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Cheap flights from Boston to Rapid City from $174

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 10/15. 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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Find the cheapest flights from Boston to Rapid City

Cheap round-trip flights

Delta Logo
11:43 am - 3:45 pmBOS-RAP
6h 02m1 stop
Delta Logo
11:02 am - 7:40 pmRAP-BOS
6h 38m1 stop
$289Delta
Find Deal
Wed, Dec 10 - Sat, Dec 13
Delta Logo
6:45 am - 2:09 pmBOS-RAP
9h 24m2 stops
Delta Logo
11:02 am - 7:40 pmRAP-BOS
6h 38m1 stop
$294Delta
Find Deal
Wed, Dec 10 - Sat, Dec 13
Delta Logo
8:15 am - 3:45 pmBOS-RAP
9h 30m2 stops
Delta Logo
11:02 am - 1:21 amRAP-BOS
12h 19m2 stops
$299Delta
Find Deal
Wed, Dec 10 - Sat, Dec 13
United Airlines Logo
6:00 am - 12:37 pmBOS-RAP
8h 37m2 stops
United Airlines Logo
12:56 pm - 11:44 pmRAP-BOS
8h 48m1 stop
$338United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
6:00 am - 12:37 pmBOS-RAP
8h 37m2 stops
United Airlines Logo
12:56 pm - 11:59 pmRAP-BOS
9h 03m2 stops
$355United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
6:00 am - 10:13 amBOS-RAP
6h 13m1 stop
United Airlines Logo
12:56 pm - 12:50 amRAP-BOS
9h 54m2 stops
$374United Airlines
Find Deal
Sat, Oct 18 - Sat, Oct 25
American Airlines Logo
5:00 am - 12:42 pmBOS-RAP
9h 42m1 stop
American Airlines Logo
6:12 pm - 9:32 amRAP-BOS
13h 20m1 stop
$455American Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 5
American Airlines Logo
11:56 am - 9:16 pmBOS-RAP
11h 20m2 stops
American Airlines Logo
5:18 am - 5:22 pmRAP-BOS
10h 04m2 stops
$465American Airlines
Find Deal
Wed, Nov 5 - Mon, Nov 10
American Airlines Logo
8:35 am - 5:42 pmBOS-RAP
11h 07m1 stop
American Airlines Logo
6:12 pm - 9:32 amRAP-BOS
13h 20m1 stop
$480American Airlines
Find Deal
Sun, Sep 28 - Sun, Oct 5
American Airlines Logo
7:30 am - 4:03 pmBOS-RAP
10h 33m2 stops
American Airlines Logo
4:58 pm - 7:38 amRAP-BOS
12h 40m2 stops
$485American Airlines
Find Deal
Sat, Oct 18 - Sat, Oct 25

Delta flights from Boston to Rapid City

Our best Delta deals on Boston to Rapid City flight tickets
Delta
Dec 10
BOS11:43 amBoston Logan Intl
6h 02m
1 stop
RAP3:45 pmRapid City
Dec 13
RAP11:02 amRapid City
6h 38m
1 stop
BOS7:40 pmBoston Logan Intl
$289
Find similar
Delta
Dec 10
BOS6:45 amBoston Logan Intl
9h 24m
2 stops
RAP2:09 pmRapid City
Dec 13
RAP11:02 amRapid City
6h 38m
1 stop
BOS7:40 pmBoston Logan Intl
$294
Find similar
Delta
Dec 10
BOS8:15 amBoston Logan Intl
9h 30m
2 stops
RAP3:45 pmRapid City
Dec 13
RAP11:02 amRapid City
12h 19m
2 stops
BOS1:21 amBoston Logan Intl
$299
Find similar

United Airlines flights from Boston to Rapid City

Our best United Airlines deals on Boston to Rapid City flight tickets
United Airlines
Oct 14
BOS6:00 amBoston Logan Intl
8h 37m
2 stops
RAP12:37 pmRapid City
Oct 21
RAP12:56 pmRapid City
8h 48m
1 stop
BOS11:44 pmBoston Logan Intl
$338
Find similar
United Airlines
Oct 14
BOS6:00 amBoston Logan Intl
8h 37m
2 stops
RAP12:37 pmRapid City
Oct 21
RAP12:56 pmRapid City
9h 03m
2 stops
BOS11:59 pmBoston Logan Intl
$355
Find similar
United Airlines
Oct 18
BOS6:00 amBoston Logan Intl
6h 13m
1 stop
RAP10:13 amRapid City
Oct 25
RAP12:56 pmRapid City
9h 54m
2 stops
BOS12:50 amBoston Logan Intl
$374
Find similar

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 September 16, 2025.
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

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 12/10

11:43 am-3:45 pm

1 stop6h 02m

Rapid City

Sat 12/13

11:02 am-7:40 pm

1 stop6h 38m

$289

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 12/10

6:45 am-2:09 pm

2 stops9h 24m

Rapid City

Sat 12/13

11:02 am-7:40 pm

1 stop6h 38m

$294

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 12/10

8:15 am-3:45 pm

2 stops9h 30m

Rapid City

Sat 12/13

11:02 am-1:21 am

2 stops12h 19m

$299

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Tue 10/14

6:00 am-12:37 pm

2 stops8h 37m

Rapid City

Tue 10/21

12:56 pm-11:44 pm

1 stop8h 48m

$338

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Tue 10/14

6:00 am-12:37 pm

2 stops8h 37m

Rapid City

Tue 10/21

12:56 pm-11:59 pm

2 stops9h 03m

$355

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sat 10/18

6:00 am-10:13 am

1 stop6h 13m

Rapid City

Sat 10/25

12:56 pm-12:50 am

2 stops9h 54m

$374

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 10/1

5:00 am-12:42 pm

1 stop9h 42m

Rapid City

Sun 10/5

6:12 pm-9:32 am

1 stop13h 20m

$455

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 11/5

11:56 am-9:16 pm

2 stops11h 20m

Rapid City

Mon 11/10

5:18 am-5:22 pm

2 stops10h 04m

$465

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sun 9/28

8:35 am-5:42 pm

1 stop11h 07m

Rapid City

Sun 10/5

6:12 pm-9:32 am

1 stop13h 20m

$480

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sat 10/18

7:30 am-4:03 pm

2 stops10h 33m

Rapid City

Sat 10/25

4:58 pm-7:38 am

2 stops12h 40m

$485

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 December is, on average, the cheapest month to fly to Rapid City from Boston, with most prices found around $453. If you aren’t able to travel to Rapid City during the month of December, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $524.

What is the cheapest day to depart on your flight to Rapid City?

According to our data, Tuesday is the cheapest day to fly to Rapid City from Boston. The lowest ticket price found for a Tuesday departure recently was $628. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Rapid City is Sunday, with ticket prices averaging around $770.

What is the cheapest time of day to depart on your flight to Rapid City?

Our most recent data shows that the best time of day to fly to Rapid City is in the afternoon. Flights from Boston to Rapid City during this time can be as low as $617. Flights at noon are often more expensive with an average ticket price of $680.

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 $592 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 $453 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

Direct flights

None
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 02m, 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
7,957 reviews
Search Delta flights
United AirlinesPriceFrom $378Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
American AirlinesPriceFrom $385Free CancellationRating
7.2
10,000 reviews
Search American 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
Hot Springs
Wall
Hill City

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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