Rapid City to San Juan flights

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Fare seen

€372Seen on 24 Sep 2026

Last checked

8 Oct 2026

Observed fares. Prices may change.

Your next trip, last seen at €199

Lowest observed

25 Oct 2026

Allegiant Air · 3 stops · One way

Cheapest observed day · Last checked: 24 Sep 2026

Departure

12:29

When to fly

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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.

Prices are for observed departure and return date pairs. No data does not mean no flights.

Airlines seen: Allegiant Air, American Airlines, Breeze Airways, Frontier Airlines, JetBlue, United Airlines
Typical journey time: 37h 18m

Short answer

We have seen Allegiant Air fares from Rapid City to San Juan. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare. Fare seen: €372 on 24 Sep 2026.

About this route

Explore the fares we observed from Rapid City to San Juan. Prices move often, so pick your dates to see the latest options.

Route distance: 4,472 km
Typical journey time: 37h 18m
Airlines seen: Allegiant Air, American Airlines, Breeze Airways, Frontier Airlines, JetBlue, United Airlines
Seen on fares with a connection: Allegiant Air, Frontier Airlines, Breeze Airways, JetBlue, United Airlines
Alternative airports: SIG

Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.

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Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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How our prices work

Airport to city: straight-line distance

Rapid City Regional Airport (RAP) → Rapid City, city gazetteer reference point (44.0805, -103.2310): ≈ 14 km.
Fernando Luis Ribas Dominicci Airport (SIG) → San Juan, city gazetteer reference point (18.4663, -66.1057): ≈ 1 km.
Luis Munoz Marin International Airport (SJU) → San Juan, city gazetteer reference point (18.4663, -66.1057): ≈ 11 km.

Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.

Frequently asked

How much was a flight from Rapid City to San Juan?

A fare of €372 was seen on 24 Sep 2026. Fares change, so search your dates for the current price.

Are there direct flights from Rapid City to San Juan?

Our data holds no non-stop flight from Rapid City to San Juan. The fares on this page include at least one stop.

Which airlines fly from Rapid City to San Juan?

These are the carriers we have seen on the route: Allegiant Air, American Airlines, Breeze Airways, Frontier Airlines, JetBlue, United Airlines.

How long does the flight from Rapid City to San Juan take?

The average journey time across the 68 fares we observed is 44h 15m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.

How many of the observed Rapid City to San Juan fares were non-stop?

None of the 68 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.

How observed prices work, what "No data" means and what a fare includes: Read the flight price guide