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Puerto Rico

$426+ Cheap flights from Rapid City (RAP) to Puerto Rico

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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SJU
May 20 — May 271
Wed 5/20
Wed 5/27
1 adult, Economy
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Cheap flight deals from Rapid City to Puerto Rico

Cheapest flights from Rapid City to Puerto Rico
Explore the most affordable flight options available from Rapid City to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 20, 2026.

This American Airlines deal was found by Cheapflights users on 4/19. 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 9/174:58 pm
RAP
-
SJU
2 stops19h 47m
American Airlines
Thu 9/247:05 pm
SJU
-
RAP
2 stops16h 44m
American Airlines
Deal found 4/19$426
This United Airlines deal was found by Cheapflights users on 4/18. 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 5/165:20 am
RAP
-
SJU
1 stop10h 18m
United Airlines
Sun 5/242:05 am
SJU
-
RAP
2 stops12h 24m
United Airlines
Deal found 4/18$499
This American Airlines deal was found by Cheapflights users on 4/20. 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 4/246:00 am
RAP
-
SJU
1 stop15h 02m
American Airlines
Wed 4/297:25 am
SJU
-
RAP
2 stops16h 33m
American Airlines
Deal found 4/20$590
This United Airlines deal was found by Cheapflights users on 4/15. 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 4/259:20 am
RAP
-
SJU
2 stops12h 30m
United Airlines
Tue 4/281:00 am
SJU
-
RAP
2 stops14h 08m
United Airlines
Deal found 4/15$680
This United Airlines deal was found by Cheapflights users on 4/19. 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 9/175:53 pm
RAP
-
SJU
2 stops17h 01m
United Airlines
Thu 9/242:00 pm
SJU
-
RAP
1 stop8h 44m
United Airlines
Deal found 4/19$704
This American Airlines deal was found by Cheapflights users on 4/18. 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.
Sat 5/164:57 pm
RAP
-
SJU
1 stop9h 35m
American Airlines
Mon 5/255:30 am
SJU
-
RAP
1 stop18h 03m
American Airlines
Deal found 4/18$711
This American Airlines deal was found by Cheapflights users on 4/16. 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 7/1012:41 pm
RAP
-
SJU
1 stop8h 59m
American Airlines
Sun 7/195:45 am
SJU
-
RAP
1 stop17h 46m
American Airlines
Deal found 4/16$851

Find flight deals from Rapid City to Puerto Rico

Keep the following information in mind while searching for Rapid City to Puerto Rico flight deals. Data was last updated April 20, 2026.

Round-trip from

$426
(American Airlines)

Popular in

December

Cheapest in

November

Average price

$603
From Rapid City to Puerto Rico
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease ($83 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rapid City to Puerto Rico 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 April 20, 2026.
Use the filters below to find and compare flights from Rapid City to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Thu 9/17

4:58 pm-2:45 pm

2 stops19h 47m

San Juan Luis Munoz Marin Intl

Thu 9/24

7:05 pm-9:49 am

2 stops16h 44m

$426

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Sat 5/16

5:20 am-5:38 pm

1 stop10h 18m

San Juan Luis Munoz Marin Intl

Sun 5/24

2:05 am-12:29 pm

2 stops12h 24m

$499

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Thu 9/17

5:53 pm-12:54 pm

2 stops17h 01m

San Juan Luis Munoz Marin Intl

Thu 9/24

2:00 pm-8:44 pm

1 stop8h 44m

$704

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Sat 5/16

4:57 pm-4:32 am

1 stop9h 35m

San Juan Luis Munoz Marin Intl

Mon 5/25

5:30 am-9:33 pm

1 stop18h 03m

$711

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Fri 7/10

12:41 pm-11:40 pm

1 stop8h 59m

San Juan Luis Munoz Marin Intl

Sun 7/19

5:45 am-9:31 pm

1 stop17h 46m

$851

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Fri 7/10

9:00 am-5:29 am

2 stops18h 29m

San Juan Luis Munoz Marin Intl

Sat 7/18

1:00 am-10:24 am

2 stops11h 24m

$866
Quickest round-trip

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Fri 7/3

5:00 am-5:38 pm

1 stop10h 38m

San Juan Luis Munoz Marin Intl

Tue 7/7

1:40 pm-10:33 pm

1 stop10h 53m

$891

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

Sorted by cheapest first

Best time to book a flight from Rapid City to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Rapid City with our price prediction graph.
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 Rapid City to Puerto Rico
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated April 20, 2026.
Read through reviews of airlines operating flights from Rapid City to Puerto Rico, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,607 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,607 reviews
United Airlines
7.4
Good
9,607 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
American Airlines
7.1
Good
11,625 reviews
United Airlines
7.4
Good
9,607 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

Related info for your journey

Find useful and relevant information for your journey from Rapid City to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Rapid City to Puerto Rico?

    Most people fly from Rapid City (RAP) if they book a flight from Rapid City to Puerto Rico. Rapid City is conveniently located just 9.0 mi from Rapid City’s city center.

  • How long is the flight from Rapid City to Puerto Rico?

    There are many flights that can get you from Rapid City to Puerto Rico in 10h 18m. Fly via American Airlines or United Airlines to get the fastest option. There are 2774 mi between Rapid City and Puerto Rico. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Rapid City to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Rapid City to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rapid City to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Puerto Rico.

  • Can I find deals for business class flights from Rapid City to Puerto Rico?

    Yes. Cheapflights offers flight deals from Rapid City to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Rapid City to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
Sioux Falls to Luis Munoz Marin Intl flights
Sioux Falls to Punta Cana flights
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Sioux Falls to Montego Bay flights
Rapid City to Port Au Prince flights

Top 2 airlines flying from Rapid City to Puerto Rico

Discover the top 2 airlines that operate flights from Rapid City to Puerto Rico. 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 2,558,603 searches. Data last updated April 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$356Average$758FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$416Average$590FlexibilityNo cancel feeOn-time71%

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