HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$168+ Cheap flights from Rapid City (RAP) to Puerto Rico

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SJU
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Rapid City to Puerto Rico with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
Sun 12/213:35 pmRAP - SJU
2 stops11h 36mUnited Airlines
Sun 12/287:45 amSJU - RAP
2 stops14h 27mUnited Airlines
Deal found 12/17$609
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Sun 12/212:20 pmRAP - SJU
2 stops20h 21mAmerican Airlines
Sun 12/285:24 amSJU - RAP
2 stops18h 56mAmerican Airlines
Deal found 12/16$1,045
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Mon 12/227:00 amRAP - SJU
1 stop8h 25mUnited Airlines
Mon 12/293:46 pmSJU - RAP
2 stops24h 00mUnited Airlines
Deal found 12/15$1,157
This American Airlines deal was found by Cheapflights users on 12/18. 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 12/202:20 pmRAP - SJU
2 stops20h 34mAmerican Airlines
Sat 12/275:24 amSJU - RAP
2 stops18h 56mAmerican Airlines
Deal found 12/18$1,213
This Delta deal was found by Cheapflights users on 12/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:19 amRAP - SJU
2 stops11h 50mDelta
Sat 12/274:45 pmSJU - RAP
1 stop8h 56mDelta
Deal found 12/18$1,224
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/207:00 amRAP - SJU
2 stops20h 11mUnited Airlines
Sat 12/277:45 amSJU - RAP
2 stops16h 04mUnited Airlines
Deal found 12/17$1,235

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 December 18, 2025.

Round-trip from

$335
(American Airlines)

One-way from

$168
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$1,395
From Rapid City to Puerto Rico
Search Deals
One-way flight from Rapid City to Puerto Rico
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($154 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($75 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 18, 2025.
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

Sat 1/31

2:08 pm-10:48 am

2 stops17h 40m

San Juan Luis Munoz Marin Intl

Wed 2/4

5:51 pm-1:34 pm

2 stops22h 43m

$335

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Sun 3/1

7:00 am-6:25 pm

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Wed 3/4

7:45 am-6:54 pm

2 stops14h 09m

$463

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 1/13

5:10 am-9:26 pm

2 stops13h 16m

San Juan Luis Munoz Marin Intl

Tue 1/20

7:45 am-8:32 pm

2 stops15h 47m

$565

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Fri 1/30

2:08 pm-12:27 pm

2 stops19h 19m

$168

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Sat 1/31

2:08 pm-10:48 am

2 stops17h 40m

$168

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Fri 1/30

6:53 pm-9:47 am

3 stops35h 54m

$366

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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 December 18, 2025.
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
9,091 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,091 reviews
United Airlines
7.4
Good
9,091 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
American Airlines
7.2
Good
11,054 reviews
United Airlines
7.4
Good
9,091 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

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 8h 25m. 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$373Average$770FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$375Average$445FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.