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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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SJU
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
1 adult, Economy
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Cheap flight deals from Rapid City to Puerto Rico

Best flights from Rapid City to Puerto Rico
Discover carefully curated flight deals from Rapid City to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 31, 2025.

This American Airlines deal was found by Cheapflights users on 12/28. 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.
Wed 3/112:21 pmRAP - SJU
2 stops16h 39mAmerican Airlines
Tue 3/171:30 amSJU - RAP
1 stop14h 21mAmerican Airlines
Deal found 12/28$335
This United Airlines deal was found by Cheapflights users on 12/30. 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 1/145:10 amRAP - SJU
2 stops12h 50mUnited Airlines
Sat 1/172:05 amSJU - RAP
2 stops14h 07mUnited Airlines
Deal found 12/30$579
This American Airlines deal was found by Cheapflights users on 12/28. 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.
Mon 3/162:21 pmRAP - SJU
2 stops21h 42mAmerican Airlines
Tue 3/171:30 amSJU - RAP
1 stop14h 21mAmerican Airlines
Deal found 12/28$370
This American Airlines deal was found by Cheapflights users on 12/29. 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.
Tue 2/102:08 pmRAP - SJU
2 stops22h 51mAmerican Airlines
Wed 2/187:33 amSJU - RAP
1 stop9h 18mAmerican Airlines
Deal found 12/29$375
This American Airlines deal was found by Cheapflights users on 12/29. 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 2/202:21 pmRAP - SJU
2 stops18h 35mAmerican Airlines
Wed 3/114:18 pmSJU - RAP
2 stops23h 33mAmerican Airlines
Deal found 12/29$437
This United Airlines deal was found by Cheapflights users on 12/28. 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.
Sun 1/1112:35 pmRAP - SJU
2 stops14h 36mUnited Airlines
Thu 1/158:35 amSJU - RAP
2 stops14h 57mUnited Airlines
Deal found 12/28$589

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 31, 2025.

Round-trip from

$335
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$1,395
From Rapid City to Puerto Rico
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($164 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 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 31, 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

Wed 3/11

2:21 pm-9:00 am

2 stops16h 39m

San Juan Luis Munoz Marin Intl

Tue 3/17

1:30 am-1:51 pm

1 stop14h 21m

$335

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Mon 3/16

2:21 pm-2:03 pm

2 stops21h 42m

San Juan Luis Munoz Marin Intl

Tue 3/17

1:30 am-1:51 pm

1 stop14h 21m

$370

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 2/10

2:08 pm-3:59 pm

2 stops22h 51m

San Juan Luis Munoz Marin Intl

Wed 2/18

7:33 am-1:51 pm

1 stop9h 18m

$375

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Fri 2/20

2:21 pm-11:56 am

2 stops18h 35m

San Juan Luis Munoz Marin Intl

Wed 3/11

4:18 pm-1:51 pm

2 stops23h 33m

$437

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Wed 1/14

5:10 am-9:00 pm

2 stops12h 50m

San Juan Luis Munoz Marin Intl

Sat 1/17

2:05 am-1:12 pm

2 stops14h 07m

$579

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Sun 1/11

12:35 pm-6:11 am

2 stops14h 36m

San Juan Luis Munoz Marin Intl

Thu 1/15

8:35 am-8:32 pm

2 stops14h 57m

$589

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

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 31, 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
9,124 reviews

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,124 reviews
United Airlines
7.4
Good
9,124 reviews

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,074 reviews
United Airlines
7.4
Good
9,124 reviews

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 16h 39m. Fly via American 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

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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 December 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$356Average$719FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$375Average$590FlexibilityNo cancel feeOn-time71%

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