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Cheap flights from Boston to Rapid City from $203

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 9/8. 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

Delta Logo
6:00 pm - 10:14 pmBOS-RAP
6h 14m1 stop
Delta Logo
10:40 am - 7:11 pmRAP-BOS
6h 31m1 stop
$289Delta
Find Deal
Mon, Jan 26 - Tue, Feb 3
Delta Logo
4:00 pm - 10:14 pmBOS-RAP
8h 14m2 stops
Delta Logo
4:00 pm - 11:59 pmRAP-BOS
5h 59m1 stop
$294Delta
Find Deal
Mon, Jan 26 - Fri, Feb 6
Delta Logo
4:00 pm - 10:14 pmBOS-RAP
8h 14m2 stops
Delta Logo
10:40 am - 11:38 pmRAP-BOS
10h 58m2 stops
$299Delta
Find Deal
Mon, Jan 26 - Fri, Feb 6
United Airlines Logo
6:07 am - 10:20 amBOS-RAP
6h 13m1 stop
United Airlines Logo
6:30 am - 4:43 pmRAP-BOS
8h 13m1 stop
$314United Airlines
Find Deal
Tue, Aug 12 - Tue, Aug 19
United Airlines Logo
6:07 am - 10:20 amBOS-RAP
6h 13m1 stop
United Airlines Logo
6:30 am - 5:34 pmRAP-BOS
9h 04m2 stops
$319United Airlines
Find Deal
Tue, Aug 12 - Tue, Aug 19
Delta Logo
9:00 am - 3:50 pmBOS-RAP
8h 50m2 stops
Delta Logo
10:40 am - 1:00 amRAP-BOS
12h 20m2 stops
$324Delta
Find Deal
Sat, Oct 18 - Sat, Nov 15
American Airlines Logo
5:00 am - 5:42 pmBOS-RAP
14h 42m1 stop
American Airlines Logo
6:12 pm - 9:32 amRAP-BOS
13h 20m1 stop
$365American Airlines
Find Deal
Sun, Sep 14 - Sun, Sep 21
Logo
6:30 am - 4:33 pmBOS-RAP
12h 03m1 stop
Logo
10:00 pm - 10:34 pmRAP-BOS
22h 34m2 stops
$383
Find Deal
Mon, Aug 11 - Thu, Aug 14
American Airlines Logo
8:00 am - 4:05 pmBOS-RAP
10h 05m2 stops
American Airlines Logo
5:46 am - 5:00 pmRAP-BOS
9h 14m1 stop
$384American Airlines
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Wed, Dec 10 - Sat, Dec 13
Logo
6:30 am - 4:33 pmBOS-RAP
12h 03m1 stop
Logo
10:00 pm - 10:34 pmRAP-BOS
22h 34m3 stops
$396
Find Deal
Mon, Aug 11 - Thu, Aug 14

Delta flights from Boston to Rapid City

Our best Delta deals on Boston to Rapid City flight tickets
Delta
Jan 26
BOS6:00 pmBoston Logan Intl
6h 14m
1 stop
RAP10:14 pmRapid City
Feb 3
RAP10:40 amRapid City
6h 31m
1 stop
BOS7:11 pmBoston Logan Intl
$289
Find similar
Delta
Jan 26
BOS4:00 pmBoston Logan Intl
8h 14m
2 stops
RAP10:14 pmRapid City
Feb 6
RAP4:00 pmRapid City
5h 59m
1 stop
BOS11:59 pmBoston Logan Intl
$294
Find similar
Delta
Jan 26
BOS4:00 pmBoston Logan Intl
8h 14m
2 stops
RAP10:14 pmRapid City
Feb 6
RAP10:40 amRapid City
10h 58m
2 stops
BOS11:38 pmBoston 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
Aug 12
BOS6:07 amBoston Logan Intl
6h 13m
1 stop
RAP10:20 amRapid City
Aug 19
RAP6:30 amRapid City
8h 13m
1 stop
BOS4:43 pmBoston Logan Intl
$314
Find similar
United Airlines
Aug 12
BOS6:07 amBoston Logan Intl
6h 13m
1 stop
RAP10:20 amRapid City
Aug 19
RAP6:30 amRapid City
9h 04m
2 stops
BOS5:34 pmBoston Logan Intl
$319
Find similar
United Airlines
Oct 18
BOS6:00 amBoston Logan Intl
6h 13m
1 stop
RAP10:13 amRapid City
Nov 15
RAP5:15 amRapid City
10h 00m
2 stops
BOS5:15 pmBoston Logan Intl
$357
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 July 31, 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

Mon 1/26

6:00 pm-10:14 pm

1 stop6h 14m

Rapid City

Tue 2/3

10:40 am-7:11 pm

1 stop6h 31m

$289

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Mon 1/26

4:00 pm-10:14 pm

2 stops8h 14m

Rapid City

Fri 2/6

4:00 pm-11:59 pm

1 stop5h 59m

$294

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Mon 1/26

4:00 pm-10:14 pm

2 stops8h 14m

Rapid City

Fri 2/6

10:40 am-11:38 pm

2 stops10h 58m

$299

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Tue 8/12

6:07 am-10:20 am

1 stop6h 13m

Rapid City

Tue 8/19

6:30 am-4:43 pm

1 stop8h 13m

$314

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Tue 8/12

6:07 am-10:20 am

1 stop6h 13m

Rapid City

Tue 8/19

6:30 am-5:34 pm

2 stops9h 04m

$319

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sat 10/18

9:00 am-3:50 pm

2 stops8h 50m

Rapid City

Sat 11/15

10:40 am-1:00 am

2 stops12h 20m

$324

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Sun 9/14

5:00 am-5:42 pm

1 stop14h 42m

Rapid City

Sun 9/21

6:12 pm-9:32 am

1 stop13h 20m

$365

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Mon 8/11

6:30 am-4:33 pm

1 stop12h 03m

Rapid City

Thu 8/14

10:00 pm-10:34 pm

2 stops22h 34m

$383

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Wed 12/10

8:00 am-4:05 pm

2 stops10h 05m

Rapid City

Sat 12/13

5:46 am-5:00 pm

1 stop9h 14m

$384

BostonRapid City

BOS - RAP

BOSRAP

Boston Logan Intl

Mon 8/11

6:30 am-4:33 pm

1 stop12h 03m

Rapid City

Thu 8/14

10:00 pm-10:34 pm

3 stops22h 34m

$396

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 September is, on average, the cheapest month to fly to Rapid City from Boston, with most prices found around $565. If you aren’t able to travel to Rapid City during the month of September, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $579.

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 $629 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 $479 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

Best Price Found

$203

Fastest flight time

6h 12m

Direct flights

None

Airports in Rapid City

1 airport
The best one-way flight to Rapid City from Boston in the past 72 hours is $203. The best round-trip flight deal from Boston to Rapid City found on momondo in the last 72 hours is $289.
The fastest flight from Boston to Rapid City takes 6h 12m
There are no direct flights from Boston to Rapid City. Popular non-direct route for this connection is Boston Logan Intl Airport - Rapid City Airport.
There is 1 airport near Rapid City: Rapid City (RAP)
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 12m, 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
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $378Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
American AirlinesPriceFrom $400Free 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
Sturgis
Keystone
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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