$126 Cheap Delta flights Buffalo (BUF) to San Juan (SJU)

Use the “Price (lowest to highest)” filter on Expedia to look for cheap Delta Air Lines return flights from $246 from BUF to SJU. Affordable one-way options from $126 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.

Browse for one-way or round-trip flights to San Juan in October or September. You could find lower fares with Delta Air Lines during these off-peak months.

To get affordable flights from BUF to SJU with Delta Air Lines, start searching about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another useful tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**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.

To find out if there’s a direct route from BUF to SJU with Delta Air Lines or other carriers, check the “Nonstop” filter when looking for flights.

Find Delta Air Lines’s earliest flights from BUF to SJU by checking our “Morning” and “Early Morning” filters. Not only will you get to your destination sooner, early departures also have a 20% less chance of being 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.

Get on a Delta Air Lines flight from Buffalo Niagara Intl. Airport (BUF) to San Juan, and you’ll most likely come in to Luis Munoz Marin Intl. Airport (SJU). This is the airline’s primary hub in this city.

Traveling from BUF to SJU with Delta Air Lines comes with a host of benefits, including an excellent in-flight experience and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to spend on select future travel purchases. That’s on top of the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making a booking, but your airline may charge a fee after that. For further information about altering your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to change your plans without additional charges, apply the “Changes included” and “No cancel fee” filters when planning your next getaway.