$60 Cheap Spirit Airlines flights San Diego (SAN) to Detroit (DTW)

Use the "Price (lowest to highest)" filter on Expedia to search for cheap Spirit Airlines round-trip flights from $119 from SAN to DTW. Affordable one-way tickets from $60 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.

To find cheap Spirit Airlines fares from San Diego Intl. Airport (SAN) to Detroit Metropolitan Wayne County Airport (DTW), start searching one to three months before your planned 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 how much you pay. Sunday tends to be 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.

Filter your results by "Morning" and "Early Morning" to see the earliest flights from SAN to DTW. Jetting off early means flight 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.

A rewarding loyalty program and the ability to rack up points through Free Spirit are the start of the reasons to travel from SAN to DTW with Spirit Airlines. Plus, when you join Expedia's free One Key™ program, you can receive OneKeyCash™* in addition to any airline loyalty program earnings. It's yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.