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Cheap flights from Boston to Rapid City from $221

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Rapid City departing on 4/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Boston to Rapid City

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:30 am - 11:23 am
BOS
-
RAP
6h 53m
1 stop
American Airlines Logo
11:53 am - 10:28 pm
RAP
-
BOS
8h 35m
1 stop
$347American Airlines
Mon, Apr 27 - Mon, May 4
American Airlines Logo
6:30 am - 11:23 am
BOS
-
RAP
6h 53m
1 stop
American Airlines Logo
11:53 am - 9:12 pm
RAP
-
BOS
7h 19m
1 stop
$349American Airlines
Wed, Apr 15 - Wed, Apr 22
United Airlines Logo
6:00 am - 10:36 am
BOS
-
RAP
6h 36m
1 stop
United Airlines Logo
11:40 am - 11:59 pm
RAP
-
BOS
10h 19m
2 stops
$354United Airlines
Thu, Apr 9 - Thu, Apr 16
Delta Logo
5:40 am - 9:58 am
BOS
-
RAP
6h 18m
1 stop
Delta Logo
2:25 pm - 10:20 pm
RAP
-
BOS
5h 55m
1 stop
$369Delta
Fri, Aug 14 - Thu, Aug 20
United Airlines Logo
4:50 pm - 10:28 pm
BOS
-
RAP
7h 38m
1 stop
United Airlines Logo
10:55 am - 9:59 pm
RAP
-
BOS
9h 04m
2 stops
$374United Airlines
Sat, Apr 11 - Sat, Apr 18
United Airlines Logo
7:09 am - 1:08 pm
BOS
-
RAP
7h 59m
1 stop
United Airlines Logo
12:00 pm - 9:59 pm
RAP
-
BOS
7h 59m
1 stop
$382United Airlines
Thu, Apr 9 - Thu, Apr 16
Delta Logo
5:50 am - 10:20 am
BOS
-
RAP
6h 30m
1 stop
Delta Logo
11:03 am - 7:34 pm
RAP
-
BOS
6h 31m
1 stop
$394Delta
Thu, Apr 2 - Tue, Apr 7
Delta Logo
5:50 am - 10:20 am
BOS
-
RAP
6h 30m
1 stop
Delta Logo
6:00 am - 7:46 pm
RAP
-
BOS
11h 46m
2 stops
$399Delta
Thu, Apr 2 - Tue, Apr 7
American Airlines Logo
5:29 am - 5:40 pm
BOS
-
RAP
14h 11m
1 stop
American Airlines Logo
6:10 pm - 9:32 am
RAP
-
BOS
13h 22m
1 stop
$405American Airlines
Wed, Aug 5 - Tue, Aug 11
Delta Logo
11:15 am - 10:25 pm
BOS
-
RAP
13h 10m
2 stops
Delta Logo
6:00 am - 7:46 pm
RAP
-
BOS
11h 46m
2 stops
$409Delta
Fri, Mar 27 - Tue, Mar 31

United Airlines flights from Boston to Rapid City

Our best United Airlines deals on Boston to Rapid City flight tickets
United Airlines
Apr 9
BOS6:00 amBoston Logan Intl
6h 36m
1 stop
RAP10:36 amRapid City
Apr 16
RAP11:40 amRapid City
10h 19m
2 stops
BOS11:59 pmBoston Logan Intl
$354
United Airlines
Apr 11
BOS4:50 pmBoston Logan Intl
7h 38m
1 stop
RAP10:28 pmRapid City
Apr 18
RAP10:55 amRapid City
9h 04m
2 stops
BOS9:59 pmBoston Logan Intl
$374
United Airlines
Apr 9
BOS7:09 amBoston Logan Intl
7h 59m
1 stop
RAP1:08 pmRapid City
Apr 16
RAP12:00 pmRapid City
7h 59m
1 stop
BOS9:59 pmBoston Logan Intl
$382

Delta flights from Boston to Rapid City

Our best Delta deals on Boston to Rapid City flight tickets
Delta
Aug 14
BOS5:40 amBoston Logan Intl
6h 18m
1 stop
RAP9:58 amRapid City
Aug 20
RAP2:25 pmRapid City
5h 55m
1 stop
BOS10:20 pmBoston Logan Intl
$369
Delta
Apr 2
BOS5:50 amBoston Logan Intl
6h 30m
1 stop
RAP10:20 amRapid City
Apr 7
RAP11:03 amRapid City
6h 31m
1 stop
BOS7:34 pmBoston Logan Intl
$394
Delta
Apr 2
BOS5:50 amBoston Logan Intl
6h 30m
1 stop
RAP10:20 amRapid City
Apr 7
RAP6:00 amRapid City
11h 46m
2 stops
BOS7:46 pmBoston Logan Intl
$399

momondo 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, momondo users made 832,500 searches. Data last updated March 17, 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

Mon 4/27

6:30 am-11:23 am

1 stop6h 53m

Rapid City

Mon 5/4

11:53 am-10:28 pm

1 stop8h 35m

$347

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 4/15

6:30 am-11:23 am

1 stop6h 53m

Rapid City

Wed 4/22

11:53 am-9:12 pm

1 stop7h 19m

$349

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Thu 4/9

6:00 am-10:36 am

1 stop6h 36m

Rapid City

Thu 4/16

11:40 am-11:59 pm

2 stops10h 19m

$354
Quickest round-trip

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Fri 8/14

5:40 am-9:58 am

1 stop6h 18m

Rapid City

Thu 8/20

2:25 pm-10:20 pm

1 stop5h 55m

$369

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sat 4/11

4:50 pm-10:28 pm

1 stop7h 38m

Rapid City

Sat 4/18

10:55 am-9:59 pm

2 stops9h 04m

$374

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Thu 4/9

7:09 am-1:08 pm

1 stop7h 59m

Rapid City

Thu 4/16

12:00 pm-9:59 pm

1 stop7h 59m

$382

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Thu 4/2

5:50 am-10:20 am

1 stop6h 30m

Rapid City

Tue 4/7

11:03 am-7:34 pm

1 stop6h 31m

$394

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Thu 4/2

5:50 am-10:20 am

1 stop6h 30m

Rapid City

Tue 4/7

6:00 am-7:46 pm

2 stops11h 46m

$399

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 8/5

5:29 am-5:40 pm

1 stop14h 11m

Rapid City

Tue 8/11

6:10 pm-9:32 am

1 stop13h 22m

$405

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Fri 3/27

11:15 am-10:25 pm

2 stops13h 10m

Rapid City

Tue 3/31

6:00 am-7:46 pm

2 stops11h 46m

$409

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Rapid City from

How to get the cheapest flight ticket from Boston to Rapid City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Rapid City?

The month of February is, on average, the cheapest month to fly to Rapid City from Boston, with most prices found around $426. If you aren’t able to travel to Rapid City during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $473.

How far in advance should I book a flight to Rapid City?

You are more likely to see cheaper flights to Rapid City from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Rapid City for around $520 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rapid City from Boston for as low as $408 on momondo.

When to book flights from Boston to Rapid City

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Rapid City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Rapid City (BOS to RAP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Rapid City

Fastest flight time

6h 07m

Direct flights

None
The fastest flight from Boston to Rapid City takes 6h 07m
There are no direct flights from Boston to Rapid City. There are no popular flight routes from Boston to Rapid City.
Search flight deals

  • How far is Boston Logan Intl to Rapid City by plane?

    There are 1612.8 mi between Boston Logan Intl and Rapid City. Flights usually cover this in 6h 07m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Rapid City Airport?

    Prices for flights from Boston Logan Intl Airport to Rapid City Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Rapid City Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Rapid City Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Rapid City Airport.

  • What documentation or ID do you need to fly to Rapid City Airport?

    The travel and health documents required for your trip to Rapid City Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Rapid City Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Boston to Rapid City?

Best airlines flying from Boston to Rapid City

Compare and see reviews for airlines that fly from Boston to Rapid City with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $288Free CancellationRating
7.9
8,288 reviews
Search Delta flights
American AirlinesPriceFrom $335Free CancellationRating
7.1
11,468 reviews
Search American Airlines flights
United AirlinesPriceFrom $378Free CancellationRating
7.4
9,431 reviews
Search United Airlines flights

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
Custer
Hill City
Hot Springs
Wall

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Rapid City?

Finding the right flight to Rapid City from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Rapid City quick and easy, saving you time and money.

Can I find flights from Boston to Rapid City with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Rapid City from Boston with this policy.

How can momondo help me find flights from Boston to Rapid City?

momondo provides multiple filters to help you find the best flight to Rapid City from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boston to Rapid City right now. Can momondo alert me if prices change?

Price alerts on flights to Rapid City from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Rapid City trip

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