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Luis Munoz Marin Intl

$183+ Cheap flights from Rapid City (RAP) to Luis Munoz Marin Intl (SJU)

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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — SJU
Mar 23 — Mar 301
Mon 3/23
Mon 3/30
1 adult, Economy
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Cheap flight deals from Rapid City to Luis Munoz Marin Intl

Cheapest flights from Rapid City to Luis Munoz Marin Intl
Explore the most affordable flight options available from Rapid City to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 21, 2026.

This American Airlines deal was found by Cheapflights users on 2/18. 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 3/245:32 am
RAP
-
SJU
2 stops15h 26m
American Airlines
Tue 4/77:00 pm
SJU
-
RAP
2 stops19h 38m
American Airlines
Deal found 2/18$399
This American Airlines deal was found by Cheapflights users on 2/19. 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 8/1111:08 am
RAP
-
SJU
1 stop9h 48m
American Airlines
Mon 8/244:49 pm
SJU
-
RAP
2 stops19h 47m
American Airlines
Deal found 2/19$432
This American Airlines deal was found by Cheapflights users on 2/19. 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 4/1011:53 am
RAP
-
SJU
2 stops19h 18m
American Airlines
Tue 4/147:00 pm
SJU
-
RAP
2 stops19h 38m
American Airlines
Deal found 2/19$448
This United Airlines deal was found by Cheapflights users on 2/18. 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 5/57:00 am
RAP
-
SJU
1 stop8h 38m
United Airlines
Fri 5/87:20 am
SJU
-
RAP
2 stops15h 08m
United Airlines
Deal found 2/18$476
This American Airlines deal was found by Cheapflights users on 2/20. 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 8/1111:08 am
RAP
-
SJU
1 stop9h 48m
American Airlines
Sat 8/154:49 pm
SJU
-
RAP
2 stops19h 47m
American Airlines
Deal found 2/20$481
This American Airlines deal was found by Cheapflights users on 2/19. 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 5/84:57 pm
RAP
-
SJU
2 stops19h 55m
American Airlines
Thu 5/2112:59 am
SJU
-
RAP
1 stop12h 15m
American Airlines
Deal found 2/19$521
This Delta deal was found by Cheapflights users on 2/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:00 am
RAP
-
SJU
2 stops14h 56m
Delta
Fri 3/64:30 pm
SJU
-
RAP
1 stop8h 57m
Delta
Deal found 2/17$530
This American Airlines deal was found by Cheapflights users on 2/18. 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 7/3012:44 pm
RAP
-
SJU
1 stop8h 07m
American Airlines
Tue 8/47:09 pm
SJU
-
RAP
2 stops17h 27m
American Airlines
Deal found 2/18$570
This American Airlines deal was found by Cheapflights users on 2/17. 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 4/84:57 pm
RAP
-
SJU
1 stop9h 35m
American Airlines
Sun 4/127:00 pm
SJU
-
RAP
2 stops19h 38m
American Airlines
Deal found 2/17$606

Find flight deals from Rapid City to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$399
(American Airlines)

One-way from

$183
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$695
Provider with most accurate pricing for Rapid City-San Juan Luis Munoz Marin Intl flight deals.
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Provider most trusted by Cheapflights users for Rapid City-San Juan Luis Munoz Marin Intl flights.
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From Rapid City to San Juan Luis Munoz Marin Intl
Search Deals
One-way flight from Rapid City to San Juan Luis Munoz Marin Intl
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 February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rapid City to Luis Munoz Marin Intl 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 February 21, 2026.
Use the filters below to find and compare flights from Rapid City to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Rapid City

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Fri 4/10

4:57 pm-4:32 am

1 stop9h 35m

San Juan Luis Munoz Marin Intl

Tue 4/14

7:00 pm-12:38 pm

2 stops19h 38m

$399

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 8/11

11:08 am-10:56 pm

1 stop9h 48m

San Juan Luis Munoz Marin Intl

Mon 8/24

4:49 pm-10:36 am

2 stops19h 47m

$432

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

7:40 am-8:28 pm

2 stops14h 48m

$476

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 3/24

2:21 pm-5:28 am

1 stop13h 07m

San Juan Luis Munoz Marin Intl

Tue 4/7

7:00 pm-12:38 pm

2 stops19h 38m

$481

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 3/3

6:00 am-11:56 pm

2 stops14h 56m

San Juan Luis Munoz Marin Intl

Fri 3/6

4:30 pm-10:27 pm

1 stop8h 57m

$530

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 3/3

2:21 pm-11:56 am

2 stops18h 35m

San Juan Luis Munoz Marin Intl

Fri 3/6

7:00 am-10:36 pm

2 stops18h 36m

$530

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 8/4

10:19 am-11:16 pm

1 stop10h 57m

San Juan Luis Munoz Marin Intl

Sat 8/15

4:49 pm-10:36 am

2 stops19h 47m

$530

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Thu 4/30

11:53 am-9:13 am

2 stops19h 20m

$183

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 3/3

6:00 am-11:56 pm

2 stops14h 56m

$265

Rapid CitySan Juan

RAP - SJU

RAPSJU

Rapid City

Tue 3/3

5:38 am-11:31 pm

1 stop14h 53m

$265

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Showing 1-10 of 11 results
1
2

Compare providers for flights from Rapid City to Luis Munoz Marin Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rapid City to Luis Munoz Marin Intl in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Rapid City-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rapid City-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rapid City-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rapid City-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rapid City-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Rapid City to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated February 21, 2026.
See what other customers who have flown with United Airlines and American Airlines from Rapid City to San Juan Luis Munoz Marin Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,335 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

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
9,335 reviews
United Airlines
7.4
Good
9,335 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

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
11,334 reviews
United Airlines
7.4
Good
9,335 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

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 Luis Munoz Marin Intl. 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 San Juan Luis Munoz Marin Intl?

    Located just 9.0 mi from the city center, Rapid City is the airport most travelers will use when flying to San Juan Luis Munoz Marin Intl from Rapid City. Booking flights from Rapid City (RAP) to San Juan Luis Munoz Marin Intl should be relatively easy as there are 0 daily outbound flights to San Juan Luis Munoz Marin Intl from 2 different airlines.

  • How long is the flight from Rapid City to San Juan Luis Munoz Marin Intl Airport?

    Airlines like American Airlines and United Airlines fly from Rapid City to San Juan Luis Munoz Marin Intl Airport in about 9h 35m. The time it takes to get you to your destination can typically vary by up to 2h 15m. Airlines will cover a distance of 2774 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Rapid City to San Juan Luis Munoz Marin Intl Airport round-trip?

    Currently priced at $373, United Airlines will fly you from Rapid City to San Juan Luis Munoz Marin Intl Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $416. United Airlines is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Rapid City to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Rapid City to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rapid City to Luis Munoz Marin Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Luis Munoz Marin Intl.

  • Can I find deals for business class flights from Rapid City to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Rapid City to Luis Munoz Marin Intl 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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Fajardo
Dorado
Luquillo
Rio Grande
Humacao
Bayamón

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Rapid City to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.
Sioux Falls to Luis Munoz Marin Intl flights

Top 2 airlines flying from Rapid City to Luis Munoz Marin Intl

Discover the top 2 airlines that operate flights from Rapid City to Luis Munoz Marin Intl. 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 February 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$373Average$758FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$416Average$590FlexibilityNo cancel feeOn-time71%

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