$55 Cheap Spirit Airlines flights Detroit (DTW) to Boston (BOS)

Apply the "Price (lowest to highest)" filter on Expedia to search for cheap Spirit Airlines return flights from $110 from DTW to BOS. Affordable one-way tickets from $55 are also on offer.**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.

For cheap Spirit Airlines fares from Detroit Metropolitan Wayne County Airport (DTW) 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 what you pay. Sunday is usually the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight 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.

The earliest Spirit Airlines flight from DTW to BOS departs at 12:53PM UTC-5, touching down at 2:45PM UTC-5. If you prefer to head off later, the last Spirit Airlines flight leaves DTW at 12:53PM UTC-5 and lands at BOS at 2:45PM UTC-5. Flying earlier is often a good idea as morning and mid-morning flights are 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.

Depart from DTW to BOS with Spirit Airlines and look forward to a range of benefits starting with a rewarding loyalty program. When booking through Expedia as a Free Spirit and One Key™ member, you could also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.