$168 Cheap Flights from San Juan (SJU) to Rapid City (RAP)

View $168 flight on Wed, Dec 10, 2025Opens in a new window

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Rapid City Regional Airport (RAP)

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Cheap Flights from San Juan to Rapid City (SJU-RAP)

Prices were available within the past 7 days and start at $168 for one-way flights and $375 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Dec 5 - Sat, Dec 13
SJU
San Juan
RAP
Rapid City
$375 Roundtrip, found 4 days ago
$375
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Dec 5 from San Juan to Rapid City, returning Sat, Dec 13, priced at $375 found 4 days ago
United
Fri, Dec 5 - Sat, Dec 13
SJU
San Juan
RAP
Rapid City
$381 Roundtrip, found 4 days ago
$381
Roundtrip
found 4 days ago
Select United flight, departing Fri, Dec 5 from San Juan to Rapid City, returning Sat, Dec 13, priced at $381 found 4 days ago
United
Fri, Dec 5 - Sat, Dec 13
SJU
San Juan
RAP
Rapid City
$403 Roundtrip, found 4 days ago
$403
Roundtrip
found 4 days ago
Select United flight, departing Fri, Dec 5 from San Juan to Rapid City, returning Sat, Dec 13, priced at $403 found 4 days ago
United
Sat, Dec 6 - Sat, Dec 13
SJU
San Juan
RAP
Rapid City
$409 Roundtrip, found 4 days ago
$409
Roundtrip
found 4 days ago
Select United flight, departing Sat, Dec 6 from San Juan to Rapid City, returning Sat, Dec 13, priced at $409 found 4 days ago
United
Sat, Dec 6 - Sat, Dec 13
SJU
San Juan
RAP
Rapid City
$415 Roundtrip, found 4 days ago
$415
Roundtrip
found 4 days ago
Select United flight, departing Sat, Dec 6 from San Juan to Rapid City, returning Sat, Dec 13, priced at $415 found 4 days ago
United
Thu, Oct 23 - Mon, Oct 27
SJU
San Juan
RAP
Rapid City
$417 Roundtrip, found 2 days ago
$417
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 23 from San Juan to Rapid City, returning Mon, Oct 27, priced at $417 found 2 days ago
American Airlines
Thu, Oct 23 - Mon, Oct 27
SJU
San Juan
RAP
Rapid City
$421 Roundtrip, found 2 days ago
$421
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Oct 23 from San Juan to Rapid City, returning Mon, Oct 27, priced at $421 found 2 days ago
United
Sat, Oct 25 - Mon, Oct 27
SJU
San Juan
RAP
Rapid City
$425 Roundtrip, found 2 days ago
$425
Roundtrip
found 2 days ago
Select United flight, departing Sat, Oct 25 from San Juan to Rapid City, returning Mon, Oct 27, priced at $425 found 2 days ago
American Airlines
Thu, Oct 23 - Mon, Oct 27
SJU
San Juan
RAP
Rapid City
$427 Roundtrip, found 2 days ago
$427
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Oct 23 from San Juan to Rapid City, returning Mon, Oct 27, priced at $427 found 2 days ago
Delta
Thu, Jan 15 - Mon, Jan 26
SJU
San Juan
RAP
Rapid City
$654 Roundtrip, found 17 hours ago
$654
Roundtrip
found 17 hours ago
Select Delta flight, departing Thu, Jan 15 from San Juan to Rapid City, returning Mon, Jan 26, priced at $654 found 17 hours ago

Find the cheapest month to fly from San Juan (SJU) to Rapid City (RAP)

October is typically the cheapest month to fly

From $315 - $850 per traveler.

Alternative airports near Rapid City

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Rapid City Regional RAP. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $507
RAP
Rapid City Regional
CheapestClosest
Average driving time to city center16 min
Flights from $507
Flights from San Juan (SJU) to Rapid City (RAP)
Origin airport
Luis Munoz Marin Intl.
Destination airport
Rapid City Regional
Airlines serving
American Airlines, Delta, United
Roundtrip price
$375
Distance
2775 mi

San Juan to Rapid City Flights

The cheapest times to fly from San Juan to Rapid City

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to Rapid City are during the month of December. You can find some of the cheapest flights from San Juan to Rapid City with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Juan to Rapid City

Sunday is one of the best days to book for cheap flights from San Juan to Rapid City: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Juan to Rapid City

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to Rapid City in 2025. You can also book with separate airlines for your outbound and return journeys, from $168 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to Rapid City flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to Rapid City airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Rapid City Regional Airport (RAP) cost?
Lock in a cheap one-way flight from $168 or cheap return flight from $375 from Luis Munoz Marin Intl. Airport (SJU) to Rapid City Regional Airport (RAP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Luis Munoz Marin Intl. Airport (SJU) to Rapid City Regional Airport (RAP)?
Flying in December may help you find better deals, as it's the cheapest month for flights between SJU and RAP. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Luis Munoz Marin Intl. Airport (SJU) to Rapid City Regional Airport (RAP)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SJU to RAP flight.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Rapid City Regional Airport (RAP)?
There are no daily nonstop flights departing from Luis Munoz Marin Intl. Airport (SJU) to Rapid City Regional Airport (RAP). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from SJU to RAP?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on a range of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to Rapid City Regional Airport (RAP)?
To arrive at Rapid City Regional Airport (RAP) on schedule, choose a flight that leaves from Luis Munoz Marin Intl. Airport (SJU) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to Rapid City Regional Airport (RAP) last-minute?
Last-minute fares from SJU to RAP are generally more expensive. To secure the lowest prices, start searching for flights well in advance. That said, if you can play around with your travel dates, it's possible to land a cheap ticket right before you leave.
Is it cheaper to book a SJU to RAP flight and hotel package?
Compared with arranging hotels and flights separately, booking a SJU to RAP flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the hassle out of planning your trip. Simply secure your flights and select from our wide range of stays, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Rapid City Regional Airport (RAP)?
Typically, you can reschedule or cancel your SJU to RAP flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you'd like further information, head to our Customer Service portal.

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*Available to One Key members.