$389+ Cheap flights from Rapid City to Boston (RAP - BOS)
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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — BOS
Dec 8 — Dec 151
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Rapid City to Boston 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 Rapid City to Boston
Cheapest
Best
Last-minute
Cheapest flights from Rapid City to BostonExplore the most affordable flight options available from Rapid City to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 8, 2026.
Explore the most affordable flight options available from Rapid City to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 8, 2026.
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.
Thu 12/311:21 am -
1 stop5h 37m
Thu 12/107:25 am -
1 stop8h 35m
Deal found 11/5![Delta logo]()
$389
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.
Thu 12/312:18 pm -
2 stops9h 41m
Thu 12/104:45 pm -
1 stop6h 57m
Deal found 11/5![United Airlines logo]()
$394
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.
Wed 11/1812:39 pm -
1 stop9h 11m
Sun 11/226:00 am -
1 stop6h 31m
Deal found 11/5![United Airlines logo]()
$504
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.
Sun 12/2012:30 pm -
1 stop7h 29m
Mon 1/112:25 pm -
2 stops9h 13m
Deal found 11/5![United Airlines logo]()
$541
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.
Wed 11/112:23 pm -
1 stop7h 21m
Sun 11/155:45 am -
1 stop6h 38m
Deal found 11/5![Delta logo]()
$553
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.
Thu 11/1212:39 pm -
1 stop7h 15m
Mon 11/166:00 am -
1 stop6h 31m
Deal found 11/7![United Airlines logo]()
$584
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.
Wed 11/1111:12 am -
1 stop6h 27m
Sun 11/151:29 pm -
2 stops11h 01m
Deal found 11/5![United Airlines logo]()
$678
Best flights from Rapid City to BostonDiscover carefully curated flight deals from Rapid City to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 8, 2026.
Discover carefully curated flight deals from Rapid City to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 8, 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.
Thu 4/86:55 am -
1 stop7h 46m
Tue 4/136:00 pm -
1 stop6h 39m
Deal found 11/4![Delta logo]()
$389
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.
Tue 4/66:55 am -
1 stop5h 10m
Sat 4/106:00 pm -
1 stop6h 39m
Deal found 11/6![Delta logo]()
$389
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.
Tue 4/204:00 pm -
1 stop5h 53m
Sat 4/245:40 am -
1 stop7h 32m
Deal found 11/4![Delta logo]()
$389
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/24:00 pm -
1 stop5h 53m
Tue 4/66:00 pm -
1 stop6h 39m
Deal found 11/7![Delta logo]()
$389
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.
Fri 4/306:55 am -
1 stop7h 46m
Tue 5/46:00 pm -
1 stop6h 39m
Deal found 11/6![Delta logo]()
$389
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/234:00 pm -
1 stop5h 53m
Tue 4/276:00 pm -
1 stop6h 39m
Deal found 11/7![Delta logo]()
$424
Last-minute flights from Rapid City to BostonDiscover last-minute flight deals from Rapid City to Boston. Data last updated November 8, 2026 and is based on user searches.
Discover last-minute flight deals from Rapid City to Boston. Data last updated November 8, 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.
Wed 11/112:23 pm -
1 stop7h 21m
Sun 11/155:45 am -
1 stop6h 38m
Deal found 11/5![Delta 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.
Wed 11/1111:12 am -
1 stop6h 27m
Sun 11/151:29 pm -
2 stops11h 01m
Deal found 11/5![United Airlines logo]()
$678
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.
Thu 11/1212:39 pm -
1 stop7h 15m
Mon 11/166:00 am -
1 stop6h 31m
Deal found 11/7![United Airlines logo]()
$584
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.
Wed 11/1812:39 pm -
1 stop9h 11m
Sun 11/226:00 am -
1 stop6h 31m
Deal found 11/5![United Airlines logo]()
$504
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.
Thu 12/311:21 am -
1 stop5h 37m
Thu 12/107:25 am -
1 stop8h 35m
Deal found 11/5![Delta logo]()
$389
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.
Thu 12/312:18 pm -
2 stops9h 41m
Thu 12/104:45 pm -
1 stop6h 57m
Deal found 11/5![United Airlines logo]()
$394
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.
Sun 12/2012:30 pm -
1 stop7h 29m
Mon 1/112:25 pm -
2 stops9h 13m
Deal found 11/5![United Airlines logo]()
$541
Find flight deals from Rapid City to Boston
Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Boston (BOS). 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 8, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $389 (Delta) |
Cheapflights Fare Finder
Customize your flight search to find flights from Rapid City to Boston 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 8, 2026.
Use the filters below to find and compare flights from Rapid City to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Rapid CityBoston
RAP Rapid City - BOS Boston Logan Intl
RAPBOS
Rapid City
Thu 4/8
6:55 am-4:41 pm
1 stop7h 46m
Boston Logan Intl
Tue 4/13
6:00 pm-10:39 pm
1 stop6h 39m
$389
Quickest round-trip
Rapid CityBoston
RAP Rapid City - BOS Boston Logan Intl
RAPBOS
Rapid City
Tue 4/6
6:55 am-2:05 pm
1 stop5h 10m
Boston Logan Intl
Sat 4/10
6:00 pm-10:39 pm
1 stop6h 39m
$389
Rapid CityBoston
RAP Rapid City - BOS Boston Logan Intl
RAPBOS
Rapid City
Tue 4/20
4:00 pm-11:53 pm
1 stop5h 53m
Boston Logan Intl
Sat 4/24
5:40 am-11:12 am
1 stop7h 32m
$389
Rapid CityBoston
RAP Rapid City - BOS Boston Logan Intl
RAPBOS
Rapid City
Fri 4/2
4:00 pm-11:53 pm
1 stop5h 53m
Boston Logan Intl
Tue 4/6
6:00 pm-10:39 pm
1 stop6h 39m
$389
Rapid CityBoston
RAP Rapid City - BOS Boston Logan Intl
RAPBOS
Rapid City
Fri 4/30
6:55 am-4:41 pm
1 stop7h 46m
Boston Logan Intl
Tue 5/4
6:00 pm-10:39 pm
1 stop6h 39m
$389
Rapid CityBoston
RAP Rapid City - BOS Boston Logan Intl
RAPBOS
Rapid City
Fri 4/23
4:00 pm-11:53 pm
1 stop5h 53m
Boston Logan Intl
Tue 4/27
6:00 pm-10:39 pm
1 stop6h 39m
$424
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Rapid City-Boston flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Rapid City-Boston flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Rapid City-Boston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Rapid City-Boston flights, Cheapflights users trust Expedia the most. Expedia 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 Rapid City-Boston 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 Rapid City to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Rapid City with our price prediction graph.
RAP-BOS
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.
Reviews of airlines servicing Boston
Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated November 8, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from Rapid City to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Overall
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Overall
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Overall
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Related info for your journey
Find useful and relevant information for your journey from Rapid City to Boston. 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 Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Concord
Cambridge
Brockton
Dedham
Cranston
Warwick
Pawtucket
Peabody
Revere
Fitchburg
Londonderry
York Beach
North Falmouth
Chelsea
Swansea
Braintree
Auburn
Sandwich
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
Boston flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Rapid City
Popular flights
Alternative routes for Rapid City to Boston
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Boston
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 8, 2026.
Complete your trip
Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Rapid City to Boston by cabin class
Find flights from Rapid City to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Rapid City and Boston flights
Browse other Rapid City and Boston flight options. Last updated on November 8, 2026.
Other flights from Rapid City
Browse through other flights departing from Rapid City. Flights are based on user searches made on Cheapflights and were last updated on November 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Rapid City to Boston
Discover the top 3 airlines that operate flights from Rapid City to Boston. 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 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$565 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$308 | Average$462 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$348 | Average$456 | FlexibilityNo cancel fee | On-time69% |