

$256

Rapid CityBoise

RAP - BOI

RAPBOI

Rapid City

Mon 6/16

11:51 am-12:14 am

2 stops12h 23m

$391

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 $395). 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.

Rainfall in Boise by month

Plan your trip to Boise by taking into account the average rainfall totals by month.

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.

Temperature in Boise by month

Plan your trip to Boise by taking into account the average temperature totals by month.

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).

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 June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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

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?

    Our cheapest airline available from Rapid City to Boise is United Airlines. Our recent data shows that you can find tickets from as low as $249 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $254 and $301 round-trip. United Airlines is priced at 35% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Rapid City to Boise one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $166. American Airlines flights start at $256 while deals on Delta start at $391 one-way.

  • 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 $395). 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

Traveling to a place near Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Nampa
Meridian
Ontario
McCall
Caldwell

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Top 2 airlines flying from Rapid City to Boise

Discover the top 2 airlines that operate flights from Rapid City to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$248FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$432FlexibilityNo cancel feeOn-time69%

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