$94 Cheap United flights Miami (MIA) to Boston (BOS)

Landing cheap one-way United Airlines flights from MIA to BOS from $94 on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $133 for your next adventure.**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 return or one-way flights to Boston in January or February. You could find lower fares with United Airlines during these off-peak travel months.

For cheap United Airlines fares from Miami Intl. Airport (MIA) to Logan Intl. Airport (BOS), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the price you pay. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**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 figure out if there’s a direct trip from MIA to BOS with United Airlines or any other airlines, use our “Nonstop” filter when looking for tickets.

To find the earliest departure from MIA to BOS with United Airlines, filter your results by “Early Morning” and “Morning.” Booking an early flight usually means cancellations are less likely.**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 United Airlines flight from Miami Intl. Airport (MIA) to Boston, and you’re most likely to land at Logan Intl. Airport (BOS). This is the airline’s primary hub in this destination.

Journey from MIA to BOS with United Airlines and you’ll enjoy a host of benefits starting with a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you may also earn OneKeyCash™* to spend on select 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 booking, but your airline may charge a fee after that. For more details about modifying your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to change your itinerary without extra charges, check the “Changes included” or “No cancel fee” filter when organizing your next getaway.