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$366+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SJU
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
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 February 11, 2026.

This United Airlines deal was found by Cheapflights users on 2/9. 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 10/288:35 am
RAP
-
SJU
2 stops10h 47m
United Airlines
Sat 10/316:45 am
SJU
-
RAP
2 stops14h 23m
United Airlines
Deal found 2/9$366
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Tue 10/277:05 am
RAP
-
SJU
2 stops12h 17m
United Airlines
Tue 10/271:05 am
SJU
-
RAP
2 stops11h 48m
United Airlines
Deal found 2/9$451
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Tue 10/277:05 am
RAP
-
SJU
1 stop8h 20m
United Airlines
Tue 11/32:25 pm
SJU
-
RAP
1 stop9h 08m
United Airlines
Deal found 2/9$456
This American Airlines deal was found by Cheapflights users on 2/9. 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.
Sun 10/254:34 pm
RAP
-
SJU
2 stops25h 36m
American Airlines
Thu 10/298:35 am
SJU
-
RAP
2 stops15h 26m
American Airlines
Deal found 2/9$472
This United Airlines deal was found by Cheapflights users on 2/9. 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 10/317:05 am
RAP
-
SJU
2 stops12h 17m
United Airlines
Mon 11/22:05 am
SJU
-
RAP
2 stops11h 48m
United Airlines
Deal found 2/9$489
This American Airlines deal was found by Cheapflights users on 2/9. 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.
Wed 3/112:21 pm
RAP
-
SJU
2 stops16h 39m
American Airlines
Wed 3/184:18 pm
SJU
-
RAP
2 stops23h 33m
American Airlines
Deal found 2/9$491
This American Airlines deal was found by Cheapflights users on 2/9. 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 3/52:21 pm
RAP
-
SJU
2 stops20h 32m
American Airlines
Wed 3/111:30 am
SJU
-
RAP
1 stop14h 21m
American Airlines
Deal found 2/9$492
This American Airlines deal was found by Cheapflights users on 2/10. 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 8/136:10 pm
RAP
-
SJU
2 stops18h 45m
American Airlines
Thu 8/208:00 am
SJU
-
RAP
2 stops11h 40m
American Airlines
Deal found 2/10$502
This American Airlines deal was found by Cheapflights users on 2/9. 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.
Mon 10/264:34 pm
RAP
-
SJU
2 stops21h 36m
American Airlines
Thu 10/293:35 pm
SJU
-
RAP
1 stop8h 26m
American Airlines
Deal found 2/9$507
This United Airlines deal was found by Cheapflights users on 2/7. 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.
Mon 2/235:20 am
RAP
-
SJU
1 stop10h 05m
United Airlines
Fri 2/272:25 pm
SJU
-
RAP
1 stop9h 19m
United Airlines
Deal found 2/7$520
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Tue 5/55:20 am
RAP
-
SJU
2 stops13h 18m
United Airlines
Thu 5/71:00 am
SJU
-
RAP
2 stops14h 09m
United Airlines
Deal found 2/8$528

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 February 11, 2026.

Round-trip from

$491
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$695
From Rapid City to Puerto Rico
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($112 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($78 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 11, 2026.
Use the filters below to find and compare flights from Rapid City to Puerto Rico that are best for you.

Fly from

Rapid City

Fly to

Puerto Rico

Route

Depart

Return

Price

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Wed 3/11

2:21 pm-9:00 am

2 stops16h 39m

San Juan Luis Munoz Marin Intl

Wed 3/18

4:18 pm-1:51 pm

2 stops23h 33m

$491

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Wed 6/10

12:47 pm-12:15 am

1 stop9h 28m

San Juan Luis Munoz Marin Intl

Mon 6/15

12:59 am-3:02 pm

1 stop16h 03m

$492

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Mon 2/23

5:20 am-9:26 pm

2 stops13h 06m

San Juan Luis Munoz Marin Intl

Fri 2/27

2:25 pm-10:16 pm

1 stop10h 51m

$520

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 5/5

5:20 am-8:38 pm

2 stops13h 18m

San Juan Luis Munoz Marin Intl

Thu 5/7

1:00 am-1:09 pm

2 stops14h 09m

$528

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Mon 2/23

5:20 am-9:26 pm

2 stops13h 06m

San Juan Luis Munoz Marin Intl

Wed 3/4

8:30 am-8:44 pm

2 stops15h 14m

$541

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

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 February 11, 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
9,269 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,269 reviews
United Airlines
7.4
Good
9,269 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,262 reviews
United Airlines
7.4
Good
9,269 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 05m. 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

Browse thousands of different options on Cheapflights for your next trip

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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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$373Average$758FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$416Average$590FlexibilityNo cancel feeOn-time71%

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