HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rapid City

$239+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — RAP
May 3 — May 101
Sun 5/3
Sun 5/10
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.

Cheap 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 April 3, 2026.

This Delta deal was found by Cheapflights users on 3/30. 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.
Sat 4/256:00 pm
BOS
-
RAP
1 stop6h 20m
Delta
Wed 4/293:55 pm
RAP
-
BOS
1 stop5h 40m
Delta
Deal found 3/30$348
This American Airlines deal was found by Cheapflights users on 3/29. 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.
Tue 4/286:30 am
BOS
-
RAP
1 stop6h 53m
American Airlines
Tue 5/511:53 am
RAP
-
BOS
1 stop8h 15m
American Airlines
Deal found 3/29$349
This Delta deal was found by Cheapflights users on 3/31. 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.
Tue 7/75:55 am
BOS
-
RAP
1 stop6h 24m
Delta
Thu 7/164:28 pm
RAP
-
BOS
1 stop5h 29m
Delta
Deal found 3/31$359
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/294:50 pm
BOS
-
RAP
1 stop7h 30m
United Airlines
Wed 5/65:20 am
RAP
-
BOS
1 stop6h 27m
United Airlines
Deal found 4/1$369
This Delta deal was found by Cheapflights users on 3/30. 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.
Fri 4/245:50 am
BOS
-
RAP
1 stop6h 27m
Delta
Tue 4/286:00 am
RAP
-
BOS
1 stop5h 59m
Delta
Deal found 3/30$384
This Delta deal was found by Cheapflights users on 3/30. 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.
Sat 4/2512:00 pm
BOS
-
RAP
2 stops12h 20m
Delta
Fri 5/110:58 am
RAP
-
BOS
1 stop6h 37m
Delta
Deal found 3/30$389
This Delta deal was found by Cheapflights users on 3/29. 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.
Tue 4/289:06 am
BOS
-
RAP
2 stops8h 09m
Delta
Tue 5/510:58 am
RAP
-
BOS
2 stops9h 18m
Delta
Deal found 3/29$394
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/154:28 pm
BOS
-
RAP
1 stop7h 13m
United Airlines
Sat 4/182:47 pm
RAP
-
BOS
1 stop7h 12m
United Airlines
Deal found 4/1$399
This Delta deal was found by Cheapflights users on 3/30. 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 4/265:50 am
BOS
-
RAP
1 stop6h 27m
Delta
Sat 5/23:55 pm
RAP
-
BOS
2 stops13h 34m
Delta
Deal found 3/30$401

Find 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 April 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$348
(Delta)

One-way from

$239
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$495
Provider with most accurate pricing for Boston Logan Intl-Rapid City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Rapid City flights.
Search Deals
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. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 3, 2026.
Use the filters below to find and compare flights from Boston to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Tue 4/28

6:30 am-11:23 am

1 stop6h 53m

Rapid City

Tue 5/5

11:53 am-10:08 pm

1 stop8h 15m

$349

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 4/29

11:17 am-7:02 pm

2 stops9h 45m

Rapid City

Wed 5/6

5:20 am-1:47 pm

1 stop6h 27m

$374

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Tue 4/28

9:06 am-3:15 pm

2 stops8h 09m

Rapid City

Tue 5/5

10:58 am-10:16 pm

2 stops9h 18m

$394

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Tue 4/14

4:50 pm-10:28 pm

1 stop7h 38m

Rapid City

Sat 4/18

7:00 am-6:19 pm

2 stops9h 19m

$404

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sat 4/25

12:00 pm-10:20 pm

2 stops12h 20m

Rapid City

Sat 5/2

3:55 pm-7:29 am

2 stops13h 34m

$406

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 4/29

11:10 am-10:20 pm

2 stops13h 10m

Rapid City

Wed 5/6

10:58 am-10:16 pm

2 stops9h 18m

$429

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Tue 6/23

6:00 am-10:24 am

1 stop6h 24m

Rapid City

Tue 6/30

11:20 am-9:59 pm

1 stop8h 39m

$494
Quickest round-trip

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Fri 4/17

6:00 am-10:36 am

1 stop6h 36m

Rapid City

Tue 4/21

9:20 am-7:41 pm

1 stop8h 21m

$547

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 5/27

2:05 pm-9:33 pm

2 stops9h 28m

Rapid City

Sun 5/31

3:23 pm-12:15 am

1 stop6h 52m

$548

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Tue 5/12

10:45 am-8:28 pm

2 stops11h 43m

Rapid City

Sun 5/17

7:00 am-6:04 am

1 stop21h 04m

$557

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Boston to Rapid City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Rapid City in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Rapid City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Rapid City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Rapid City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Rapid City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Rapid City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 April 2, 2026.

The best time to book flights from Boston to Rapid City is 57 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, November is the cheapest month in which you can book a flight from Boston to Rapid City (average of $288). Flying from Boston to Rapid City in March is currently the most expensive (average of $486). 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.

How much does it cost to fly round-trip from Boston to Rapid City?

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 April 3, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Boston to Rapid City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,374 reviews

Overall

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,374 reviews
Delta
7.9
Good
8,374 reviews

Overall

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,538 reviews
Delta
7.9
Good
8,374 reviews

Overall

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,551 reviews
Delta
7.9
Good
8,374 reviews

Overall

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from Boston to Rapid City?

    For as low as $349, American Airlines can have you in Rapid City from Boston in 6h 53m. Airlines will cover a distance of 1607 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from Boston to Rapid City is Delta. Our recent data shows that you can find tickets from as low as $288 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $335 and $378 round-trip. These flights start at 44% 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 American Airlines, which is currently one of the cheapest options available, starting at $202. Delta flights start at $255 while deals on United Airlines start at $285 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, November is the cheapest month in which you can book a flight from Boston to Rapid City (average of $288). Flying from Boston to Rapid City in March is currently the most expensive (average of $486). 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
Keystone
Deadwood
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.
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 April 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$288Average$519FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$335Average$539FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$378Average$543FlexibilityNo 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.
Site
©2026 Cheapflights