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$172+ 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SJU
Feb 6 — Feb 131
Fri 2/6
Fri 2/13
1 adult, Economy
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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 January 7, 2026.

Round-trip from

$336
(American Airlines)

One-way from

$172
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$373
From Rapid City to Puerto Rico
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One-way flight from Rapid City to Puerto Rico
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Highest demand for flights based on searches. 19% potential increase in price ($159 potential increase over avg. RT price).
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Cheapest flight prices on average. 13% potential price decrease ($75 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 7, 2026.

This American Airlines deal was found by Cheapflights users on 1/4. 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 1/312:08 pmRAP - SJU
2 stops17h 40mAmerican Airlines
Wed 2/47:07 amSJU - RAP
1 stop17h 08mAmerican Airlines
Deal found 1/4$336
This United Airlines deal was found by Cheapflights users on 1/5. 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 5/55:00 amRAP - SJU
2 stops14h 24mUnited Airlines
Fri 5/81:40 pmSJU - RAP
1 stop9h 03mUnited Airlines
Deal found 1/5$426
This American Airlines deal was found by Cheapflights users on 1/6. 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 2/195:31 amRAP - SJU
1 stop15h 00mAmerican Airlines
Tue 2/247:33 amSJU - RAP
1 stop9h 18mAmerican Airlines
Deal found 1/6$476
This American Airlines deal was found by Cheapflights users on 1/6. 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 3/262:21 pmRAP - SJU
2 stops20h 32mAmerican Airlines
Thu 4/21:30 amSJU - RAP
1 stop14h 21mAmerican Airlines
Deal found 1/6$542
This American Airlines deal was found by Cheapflights users on 1/6. 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 4/32:21 pmRAP - SJU
2 stops16h 39mAmerican Airlines
Sat 4/116:01 pmSJU - RAP
2 stops19h 13mAmerican Airlines
Deal found 1/6$578
This American Airlines deal was found by Cheapflights users on 1/6. 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 3/275:31 amRAP - SJU
1 stop15h 00mAmerican Airlines
Sat 4/46:01 pmSJU - RAP
2 stops21h 50mAmerican Airlines
Deal found 1/6$656

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 7, 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

Thu 2/19

2:21 pm-10:00 am

2 stops16h 39m

San Juan Luis Munoz Marin Intl

Tue 2/24

7:33 am-1:51 pm

1 stop9h 18m

$336

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 5/5

5:00 am-5:38 pm

1 stop10h 38m

San Juan Luis Munoz Marin Intl

Fri 5/8

1:40 pm-8:43 pm

1 stop9h 03m

$426

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Thu 3/26

2:21 pm-12:53 pm

2 stops20h 32m

San Juan Luis Munoz Marin Intl

Thu 4/2

1:30 am-1:51 pm

1 stop14h 21m

$542

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Fri 4/3

2:21 pm-9:00 am

2 stops16h 39m

San Juan Luis Munoz Marin Intl

Sat 4/11

6:01 pm-11:14 am

2 stops19h 13m

$578

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Thu 3/5

2:21 pm-11:56 am

2 stops18h 35m

San Juan Luis Munoz Marin Intl

Sat 3/7

1:30 am-12:51 pm

1 stop14h 21m

$618

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Sun 4/5

2:21 pm-5:28 am

1 stop13h 07m

$275

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Sat 4/4

2:21 pm-5:28 am

1 stop13h 07m

$316

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Thu 2/12

5:42 pm-2:53 am

3 stops54h 11m

$343

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Thu 2/12

5:31 am-11:31 pm

1 stop15h 00m

$503

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Sat 4/4

2:42 pm-8:34 pm

3 stops27h 52m

$618

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 11 results
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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 7, 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
9,139 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
9,139 reviews
United Airlines
7.4
Good
9,139 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
American Airlines
7.2
Good
11,095 reviews
United Airlines
7.4
Good
9,139 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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 38m. 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

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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 January 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$356Average$719FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$375Average$590FlexibilityNo cancel feeOn-time71%

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