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Rapid City

$173+ 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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — RAP
Jul 27 — Aug 31
Mon 7/27
Mon 8/3
1 adult, Economy
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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 June 27, 2026.

This American Airlines deal was found by Cheapflights users on 6/24. 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.
Wed 11/42:31 pm
BOS
-
RAP
1 stop8h 46m
American Airlines
Tue 11/102:20 pm
RAP
-
BOS
1 stop6h 42m
American Airlines
Deal found 6/24$349
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/511:59 am
BOS
-
RAP
2 stops35h 17m
Multiple Airlines
Wed 8/129:51 am
RAP
-
BOS
1 stop21h 18m
Multiple Airlines
Deal found 6/22$354
This United Airlines deal was found by Cheapflights users on 6/22. 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 7/226:00 am
BOS
-
RAP
1 stop6h 24m
United Airlines
Wed 7/291:35 pm
RAP
-
BOS
1 stop7h 46m
United Airlines
Deal found 6/22$371
This Delta deal was found by Cheapflights users on 6/26. 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.
Mon 7/275:55 am
BOS
-
RAP
1 stop6h 23m
Delta
Wed 8/192:32 pm
RAP
-
BOS
1 stop5h 40m
Delta
Deal found 6/26$374
This United Airlines deal was found by Cheapflights users on 6/22. 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.
Tue 9/110:38 am
BOS
-
RAP
2 stops9h 20m
United Airlines
Fri 9/111:31 pm
RAP
-
BOS
1 stop6h 28m
United Airlines
Deal found 6/22$377
This American Airlines deal was found by Cheapflights users on 6/24. 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.
Thu 7/96:00 am
BOS
-
RAP
1 stop8h 11m
American Airlines
Wed 7/1512:41 pm
RAP
-
BOS
1 stop7h 36m
American Airlines
Deal found 6/24$384
This Sun Country Air deal was found by Cheapflights users on 6/22. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2311:55 am
BOS
-
RAP
1 stop28h 27m
Sun Country Air
Mon 7/276:33 pm
RAP
-
BOS
1 stop14h 05m
Sun Country Air
Deal found 6/22$385
This American Airlines deal was found by Cheapflights users on 6/24. 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.
Wed 8/126:14 am
BOS
-
RAP
1 stop10h 36m
American Airlines
Mon 8/173:21 pm
RAP
-
BOS
1 stop17h 11m
American Airlines
Deal found 6/24$398
This Delta deal was found by Cheapflights users on 6/26. 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.
Mon 7/275:55 am
BOS
-
RAP
1 stop6h 23m
Delta
Tue 8/182:32 pm
RAP
-
BOS
1 stop7h 26m
Delta
Deal found 6/26$399
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Fri 10/166:00 am
BOS
-
RAP
1 stop6h 15m
United Airlines
Tue 10/2011:17 am
RAP
-
BOS
1 stop8h 32m
United Airlines
Deal found 6/23$405
This American Airlines deal was found by Cheapflights users on 6/23. 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 8/249:19 am
BOS
-
RAP
1 stop9h 15m
American Airlines
Sun 8/303:21 pm
RAP
-
BOS
1 stop17h 11m
American Airlines
Deal found 6/23$408

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 June 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$349
(American Airlines)

One-way from

$173
(Sun Country Air)

Popular in

September

Cheapest in

April

Average price

$561
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. 4% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 27, 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 9/1

7:45 am-12:24 pm

1 stop6h 39m

Rapid City

Sun 9/6

5:00 am-4:27 pm

2 stops9h 27m

$429
Quickest round-trip

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sat 9/5

6:18 pm-10:37 pm

1 stop6h 19m

Rapid City

Sat 9/12

4:31 pm-11:59 pm

1 stop5h 28m

$434

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 8/12

5:51 am-10:02 am

1 stop6h 11m

Rapid City

Mon 8/17

2:32 pm-11:58 pm

1 stop7h 26m

$438

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Fri 7/31

10:35 am-6:16 pm

1 stop9h 41m

Rapid City

Mon 8/3

5:27 pm-10:38 am

1 stop15h 11m

$485

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Tue 8/25

11:00 am-5:58 pm

2 stops8h 58m

Rapid City

Mon 8/31

10:26 am-1:10 am

2 stops12h 44m

$494

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sat 8/8

8:20 pm-9:20 am

2 stops15h 00m

Rapid City

Wed 8/12

11:22 am-1:11 am

2 stops11h 49m

$553

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Fri 8/7

6:43 pm-11:16 pm

1 stop6h 33m

Rapid City

Wed 8/12

1:31 pm-9:59 pm

1 stop6h 28m

$562

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 8/12

11:00 am-10:26 am

3 stops25h 26m

Rapid City

Mon 8/17

1:31 pm-11:34 pm

1 stop8h 03m

$566

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sat 8/8

8:20 pm-10:24 am

1 stop16h 04m

Rapid City

Fri 8/14

1:31 pm-11:34 pm

1 stop8h 03m

$638

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Fri 9/4

9:33 am-8:37 pm

2 stops13h 04m

Rapid City

Wed 9/9

11:22 am-11:30 pm

2 stops10h 08m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Showing 1-10 of 15 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 June.
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?

The best time to book flights from Boston to Rapid City is 32 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, April is the cheapest month in which you can book a flight from Boston to Rapid City (average of $403). Flying from Boston to Rapid City in September is currently the most expensive (average of $636). 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 June 27, 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
7.8
Good
8,453 reviews

Food

7.2

Crew

8.5

Comfort

7.8

Overall

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
Delta
7.8
Good
8,453 reviews
Delta
7.8
Good
8,453 reviews

Food

7.2

Crew

8.5

Comfort

7.8

Overall

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
United Airlines
7.4
Good
9,893 reviews
Delta
7.8
Good
8,453 reviews

Food

7.2

Crew

8.5

Comfort

7.8

Overall

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
American Airlines
7.1
Good
11,769 reviews
Delta
7.8
Good
8,453 reviews

Food

7.2

Crew

8.5

Comfort

7.8

Overall

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

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 $434, United Airlines can have you in Rapid City from Boston in 6h 19m. 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 $308 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 41% 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. United Airlines flights start at $285 while deals on Delta 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, April is the cheapest month in which you can book a flight from Boston to Rapid City (average of $403). Flying from Boston to Rapid City in September is currently the most expensive (average of $636). 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

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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 June 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$543FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$335Average$587FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$378Average$519FlexibilityNo cancel feeOn-time69%

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