$434+ Cheap flights from Boston to Rapid City (BOS - RAP)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — RAP
Dec 9 — Dec 161
Round-trip
1 adult, Economy
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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
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Cheapest flights from Boston to Rapid CityExplore 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 November 9, 2026.
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 November 9, 2026.
This Delta deal was found by Cheapflights users on 11/4. 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 11/216:15 pm -
1 stop6h 26m
Tue 12/12:40 pm -
1 stop7h 07m
Deal found 11/4![Delta logo]()
$434
This United Airlines deal was found by Cheapflights users on 11/6. 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 11/206:00 am -
1 stop6h 31m
Mon 11/2312:39 pm -
1 stop9h 11m
Deal found 11/6![United Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 11/4. 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 11/225:45 am -
1 stop6h 38m
Tue 12/14:36 pm -
1 stop5h 11m
Deal found 11/4![Delta logo]()
$464
This Delta deal was found by Cheapflights users on 11/4. 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 11/235:45 am -
1 stop6h 38m
Tue 12/12:40 pm -
1 stop7h 07m
Deal found 11/4![Delta logo]()
$489
This Delta deal was found by Cheapflights users on 11/4. 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.
Wed 11/46:15 pm -
1 stop6h 15m
Tue 11/102:23 pm -
1 stop7h 21m
Deal found 11/4![Delta logo]()
$547
This Delta deal was found by Cheapflights users on 11/5. 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 11/135:45 am -
1 stop6h 38m
Wed 11/182:23 pm -
1 stop7h 21m
Deal found 11/5![Delta logo]()
$549
This United Airlines deal was found by Cheapflights users on 11/6. 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 11/76:00 am -
1 stop6h 31m
Sat 11/141:30 pm -
1 stop6h 00m
Deal found 11/6![United Airlines logo]()
$553
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/139:30 am -
2 stops9h 39m
Wed 11/187:00 am -
1 stop6h 35m
Deal found 11/5![United Airlines logo]()
$554
This United Airlines deal was found by Cheapflights users on 11/7. 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.
Sun 11/226:00 am -
1 stop6h 31m
Thu 11/267:00 am -
2 stops9h 57m
Deal found 11/7![United Airlines logo]()
$574
This Delta deal was found by Cheapflights users on 11/5. 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 11/66:15 pm -
1 stop6h 15m
Thu 11/126:45 am -
1 stop5h 09m
Deal found 11/5![Delta logo]()
$584
Best flights from Boston to Rapid CityDiscover carefully curated flight deals from Boston to Rapid City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.
Discover carefully curated flight deals from Boston to Rapid City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.
This Delta deal was found by Cheapflights users on 11/4. 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 11/216:15 pm -
1 stop6h 26m
Tue 12/12:40 pm -
1 stop7h 07m
Deal found 11/4![Delta logo]()
$434
This United Airlines deal was found by Cheapflights users on 11/7. 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 2/59:20 am -
1 stop9h 58m
Tue 2/98:30 am -
1 stop9h 20m
Deal found 11/7![United Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 11/4. 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 1/2311:37 am -
1 stop9h 24m
Wed 1/277:00 am -
1 stop6h 39m
Deal found 11/4![United Airlines logo]()
$509
This Delta deal was found by Cheapflights users on 11/5. 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 11/135:45 am -
1 stop6h 38m
Wed 11/182:23 pm -
1 stop7h 21m
Deal found 11/5![Delta logo]()
$549
This United Airlines deal was found by Cheapflights users on 11/6. 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 11/201:29 pm -
2 stops9h 19m
Mon 11/231:30 pm -
1 stop6h 00m
Deal found 11/6![United Airlines logo]()
$522
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/139:30 am -
2 stops9h 39m
Wed 11/187:00 am -
1 stop6h 35m
Deal found 11/5![United Airlines logo]()
$554
Last-minute flights from Boston to Rapid CityDiscover last-minute flight deals from Boston to Rapid City. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Rapid City. Data last updated November 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 11/5. 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 11/66:15 pm -
1 stop6h 15m
Thu 11/126:45 am -
1 stop5h 09m
Deal found 11/5![Delta logo]()
$584
This United Airlines deal was found by Cheapflights users on 11/6. 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 11/76:00 am -
1 stop6h 31m
Sat 11/141:30 pm -
1 stop6h 00m
Deal found 11/6![United Airlines logo]()
$553
This Delta deal was found by Cheapflights users on 11/5. 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 11/135:45 am -
1 stop6h 38m
Wed 11/182:23 pm -
1 stop7h 21m
Deal found 11/5![Delta logo]()
$549
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/139:30 am -
2 stops9h 39m
Wed 11/187:00 am -
1 stop6h 35m
Deal found 11/5![United Airlines logo]()
$554
This United Airlines deal was found by Cheapflights users on 11/6. 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 11/206:00 am -
1 stop6h 31m
Mon 11/2312:39 pm -
1 stop9h 11m
Deal found 11/6![United Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 11/4. 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 11/216:15 pm -
1 stop6h 26m
Tue 12/12:40 pm -
1 stop7h 07m
Deal found 11/4![Delta logo]()
$434
This Delta deal was found by Cheapflights users on 11/4. 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 11/225:45 am -
1 stop6h 38m
Tue 12/14:36 pm -
1 stop5h 11m
Deal found 11/4![Delta logo]()
$464
This United Airlines deal was found by Cheapflights users on 11/7. 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.
Sun 11/226:00 am -
1 stop6h 31m
Thu 11/267:00 am -
2 stops9h 57m
Deal found 11/7![United Airlines logo]()
$574
This Delta deal was found by Cheapflights users on 11/4. 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 11/235:45 am -
1 stop6h 38m
Tue 12/12:40 pm -
1 stop7h 07m
Deal found 11/4![Delta logo]()
$489
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Mon 11/239:00 am -
2 stops10h 09m
Tue 12/16:00 am -
1 stop5h 54m
Deal found 11/4![United Airlines logo]()
$608
One-way flights from Boston to Rapid CitySearch for one-way flight options from Boston to Rapid City. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
Search for one-way flight options from Boston to Rapid City. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
This United Airlines deal was found by Cheapflights users on 11/4. 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 12/196:38 pm -
2 stops16h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![United Airlines logo]()
$471
This Delta deal was found by Cheapflights users on 11/6. 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 12/195:30 am -
1 stop7h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Delta logo]()
$484
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 November 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $434 (Delta) |
Popular in | December |
Cheapest in | April |
Average price | $493 |
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 7,457,451 searches. Data last updated November 9, 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
Cheapest round-trip
BostonRapid City
BOS Boston Logan Intl - RAP Rapid City
BOSRAP
Boston Logan Intl
Sat 11/21
6:15 pm-10:41 pm
1 stop6h 26m
Rapid City
Tue 12/1
2:40 pm-11:47 pm
1 stop7h 07m
$434
BostonRapid City
BOS Boston Logan Intl - RAP Rapid City
BOSRAP
Boston Logan Intl
Sat 12/19
5:25 pm-9:09 am
2 stops17h 44m
Rapid City
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$471
Quickest round-trip
BostonRapid City
BOS Boston Logan Intl - RAP Rapid City
BOSRAP
Boston Logan Intl
Sat 12/19
5:30 am-11:19 am
1 stop7h 49m
Rapid City
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$484
BostonRapid City
BOS Boston Logan Intl - RAP Rapid City
BOSRAP
Boston Logan Intl
Fri 2/5
9:20 am-5:18 pm
1 stop9h 58m
Rapid City
Tue 2/9
8:30 am-7:50 pm
1 stop9h 20m
$509
BostonRapid City
BOS Boston Logan Intl - RAP Rapid City
BOSRAP
Boston Logan Intl
Sat 1/23
11:37 am-7:01 pm
1 stop9h 24m
Rapid City
Wed 1/27
7:00 am-3:39 pm
1 stop6h 39m
$509
BostonRapid City
BOS Boston Logan Intl - RAP Rapid City
BOSRAP
Boston Logan Intl
Fri 11/20
1:29 pm-8:48 pm
2 stops9h 19m
Rapid City
Mon 11/23
1:30 pm-9:30 pm
1 stop6h 00m
$522
BostonRapid City
BOS Boston Logan Intl - RAP Rapid City
BOSRAP
Boston Logan Intl
Fri 11/13
5:45 am-10:23 am
1 stop6h 38m
Rapid City
Wed 11/18
2:23 pm-11:44 pm
1 stop7h 21m
$549
BostonRapid City
BOS Boston Logan Intl - RAP Rapid City
BOSRAP
Boston Logan Intl
Fri 11/13
9:30 am-5:09 pm
2 stops9h 39m
Rapid City
Wed 11/18
7:00 am-3:35 pm
1 stop6h 35m
$554
Sorted by cheapest first
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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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.
BOS-RAP
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 63 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 December is currently the most expensive (average of $858). 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?
Airfare is below average for this route at the moment.
Boston to Rapid City flights typically cost between $448 and $518 in November.The cheapest round-trip price found within the last 5 days was $434 on Delta (Nov 21-Dec 1).
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 November 9, 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.
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodCidalia,Aug 2023
BOS - MIA
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.
Traveling to a place near Rapid City?
Book flights to Rapid City if you plan to visit one of these locationsDeadwood
Spearfish
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Boston and Rapid City flights
Browse other Boston and Rapid City flight options. Last updated on November 9, 2026.
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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 7,457,451 searches. Data last updated November 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$328 | Average$519 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$373 | Average$586 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$387 | Average$548 | FlexibilityNo cancel fee | On-time69% |