$303 Cheap American Airlines flights Philadelphia (PHL) to St. Thomas (STT)

Apply the “Price (lowest to highest)” filter on Expedia to look for cheap American Airlines round-trip flights from $550 from PHL to STT. Affordable one-way tickets from $303 are also available.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

American Airlines flights to St. Thomas tend to be more affordable in the off-peak months of September and October. Whether you’re after a round-trip or one-way ticket, you could land a better deal then.

Landing the best American Airlines deals from PHL to STT often comes down to booking at the right moment. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. What’s more, you can pocket 17% on average by buying your fare on a Sunday rather than a Friday, which is usually the most expensive day to book.* It’s smart to kick off your flight search about one month before your travel dates.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Easily travel from Philadelphia Intl. Airport (PHL) to Cyril E. King Airport (STT) on any of American Airlines’s 7 direct weekly flights. Use Expedia’s “Nonstop” and “Airline” filters to find the American Airlines flight that’ll land at STT at your preferred time.

It takes approximately 4h to fly nonstop from Philadelphia Intl. Airport (PHL) to Cyril E. King Airport (STT) with American Airlines.

The earliest American Airlines flight from PHL to STT departs at 8:29AM UTC-5, arriving at 1:29PM UTC-4. If you’d like to jet off later in the day, the last American Airlines flight leaves PHL at 8:29AM UTC-5 and lands at STT at 1:29PM UTC-4. Flying before noon is often a good idea as morning flights are least likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

American Airlines flights from Philadelphia Intl. Airport (PHL) to St. Thomas arrive at Cyril E. King Airport (STT). This is the main entry point to this destination.

Catch an American Airlines flight from Philadelphia Intl. Airport (PHL) to Cyril E. King Airport (STT), and you’ll probably be on an Airbus A319. Keep in mind though, that the aircraft type can change due to operational needs.

Depending on the type of ticket you purchased, a fee will generally apply if you cancel or change your flight more than 24 hours after it’s been confirmed. To find plane tickets with more flexibility, select our “Changes included” or “No cancel fee” filter when you look for flights. For additional information on canceling or modifying your reservation, visit “Trips,” select your flight and tick “Manage Booking.”