The cheapest times to fly from STT to SJU are

  • August 13th to February 18th (except the week of December 17th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from STT to SJU is late October. Prices can be as high as $211 for Friday flights during mid December, or as low as $107 for Sunday flights around late October.


When to Fly to San Juan

Flying from Charlotte Amalie, VI (STT) to San Juan, PR (SJU) will usually cost between $109 to $176 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late October with an average ticket price of $110. Due to high demand the most expensive time to fly is mid December, with an average price of $153. Planning your trip to low-cost times can easily save you $43 on economy flights and even more on first-class flights. Generally, any price below $126 can be considered a good price for a round-trip STT to SJU flight.

See below for a graph of average weekly prices for the STT to SJU route. All prices are for round-trip tickets in USD.

STT to SJU Flight Prices

Compared to other flights, the STT to SJU flight is much cheaper than the average and costs much less than the average flight leaving from Saint Thomas. The average price per mile (for a direct flight) is $1.16, which is above average.


Flight Prices by Day of the Week

Sunday is usually the cheapest day to depart and return on this flight. Fridays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $24 (17%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Sunday and returning a week later will cost an average of $119. Return trip prices are from the SJU to STT flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from STT to SJU can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 6 minutes may be realistic.


Flight Questions Answered

Still have questions about flying from STT to SJU? We’ve got answers.

Which airlines fly this route?

You can find 8 major airlines flying this route most often: American, Cape Air, Delta, JetBlue, Seaborne Airlines, Silver Airways, Spirit, United, and potentially more during busy seasons.

How far away is it from Luis Munoz Marin International Airport to Cyril E King Airport?

The distance between the two airports is roughly 68 miles or 109 kilometers.

How long does it take to fly from STT to SJU?

The real-world flight time for a nonstop STT to SJU flight is about 1 hour 6 minutes.

How many flights go between Charlotte Amalie, VI and San Juan, PR?

It depends on the day of the week and the date, but a typical day might have around 76 available flights from STT to SJU.


Airport Location Info


Departing Airport

Origination code STT
Origination airport name Cyril E King Airport
City Charlotte Amalie, VI
Country the United States
Latitude 18.3
Longitude -65

Return Airport

Destination code SJU
Destination airport name Luis Munoz Marin International Airport
City San Juan, PR
Country the United States
Latitude 18.4
Longitude -66


Late and Early Flight Data

Flights from STT to SJU tend to depart later than the average flight. According to our recently updated data, 35% of flights departed 5 or more minutes late, and 37% of flights left 5 or more minutes early. On average you can expect to leave SJU heading for STT about 34 minutes late. This does significantly impact arrival time, as the average landing time in San Juan, PR is about 29 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • JetBlue: 34 minutes late
  • Some airlines not reporting


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.