Cheap Flights from St. Thomas (SPB) to San Juan (SJU)

Popular airlines from St. Thomas (SPB-St. Thomas Seaplane Base) to Luis Munoz Marin Intl. Airport (SJU)

Frequently asked questions

How much does a flight from St. Thomas Seaplane Base Airport (SPB) to Luis Munoz Marin Intl. Airport (SJU) cost?
Get a cheap one-way flight or cheap return flight from St. Thomas Seaplane Base Airport (SPB) to Luis Munoz Marin Intl. Airport (SJU) 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 St. Thomas Seaplane Base Airport (SPB) to Luis Munoz Marin Intl. Airport (SJU)?
The cheapest month to fly from SPB to SJU is , when demand is low. Off-peak season is generally when you'll find cheap fares for travel between these airports.
Which airlines fly direct from St. Thomas Seaplane Base Airport (SPB) to Luis Munoz Marin Intl. Airport (SJU)?
There are no direct flights from St. Thomas (SPB-St. Thomas Seaplane Base) to Luis Munoz Marin Intl. Airport (SJU). However, you can find other airports offering nonstop flights. Hop on your plane at Cyril E. King Airport (STT) and fly straight to San Juan without a layover.
What is the cheapest airline that flies from St. Thomas Seaplane Base Airport (SPB) to Luis Munoz Marin Intl. Airport (SJU)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SPB to SJU flight.
How many flights per day from St. Thomas Seaplane Base Airport (SPB) to Luis Munoz Marin Intl. Airport (SJU)?
You'll need to catch a flight with a layover if you're traveling from St. Thomas Seaplane Base Airport (SPB) to Luis Munoz Marin Intl. Airport (SJU). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from SPB to SJU?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from St. Thomas Seaplane Base Airport (SPB) to Luis Munoz Marin Intl. Airport (SJU)?
Opt for a flight from St. Thomas Seaplane Base Airport (SPB) to Luis Munoz Marin Intl. Airport (SJU) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this have a 22% higher chance of being canceled, on average.**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 St. Thomas Seaplane Base Airport (SPB) to Luis Munoz Marin Intl. Airport (SJU) last-minute?
Waiting until just before your trip to book a flight from SPB to SJU often results in higher prices. While you might find some last-minute deals, they aren't always guaranteed. Keep your travel plans flexible to boost your chances of snagging a bargain.
Can I cancel or change the date of my flight from St. Thomas Seaplane Base Airport (SPB) to Luis Munoz Marin Intl. Airport (SJU)?
You can usually cancel or reschedule your SPB to SJU flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
St. Thomas Seaplane Base
Destination airport
Luis Munoz Marin Intl.
Distance
70 mi

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St. Thomas to San Juan Flights

The cheapest times to fly from St. Thomas to San Juan

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 St. Thomas to San Juan are during the month of . You can find some of the cheapest flights from St. Thomas to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Thomas to San Juan

Sunday is one of the best days to book for cheap flights from St. Thomas to San Juan: 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 St. Thomas to San Juan

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 St. Thomas to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 St. Thomas to San Juan 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 St. Thomas to San Juan 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.

 

St. Thomas to San Juan Flights

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*Available to One Key members.