HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$446+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SJU
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/28. 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
1 stop10h 18m
United Airlines
Thu 5/71:40 pm
SJU
-
RAP
1 stop10h 15m
United Airlines
Deal found 1/28$446
This United Airlines deal was found by Cheapflights users on 1/26. 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 5/510:00 am
RAP
-
SJU
2 stops11h 50m
United Airlines
Fri 5/87:20 am
SJU
-
RAP
2 stops13h 55m
United Airlines
Deal found 1/26$528
This American Airlines deal was found by Cheapflights users on 1/27. 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 4/811:44 am
RAP
-
SJU
2 stops19h 29m
American Airlines
Sun 4/125:45 am
SJU
-
RAP
2 stops18h 13m
American Airlines
Deal found 1/27$601
This United Airlines deal was found by Cheapflights users on 1/28. 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 5/234:41 pm
RAP
-
SJU
2 stops10h 48m
United Airlines
Fri 6/51:00 am
SJU
-
RAP
2 stops13h 35m
United Airlines
Deal found 1/28$630
This United Airlines deal was found by Cheapflights users on 1/28. 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 5/234:41 pm
RAP
-
SJU
2 stops10h 48m
United Airlines
Sat 6/61:00 am
SJU
-
RAP
2 stops11h 19m
United Airlines
Deal found 1/28$748
This American Airlines deal was found by Cheapflights users on 1/28. 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 5/2312:44 pm
RAP
-
SJU
1 stop8h 07m
American Airlines
Fri 6/512:39 am
SJU
-
RAP
1 stop11h 10m
American Airlines
Deal found 1/28$788
This American Airlines deal was found by Cheapflights users on 1/28. 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 5/2312:44 pm
RAP
-
SJU
2 stops18h 49m
American Airlines
Sat 6/612:59 am
SJU
-
RAP
1 stop16h 47m
American Airlines
Deal found 1/28$846

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 January 29, 2026.

Round-trip from

$446
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$373
From Rapid City to Puerto Rico
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($155 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease ($76 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 29, 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

Tue 5/5

5:20 am-8:38 pm

2 stops13h 18m

San Juan Luis Munoz Marin Intl

Thu 5/7

1:40 pm-9:55 pm

1 stop10h 15m

$446

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 5/5

10:00 am-11:50 pm

2 stops11h 50m

San Juan Luis Munoz Marin Intl

Fri 5/8

7:20 am-7:15 pm

2 stops13h 55m

$528

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Wed 4/8

6:00 am-11:01 pm

1 stop15h 01m

San Juan Luis Munoz Marin Intl

Sun 4/12

5:45 am-9:58 pm

2 stops18h 13m

$601

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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 January 29, 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
9,215 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

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
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

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
11,205 reviews
United Airlines
7.4
Good
9,215 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Entertainment

7.1

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 13h 18m. Fly via United Airlines to get the fastest option. There are 2774 mi between Rapid City and Puerto Rico.

  • 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$373Average$758FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$375Average$590FlexibilityNo 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.