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Rapid City

$172+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — RAP
août 19 — août 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Rapid City are usually found in September or July, booked 47 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 août 14, 2025.

Round-trip from

$289
(Delta)

One-way from

$172
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$614
From Boston Logan Intl to Rapid City
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One-way flight from Boston Logan Intl to Rapid City
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Highest demand for flights based on searches. 9% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 août 14, 2025.

This Delta deal was found by Cheapflights users on 8/13. 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.
mer. 12/105:40 amBOS - RAP
1 stop6h 25mDelta
sam. 12/134:35 pmRAP - BOS
1 stop5h 20mDelta
Deal found 8/13$289
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/275:45 amBOS - RAP
1 stop6h 27mDelta
mer. 10/14:24 pmRAP - BOS
1 stop5h 35mDelta
Deal found 8/12$344
This American Airlines deal was found by Cheapflights users on 8/14. 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.
ven. 9/191:00 pmBOS - RAP
2 stops9h 53mAmerican Airlines
lun. 9/296:12 pmRAP - BOS
1 stop15h 48mAmerican Airlines
Deal found 8/14$346
This Delta deal was found by Cheapflights users on 8/13. 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.
mar. 9/305:40 amBOS - RAP
2 stops10h 06mDelta
mar. 10/72:26 pmRAP - BOS
1 stop7h 33mDelta
Deal found 8/13$349
This lol.travel deal was found by Cheapflights users on 8/14. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/45:05 pmBOS - RAP
1 stop6h 54mUnited Airlines
ven. 9/1212:43 pmRAP - BOS
1 stop9h 03mUnited Airlines
Deal found 8/14$362
This Delta deal was found by Cheapflights users on 8/13. 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.
mar. 9/308:10 amBOS - RAP
1 stop7h 36mDelta
mer. 10/82:26 pmRAP - BOS
1 stop7h 33mDelta
Deal found 8/13$368

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 août 14, 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

ven. 10/17

5:45 am-9:53 am

1 stop6h 08m

Rapid City

mar. 10/28

6:05 am-1:53 pm

1 stop5h 48m

$289

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

sam. 9/27

5:45 am-10:12 am

1 stop6h 27m

Rapid City

mer. 10/1

4:24 pm-11:59 pm

1 stop5h 35m

$344

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

mar. 9/30

7:05 am-1:46 pm

1 stop8h 41m

Rapid City

mar. 10/7

2:26 pm-11:59 pm

1 stop7h 33m

$344

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

ven. 9/19

1:00 pm-8:53 pm

2 stops9h 53m

Rapid City

lun. 9/29

6:12 pm-12:00 pm

1 stop15h 48m

$346

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

jeu. 9/4

5:05 pm-9:59 pm

1 stop6h 54m

Rapid City

ven. 9/12

12:43 pm-11:46 pm

1 stop9h 03m

$362

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

mar. 9/30

8:10 am-1:46 pm

1 stop7h 36m

Rapid City

mer. 10/8

2:26 pm-11:59 pm

1 stop7h 33m

$368

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

mer. 10/1

7:05 am-1:46 pm

1 stop8h 41m

Rapid City

mar. 10/7

2:26 pm-11:59 pm

1 stop7h 33m

$369

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

mar. 9/9

3:00 pm-4:49 pm

3 stops51h 49m

$172

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

sam. 9/27

3:00 pm-3:55 pm

3 stops26h 55m

$188

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

sam. 9/13

6:10 am-4:49 pm

3 stops36h 39m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 15 results
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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 August 8, 2025.

The best time to book flights from Boston to Rapid City is 47 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 $502). 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 août 14, 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.

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 août 14, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American 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
8.0
Very good
7,980 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

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
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

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
7,980 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

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 Delta. Our recent data shows that you can find tickets from as low as $288 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $378 and $400 round-trip. These flights start at 53% lower than the current average price 3 months from now.

  • 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 $502). 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
Deadwood
Keystone
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.
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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 août 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$288Average$602FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$378Average$636FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$400Average$585FlexibilityNo cancel feeOn-time71%

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