$142 Cheap Delta flights Boston (BOS) to San Juan (SJU)

You can discover cheap round-trip Delta Air Lines flights from $205 from BOS to SJU by organizing your results from “Price (lowest to highest)” on Expedia. Or search for deals from $142 for a one-way journey.**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 San Juan are typically cheaper in the off-peak months of October and September. Whether you’re in search of a return or one-way ticket, you could score a better deal then.

Search for Delta Air Lines flights from BOS to SJU about one month before you want to go. The most affordable time to reserve an international flight is generally 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. Regardless of itinerary and fare class, the best day of the week to book international airfare is usually Sunday. Friday can be the most expensive. Passengers who book on a Sunday can save 17% on average 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.

Easily travel from Logan Intl. Airport (BOS) to Luis Munoz Marin Intl. Airport (SJU) on any of Delta Air Lines’s 8 weekly direct flights. Use our “Nonstop” and “Airline” filters to find the Delta Air Lines flight that’ll take you to SJU at a time that suits you.

It takes approximately 4h 7m to fly nonstop from Logan Intl. Airport (BOS) to Luis Munoz Marin Intl. Airport (SJU) with Delta Air Lines.

Friday has the most Delta Air Lines flights from Logan Intl. Airport (BOS) to Luis Munoz Marin Intl. Airport (SJU). With 2 daily departures, this is the best day of the week to find something that will work for your schedule.

Leaving BOS at 8:10AM UTC-5, the first Delta Air Lines flight to SJU lands at 1:18PM UTC-4. Flying early means you’re less likely to experience cancellations.* Don’t like early starts? The last Delta Air Lines flight from BOS to SJU departs at 10:55AM UTC-5 and touches down at 3:57PM UTC-4.*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.

Luis Munoz Marin Intl. Airport (SJU) is the primary San Juan hub for Delta Air Lines flights from Logan Intl. Airport (BOS).

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 SJU. What’s more, if you’re a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be put toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Most likely, you’ll be on an Airbus A321neo for your Delta Air Lines flight from Logan Intl. Airport (BOS) to Luis Munoz Marin Intl. Airport (SJU). However, you could be switched to an alternative aircraft for operational reasons.

Changes are typically free within 24 hours of making a booking, but your airline may charge a fee after that time. For further details about modifying your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to update your itinerary without additional charges, tick the “No cancel fee” or “Changes included” filter when organizing your next trip.