$200+ 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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — RAP
Jun 8 — Jun 151
Round-trip
1 adult, Economy
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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
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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
Best
Last-minute
One-way
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 May 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 May 9, 2026.
This United Airlines deal was found by Cheapflights users on 5/5. 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.
Wed 11/43:19 pm
BOS
- RAP
1 stop7h 14m
United Airlines
Tue 11/1011:25 am
RAP
- BOS
1 stop8h 17m
United Airlines
Deal found 5/5![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 5/5. 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.
Wed 11/46:00 pm
BOS
- RAP
1 stop6h 39m
Delta
Tue 11/1011:30 am
RAP
- BOS
2 stops8h 51m
Delta
Deal found 5/5![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 5/8. 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 10/115:40 am
BOS
- RAP
1 stop7h 32m
Delta
Sun 10/184:00 pm
RAP
- BOS
1 stop5h 53m
Delta
Deal found 5/8![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:55 am
BOS
- RAP
1 stop6h 20m
Delta
Tue 6/306:48 am
RAP
- BOS
2 stops9h 42m
Delta
Deal found 5/7![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 5/6. 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.
Fri 7/107:10 am
BOS
- RAP
1 stop8h 30m
Delta
Wed 7/154:15 pm
RAP
- BOS
1 stop5h 40m
Delta
Deal found 5/6![Delta logo]()
$374
This United Airlines deal was found by Cheapflights users on 5/5. 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.
Thu 8/66:00 am
BOS
- RAP
1 stop6h 24m
United Airlines
Thu 8/131:33 pm
RAP
- BOS
1 stop6h 22m
United Airlines
Deal found 5/5![United Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 5/5. 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.
Thu 5/286:16 pm
BOS
- RAP
1 stop6h 08m
Delta
Wed 6/32:36 pm
RAP
- BOS
1 stop7h 18m
Delta
Deal found 5/5![Delta logo]()
$384
This Delta deal was found by Cheapflights users on 5/6. 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 5/236:16 pm
BOS
- RAP
1 stop6h 08m
Delta
Wed 5/2711:13 am
RAP
- BOS
2 stops9h 38m
Delta
Deal found 5/6![Delta logo]()
$389
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Sun 5/2412:32 pm
BOS
- RAP
2 stops11h 01m
American Airlines
Wed 6/33:23 pm
RAP
- BOS
1 stop6h 36m
American Airlines
Deal found 5/8![American Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 5/6. 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.
Wed 5/277:45 am
BOS
- RAP
1 stop6h 44m
United Airlines
Sat 5/301:35 pm
RAP
- BOS
1 stop7h 46m
United Airlines
Deal found 5/6![United Airlines logo]()
$400
This American Airlines deal was found by Cheapflights users on 5/8. 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 8/206:10 am
BOS
- RAP
1 stop10h 41m
American Airlines
Sat 8/2912:19 pm
RAP
- BOS
1 stop6h 41m
American Airlines
Deal found 5/8![American Airlines logo]()
$403
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 May 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 May 9, 2026.
This Delta deal was found by Cheapflights users on 5/5. 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.
Wed 11/46:00 pm
BOS
- RAP
1 stop6h 39m
Delta
Tue 11/1011:30 am
RAP
- BOS
2 stops8h 51m
Delta
Deal found 5/5![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 5/8. 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 7/46:00 am
BOS
- RAP
1 stop6h 24m
United Airlines
Wed 7/81:35 pm
RAP
- BOS
1 stop6h 21m
United Airlines
Deal found 5/8![United Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Fri 7/106:00 am
BOS
- RAP
1 stop8h 11m
American Airlines
Sat 7/1812:41 pm
RAP
- BOS
2 stops9h 24m
American Airlines
Deal found 5/8![American Airlines logo]()
$522
This Delta deal was found by Cheapflights users on 5/5. 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.
Thu 5/286:16 pm
BOS
- RAP
1 stop6h 08m
Delta
Wed 6/32:36 pm
RAP
- BOS
1 stop7h 18m
Delta
Deal found 5/5![Delta logo]()
$384
This Delta deal was found by Cheapflights users on 5/4. 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.
Tue 6/235:55 am
BOS
- RAP
1 stop6h 20m
Delta
Tue 6/3012:30 pm
RAP
- BOS
1 stop6h 35m
Delta
Deal found 5/4![Delta logo]()
$405
This United Airlines deal was found by Cheapflights users on 5/8. 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 7/106:43 pm
BOS
- RAP
1 stop6h 33m
United Airlines
Sat 7/181:35 pm
RAP
- BOS
1 stop7h 46m
United Airlines
Deal found 5/8![United Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 5/5. 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.
Thu 7/96:43 pm
BOS
- RAP
1 stop6h 33m
United Airlines
Sat 7/181:35 pm
RAP
- BOS
1 stop7h 46m
United Airlines
Deal found 5/5![United Airlines logo]()
$488
This Delta deal was found by Cheapflights users on 5/4. 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.
Fri 7/107:10 am
BOS
- RAP
1 stop8h 30m
Delta
Sat 7/186:48 am
RAP
- BOS
1 stop8h 02m
Delta
Deal found 5/4![Delta logo]()
$464
This Delta deal was found by Cheapflights users on 5/4. 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 7/115:55 pm
BOS
- RAP
1 stop6h 31m
Delta
Sat 7/186:48 am
RAP
- BOS
1 stop8h 02m
Delta
Deal found 5/4![Delta logo]()
$489
This Delta deal was found by Cheapflights users on 5/6. 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.
Sun 5/245:51 am
BOS
- RAP
1 stop6h 41m
Delta
Wed 5/272:36 pm
RAP
- BOS
1 stop7h 18m
Delta
Deal found 5/6![Delta logo]()
$513
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/315:51 am
BOS
- RAP
1 stop6h 42m
Delta
Fri 6/52:36 pm
RAP
- BOS
1 stop7h 18m
Delta
Deal found 5/7![Delta logo]()
$521
Last-minute flights from Boston to Rapid CityDiscover last-minute flight deals from Boston to Rapid City. Data last updated May 9, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Rapid City. Data last updated May 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/6. 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 5/236:16 pm
BOS
- RAP
1 stop6h 08m
Delta
Wed 5/2711:13 am
RAP
- BOS
2 stops9h 38m
Delta
Deal found 5/6![Delta logo]()
$389
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Sun 5/2412:32 pm
BOS
- RAP
2 stops11h 01m
American Airlines
Wed 6/33:23 pm
RAP
- BOS
1 stop6h 36m
American Airlines
Deal found 5/8![American Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 5/6. 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.
Wed 5/277:45 am
BOS
- RAP
1 stop6h 44m
United Airlines
Sat 5/301:35 pm
RAP
- BOS
1 stop7h 46m
United Airlines
Deal found 5/6![United Airlines logo]()
$400
This Delta deal was found by Cheapflights users on 5/5. 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.
Thu 5/286:16 pm
BOS
- RAP
1 stop6h 08m
Delta
Wed 6/311:13 am
RAP
- BOS
2 stops10h 16m
Delta
Deal found 5/5![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 5/5. 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.
Thu 6/45:51 am
BOS
- RAP
1 stop6h 42m
Delta
Thu 6/114:29 pm
RAP
- BOS
1 stop5h 28m
Delta
Deal found 5/5![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:55 am
BOS
- RAP
1 stop6h 20m
Delta
Tue 6/306:48 am
RAP
- BOS
2 stops9h 42m
Delta
Deal found 5/7![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:50 pm
BOS
- RAP
1 stop6h 47m
Delta
Mon 6/2912:30 pm
RAP
- BOS
1 stop6h 35m
Delta
Deal found 5/7![Delta logo]()
$419
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 May 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 May 9, 2026.
This Delta deal was found by Cheapflights users on 5/6. 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.
Tue 7/75:55 am
BOS
- RAP
1 stop6h 23m
Delta
Deal found 5/6![Delta logo]()
$200
This Delta deal was found by Cheapflights users on 5/5. 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.
Wed 8/52:22 pm
BOS
- RAP
2 stops10h 15m
Delta
Deal found 5/5![Delta logo]()
$205
This Delta deal was found by Cheapflights users on 5/5. 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.
Sun 7/55:55 am
BOS
- RAP
1 stop6h 20m
Delta
Deal found 5/5![Delta logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:40 am
BOS
- RAP
2 stops23h 10m
Allegiant Air
Deal found 5/7![Allegiant Air logo]()
$247
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Sun 7/56:00 am
BOS
- RAP
1 stop8h 19m
American Airlines
Deal found 5/8![American Airlines logo]()
$248
This deal was found by Cheapflights users on 5/4. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:00 am
BOS
- RAP
1 stop6h 24m
United Airlines
Deal found 5/4![United Airlines logo]()
$250
This Delta deal was found by Cheapflights users on 5/8. 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 5/275:51 am
BOS
- RAP
1 stop6h 42m
Delta
Deal found 5/8![Delta logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Sat 5/2312:01 pm
BOS
- RAP
3 stops27h 38m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$291
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 May 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (American Airlines) |
One-way from | $200 (Delta) |
Popular in | May |
Cheapest in | February |
Average price | $580 |
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 May 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 - RAP
BOSRAP
Boston Logan Intl
Wed 11/4
6:00 pm-10:39 pm
1 stop6h 39m
Rapid City
Tue 11/10
11:30 am-10:21 pm
2 stops8h 51m
$354
BostonRapid City
BOS - RAP
BOSRAP
Boston Logan Intl
Thu 5/28
6:16 pm-10:24 pm
1 stop6h 08m
Rapid City
Wed 6/3
2:36 pm-11:54 pm
1 stop7h 18m
$384
Quickest round-trip
BostonRapid City
BOS - RAP
BOSRAP
Boston Logan Intl
Sat 7/4
6:00 am-10:24 am
1 stop6h 24m
Rapid City
Wed 7/8
1:35 pm-9:56 pm
1 stop6h 21m
$389
BostonRapid City
BOS - RAP
BOSRAP
Boston Logan Intl
Tue 6/23
5:55 am-10:15 am
1 stop6h 20m
Rapid City
Tue 6/30
12:30 pm-9:05 pm
1 stop6h 35m
$405
BostonRapid City
BOS - RAP
BOSRAP
Boston Logan Intl
Fri 7/10
6:43 pm-11:16 pm
1 stop6h 33m
Rapid City
Sat 7/18
1:35 pm-11:21 pm
1 stop7h 46m
$458
BostonRapid City
BOS - RAP
BOSRAP
Boston Logan Intl
Fri 7/10
7:10 am-1:40 pm
1 stop8h 30m
Rapid City
Sat 7/18
6:48 am-4:50 pm
1 stop8h 02m
$464
BostonRapid City
BOS - RAP
BOSRAP
Boston Logan Intl
Thu 7/9
6:43 pm-11:16 pm
1 stop6h 33m
Rapid City
Sat 7/18
1:35 pm-11:21 pm
1 stop7h 46m
$488
BostonRapid City
BOS - RAP
BOSRAP
Boston Logan Intl
Sat 7/11
5:55 pm-10:26 pm
1 stop6h 31m
Rapid City
Sat 7/18
6:48 am-4:50 pm
1 stop8h 02m
$489
BostonRapid City
BOS - RAP
BOSRAP
Boston Logan Intl
Sun 5/24
5:51 am-10:32 am
1 stop6h 41m
Rapid City
Wed 5/27
2:36 pm-11:54 pm
1 stop7h 18m
$513
BostonRapid City
BOS - RAP
BOSRAP
Boston Logan Intl
Sun 5/31
5:51 am-10:33 am
1 stop6h 42m
Rapid City
Fri 6/5
2:36 pm-11:54 pm
1 stop7h 18m
$521
Showing 1-10 of 19 resultsSorted 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 May.
| 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 56 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, February is the cheapest month in which you can book a flight from Boston to Rapid City (average of $450). Flying from Boston to Rapid City in May is currently the most expensive (average of $580). 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 May 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.
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Overall
7.9
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Overall
7.9
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Overall
7.9
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Overall
7.9
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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Book flights to Rapid City if you plan to visit one of these locationsKeystone
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Top 3 airlines flying from Boston to Rapid City
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$522 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$368 | Average$541 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$378 | Average$520 | FlexibilityNo cancel fee | On-time69% |