$159 Cheap Delta flights Boston (BOS) to St. Thomas (STT)

Make use of the “Price (lowest to highest)” filter on Expedia to look for cheap Delta Air Lines round-trip flights from $296 from BOS to STT. Affordable one-way fares from $159 are available as well.**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.

Delta Air Lines flights to St. Thomas are usually more affordable in the quieter months of September and October. Whether you need a return or one-way ticket, you could find a better deal then.

Check for Delta Air Lines flights from BOS to STT about one month before you want to go. The most affordable time to reserve an international flight is usually 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. No matter your itinerary or fare class, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Passengers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**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.

Enter your dates, press search and check the “Nonstop” filter on Expedia to find any direct flights from BOS to STT with Delta Air Lines or another airline.

Find Delta Air Lines’s earliest flights from BOS to STT by selecting our “Morning” and “Early Morning” filters. Not only will you get to your destination sooner, early departures are also 20% less likely to be canceled.**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.

Board a Delta Air Lines flight from Logan Intl. Airport (BOS) to St. Thomas, and you’ll probably come in to Cyril E. King Airport (STT). This is the airline’s main hub here.

Offering an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a popular option for many passengers heading from BOS to STT. Also, if you’re a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are generally free within 24 hours of making your booking, but your airline may charge a fee after that. For more details about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to update your itinerary without extra charges, tick the “Changes included” and “No cancel fee” filters when planning your next getaway.