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$335+ 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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SJU
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Find 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 November 26, 2025.

This American Airlines deal was found by Cheapflights users on 11/24. 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 12/131:47 pmRAP - SJU
2 stops20h 43mAmerican Airlines
Tue 12/235:24 amSJU - RAP
2 stops19h 07mAmerican Airlines
Deal found 11/24$457
This American Airlines deal was found by Cheapflights users on 11/23. 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 11/277:30 amRAP - SJU
2 stops27h 13mAmerican Airlines
Sat 11/296:00 amSJU - RAP
2 stops18h 17mAmerican Airlines
Deal found 11/23$798
This United Airlines deal was found by Cheapflights users on 11/23. 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 11/277:10 amRAP - SJU
1 stop8h 15mUnited Airlines
Sat 11/292:25 pmSJU - RAP
1 stop10h 34mUnited Airlines
Deal found 11/23$947
This United Airlines deal was found by Cheapflights users on 11/24. 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 11/247:10 amRAP - SJU
2 stops14h 26mUnited Airlines
Sun 11/304:52 pmSJU - RAP
2 stops19h 23mUnited Airlines
Deal found 11/24$1,097
This American Airlines deal was found by Cheapflights users on 11/26. 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 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 stops18h 19mAmerican Airlines
Sun 12/285:24 amSJU - RAP
2 stops18h 56mAmerican Airlines
Deal found 11/26$1,125
This United Airlines deal was found by Cheapflights users on 11/26. 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.
Sat 12/205:15 amRAP - SJU
2 stops21h 56mUnited Airlines
Sat 12/272:25 pmSJU - RAP
1 stop29h 35mUnited Airlines
Deal found 11/26$1,130
This United Airlines deal was found by Cheapflights users on 11/24. 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 stops26h 51mUnited Airlines
Sun 12/288:30 amSJU - RAP
2 stops29h 00mUnited Airlines
Deal found 11/24$1,133

Cheap 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 November 26, 2025.

Round-trip from

$335
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$638
From Rapid City to Puerto Rico
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($178 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($74 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 26, 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

Tue 3/31

2:25 pm-5:28 am

1 stop13h 03m

San Juan Luis Munoz Marin Intl

Tue 4/7

3:45 pm-11:33 am

2 stops21h 48m

$335

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 1/27

7:00 am-9:00 pm

2 stops11h 00m

San Juan Luis Munoz Marin Intl

Fri 1/30

8:35 am-8:32 pm

2 stops14h 57m

$335

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 1/27

6:00 am-10:26 pm

1 stop13h 26m

San Juan Luis Munoz Marin Intl

Fri 1/30

7:07 am-1:34 pm

1 stop9h 27m

$335

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Fri 2/6

2:08 pm-10:48 am

2 stops17h 40m

San Juan Luis Munoz Marin Intl

Sat 2/14

7:30 am-1:52 pm

1 stop9h 22m

$415

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Sun 1/25

5:10 am-6:25 pm

1 stop10h 15m

San Juan Luis Munoz Marin Intl

Thu 1/29

8:10 am-6:47 pm

2 stops13h 37m

$425

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

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 November 26, 2025.
Read through reviews of airlines operating flights from Rapid City to Puerto Rico, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,046 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,046 reviews
United Airlines
7.4
Good
9,046 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 11h. 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 airline flying from Rapid City to Puerto Rico

Discover the top airline 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$464Average$719FlexibilityNo cancel feeOn-time69%

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