BOI - RAP

$241 Find Cheap Flights from Boise to Rapid City

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Rapid City departing on 1/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Rapid City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Rapid City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Rapid City, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$269
Overall average: $348
United Airlines
Mon 2/2Mon 2/9
BOI - RAP • 1 stop
Cheapest one-way
$208
Allegiant Air
Fri 1/16
BOI - RAP • 1 stop
Top airlines
United Airlines
Cheapest • from $269 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 39% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Rapid City!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Rapid City (BOI-RAP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Rapid City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Rapid City

Mon, Feb 2 - Mon, Feb 9
United Airlines Logo
2:37 pm - 8:32 pm
BOI
-
RAP
5h 55m1 stop
United Airlines Logo
4:40 pm - 9:52 pm
RAP
-
BOI
5h 12m1 stop
$269United Airlines
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
6:10 am - 11:25 am
BOI
-
RAP
5h 15m1 stop
United Airlines Logo
5:10 am - 10:06 am
RAP
-
BOI
4h 56m1 stop
$279United Airlines
Fri, Feb 13 - Tue, Feb 17
Delta Logo
2:54 pm - 10:27 pm
BOI
-
RAP
7h 33m1 stop
Delta Logo
6:00 am - 1:59 pm
RAP
-
BOI
7h 59m1 stop
$295Delta
Wed, Feb 4 - Wed, Feb 11
Delta Logo
5:45 am - 3:25 pm
BOI
-
RAP
9h 40m2 stops
Delta Logo
6:00 am - 1:34 pm
RAP
-
BOI
7h 34m1 stop
$359Delta
Fri, Feb 13 - Tue, Feb 17
American Airlines Logo
7:00 am - 1:51 pm
BOI
-
RAP
6h 51m1 stop
American Airlines Logo
2:21 pm - 10:22 pm
RAP
-
BOI
8h 01m1 stop
$371American Airlines
Thu, Mar 12 - Mon, Mar 16
United Airlines Logo
6:15 am - 1:13 pm
BOI
-
RAP
6h 58m1 stop
United Airlines Logo
2:45 pm - 9:29 pm
RAP
-
BOI
6h 44m1 stop
$404United Airlines
Wed, Mar 11 - Tue, Mar 17
American Airlines Logo
1:39 pm - 10:36 pm
BOI
-
RAP
8h 57m1 stop
American Airlines Logo
2:21 pm - 10:23 pm
RAP
-
BOI
8h 02m1 stop
$415American Airlines
Thu, Jun 4 - Fri, Jun 5
United Airlines Logo
5:22 pm - 10:08 pm
BOI
-
RAP
4h 46m1 stop
United Airlines Logo
10:45 am - 5:55 pm
RAP
-
BOI
7h 10m1 stop
$416United Airlines
Thu, Jan 22 - Mon, Jan 26
Delta Logo
11:20 am - 10:28 pm
BOI
-
RAP
11h 08m2 stops
Delta Logo
6:00 am - 1:34 pm
RAP
-
BOI
7h 34m1 stop
$424Delta
Mon, Feb 2 - Mon, Feb 9
Delta Logo
1:00 pm - 10:28 pm
BOI
-
RAP
9h 28m2 stops
Delta Logo
6:00 am - 1:34 pm
RAP
-
BOI
7h 34m1 stop
$444Delta
Booking Insights

KAYAK's insights & trends for Boise to Rapid City flights

Get data-powered insights and trends into flights from Boise to Rapid City to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to Rapid City, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boise to Rapid City is November, where tickets cost $248 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $671 and $467 respectively.

Find deals

Good to know

Low seasonApril
Cheapest flight$208
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Boise to Rapid City

When to book flights from Boise to Rapid City

Are your dates flexible? Find out the best times to travel from Boise to Rapid City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boise to Rapid City

  • What is the cheapest flight from Boise to Rapid City?

    In the last 3 days, the lowest price for a flight from Boise to Rapid City was $208 for a one-way ticket and $269 for a round-trip.

  • Do I need a passport to fly between Boise and Rapid City?

    No, a passport isn't needed to fly from Boise to Rapid City. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Boise to Rapid City?

    Boise and Rapid City are both served by 1 main airport. You will leave Boise from Boise Air Term. Gowen Fld and will be arriving at Rapid City.

  • Which aircraft models fly most regularly from Boise to Rapid City?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boise to Rapid City?

    Star Alliance is the only airline alliance operating flights between Boise and Rapid City.

  • How does KAYAK find such low prices on flights from Boise to Rapid City?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to Rapid City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to Rapid City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Rapid City from Boise is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to Rapid City?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Rapid City with an airline and back to Boise with another airline. Booking your flights between Boise and RAP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to Rapid City?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Rapid City from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boise to Rapid City

 
See real verified KAYAK customer reviews for airlines flying from Boise to Rapid City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to Rapid City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9139 reviews
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

6.0 GoodPatricia, Jan 2026
ORD - LAS
Read more United Airlines reviews

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

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

Information on your arrival and departure airports

Boise (BOI)
Rapid City (RAP)