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$275+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SJU
apr 3 — apr 101
ven 4/3
ven 4/10
1 adult, Economy
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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 marzo 4, 2026.

This United Airlines deal was found by Cheapflights users on 3/3. 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.
mar 5/57:00 am
RAP
-
SJU
1 stop8h 38m
United Airlines
ven 5/87:20 am
SJU
-
RAP
2 stops15h 08m
United Airlines
Deal found 3/3$420
This United Airlines deal was found by Cheapflights users on 3/1. 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.
mar 5/57:00 am
RAP
-
SJU
2 stops12h 24m
United Airlines
gio 5/77:20 am
SJU
-
RAP
2 stops16h 26m
United Airlines
Deal found 3/1$456
This American Airlines deal was found by Cheapflights users on 3/3. 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.
mer 4/811:53 am
RAP
-
SJU
2 stops19h 20m
American Airlines
dom 4/126:45 am
SJU
-
RAP
1 stop17h 13m
American Airlines
Deal found 3/3$600
This American Airlines deal was found by Cheapflights users on 3/3. 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.
lun 6/2912:41 pm
RAP
-
SJU
2 stops18h 58m
American Airlines
sab 7/412:59 am
SJU
-
RAP
1 stop12h 16m
American Airlines
Deal found 3/3$709

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 marzo 4, 2026.

Round-trip from

$420
(United Airlines)

One-way from

$275
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$727
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. 13% potential increase in price ($105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($78 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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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 marzo 4, 2026.
Use the filters below to find and compare flights from Rapid City to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

mar 5/5

7:00 am-5:38 pm

1 stop8h 38m

San Juan Luis Munoz Marin Intl

ven 5/8

7:20 am-8:28 pm

2 stops15h 08m

$420

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

mar 5/5

7:00 am-5:38 pm

1 stop8h 38m

San Juan Luis Munoz Marin Intl

gio 5/7

1:40 pm-8:28 pm

1 stop8h 48m

$456

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

mer 4/8

11:53 am-9:13 am

2 stops19h 20m

San Juan Luis Munoz Marin Intl

dom 4/12

7:00 pm-12:38 pm

2 stops19h 38m

$681

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

mer 3/25

2:21 pm-9:00 am

2 stops16h 39m

$275

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

gio 3/26

5:41 pm-5:25 pm

1 stop21h 44m

$528

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Sorted by cheapest first

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 marzo 4, 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
9,382 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

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
9,382 reviews
United Airlines
7.4
Good
9,382 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

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
7.1
Good
11,378 reviews
United Airlines
7.4
Good
9,382 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

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 8h 38m. 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

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Alternative routes for Rapid City to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Rapid City to Port Au Prince flights

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 marzo 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$373Average$758FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$416Average$590FlexibilityNo cancel feeOn-time71%

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