HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rapid City

$143+ Cheap flights from Boston to Rapid City (BOS - RAP)

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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — RAP
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Rapid City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Boston Logan Intl to Rapid City are usually found in September or January, booked 27 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap flight deals from Boston to Rapid City

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Rapid City (RAP). 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

$289
(United Airlines)

One-way from

$143
(Booking.com)

Popular in

February

Cheapest in

September

Average price

$588
From Boston Logan Intl to Rapid City
Search Deals
One-way flight from Boston Logan Intl to Rapid City
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Boston to Rapid City

Cheapest flights from Boston to Rapid City
Explore the most affordable flight options available from Boston to Rapid City. 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.
Sat 7/56:07 amBOS - RAP
1 stop6h 13mUnited Airlines
Fri 7/111:43 pmRAP - BOS
1 stop7h 33mUnited Airlines
Deal found 6/10$289
This Delta deal was found by Cheapflights users on 6/11. 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.
Sun 8/245:40 amBOS - RAP
1 stop6h 34mDelta
Sat 8/304:25 pmRAP - BOS
1 stop5h 21mDelta
Deal found 6/11$314
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.
Mon 9/155:00 amBOS - RAP
1 stop9h 33mAmerican Airlines
Mon 9/226:12 pmRAP - BOS
1 stop13h 20mAmerican Airlines
Deal found 6/12$323
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 7/2412:50 pmBOS - RAP
2 stops27h 31mMultiple Airlines
Thu 7/319:59 pmRAP - BOS
2 stops19h 22mMultiple Airlines
Deal found 6/10$324
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/46:30 amBOS - RAP
1 stop11h 57mSun Country Air
Fri 8/85:21 pmRAP - BOS
1 stop15h 16mSun Country Air
Deal found 6/10$390

Cheapflights Fare Finder

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

Fly from

Boston

Fly to

Rapid City

Route

Depart

Return

Price

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sat 7/5

6:07 am-10:20 am

1 stop6h 13m

Rapid City

Fri 7/11

1:43 pm-11:16 pm

1 stop7h 33m

$289

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sun 8/24

5:40 am-10:14 am

1 stop6h 34m

Rapid City

Sat 8/30

4:25 pm-11:46 pm

1 stop5h 21m

$314

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Mon 9/15

5:00 am-12:33 pm

1 stop9h 33m

Rapid City

Mon 9/22

6:12 pm-9:32 am

1 stop13h 20m

$323

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Thu 7/24

12:50 pm-2:21 pm

2 stops27h 31m

Rapid City

Thu 7/31

9:59 pm-7:21 pm

2 stops19h 22m

$324

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Mon 8/4

6:30 am-4:27 pm

1 stop11h 57m

Rapid City

Fri 8/8

5:21 pm-10:37 am

1 stop15h 16m

$390

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Mon 7/14

6:30 am-4:27 pm

1 stop11h 57m

$143

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 7/30

6:15 am-4:38 pm

1 stop12h 23m

$160

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Tue 7/29

7:00 am-5:31 pm

1 stop12h 31m

$178

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Mon 9/8

5:34 am-10:14 am

1 stop6h 40m

$231

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Thu 7/24

9:18 am-9:09 pm

2 stops13h 51m

$250

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 11 results
1
2

Best time to book a flight from Boston to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City from Boston 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 Boston to Rapid City

How far ahead should I book a flight from Boston to Rapid City?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Rapid City. Price data was last updated on June 9, 2025.

The best time to book flights from Boston to Rapid City is 27 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Boston to Rapid City (average of $348). Flying from Boston to Rapid City in June is currently the most expensive (average of $504). 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.

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

Find hourly flight availability from Boston to Rapid City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 10% on flights from Boston to Rapid City by exploring options for tickets in the afternoon.

Rainfall in Rapid City by month

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

In terms of precipitation, rainfall in Rapid City ranges from 0.3 - 3.2 inches per month. May is typically the wettest month, when rainfall can reach 3.2 in. January is typically the driest time to visit Rapid City when rainfall is around 0.3 in.

Temperature in Rapid City by month

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

If weather is an important factor for your trip to Rapid City, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Rapid City

Get insights into the airlines that provide service to Rapid City. 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 Rapid City. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Boston to Rapid City, such as Delta, United Airlines and Allegiant Air. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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!
Allegiant Air
7.3
Good
725 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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!
Sun Country Air
6.9
Okay
345 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

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 Boston to Rapid City. 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 Boston to Rapid City round-trip?

    Our cheapest airline available from Boston to Rapid City is United Airlines. Our recent data shows that you can find tickets from as low as $289 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $314 and $323 round-trip. These flights start at 54% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Sun Country Air, which is currently one of the cheapest options available, starting at $143. American Airlines flights start at $172 while deals on Delta start at $231 one-way.

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

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

  • How can I find direct flights from Boston to Rapid City?

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

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

    Yes. Cheapflights offers flight deals from Boston to Rapid City 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 Boston to Rapid City?

    Currently, January is the cheapest month in which you can book a flight from Boston to Rapid City (average of $348). Flying from Boston to Rapid City in June is currently the most expensive (average of $504). 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 Boston?

Book flights to Boston if you plan to visit one of these locations
Deadwood
Keystone
Sturgis
Spearfish

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 Boston to Rapid City

See prices for flight routes from nearby airports that may be better suited for you.
Hartford to Rapid City flights
Boston to Sioux Falls flights
Albany to Rapid City flights
Hartford to Sioux Falls flights
Albany to Sioux Falls flights

Top 3 airlines flying from Boston to Rapid City

Discover the top 3 airlines that operate flights from Boston to Rapid City. 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$288Average$625FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$450Average$600FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$480Average$663FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.