$69 Cheap Delta flights Boston (BOS) to Miami (MIA)

Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap Delta Air Lines round-trip flights from $117 from BOS to MIA. Affordable one-way options from $69 are available too.**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.

Search for cheap Delta Air Lines flights from Logan Intl. Airport (BOS) to Miami Intl. Airport (MIA) one to three months prior to your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the best day of the week to book a domestic flight is usually Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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.

The first flight from BOS to MIA with Delta Air Lines leaves at 7:05AM UTC-5. You'll touch down at 10:55AM UTC-5. The last Delta Air Lines flight of the day takes off at 4:40PM UTC-5 and arrives at 8:31PM UTC-5. With 20% fewer cancellations for departures before midday, heading out early is often the smartest option.**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.

Delta Air Lines makes flying from BOS to MIA enjoyable with an excellent in-flight experience and a rewarding loyalty program. You could even start collecting points with Delta SkyMiles. Be sure to join Expedia's free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.