Cheap flights from San Juan Luis Munoz Marin Intl Airport to Saint Thomas Island from $108

The month of March is another great option to travel to Saint Thomas Island, with average flight prices from San Juan Luis Munoz Marin Intl Airport averaging around $168.

On average, the least expensive day to fly to Saint Thomas Island from San Juan Luis Munoz Marin Intl Airport is on a Friday. momondo users have found tickets for Friday departures for as low as $213. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from San Juan Luis Munoz Marin Intl Airport to Saint Thomas Island for around $353.

The cheapest time of day to fly to Saint Thomas Island is at noon when flights can be purchased for as low as $218. Flights to Saint Thomas Island are more costly in the morning, with an average ticket price of $288. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from San Juan Luis Munoz Marin Intl to Saint Thomas Island Cyril E King for the best San Juan Luis Munoz Marin Intl - Saint Thomas Island Cyril E King flight prices

You are more likely to see cheaper flights to Saint Thomas Island from San Juan Luis Munoz Marin Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Saint Thomas Island for around $233 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Saint Thomas Island from San Juan Luis Munoz Marin Intl Airport for as low as $94 on momondo.

There are 2 cabin classes available to choose from on San Juan Luis Munoz Marin Intl Airport to Saint Thomas Island flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 13% of flights between San Juan and Saint Thomas Island have experienced a delay on any given week. The average delay length over the past 12 months has been 83 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, Cape Air have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

As of September 2026, 7 flights take off from San Juan Luis Munoz Marin Intl Airport and land in Saint Thomas Island each day. The most common flight departure time for this route is 4:00PM, with 57% of daily flights taking off in the afternoon.

As of September 2026, there are 52 flights per week flying from San Juan Luis Munoz Marin Intl Airport to Saint Thomas Island. The most common day of the week flights depart is Sat, with 19% of flights taking off on this day.