$76 Cheap Spirit Airlines flights Baltimore (BWI) to San Juan (SJU)

You'll discover cheap return Spirit Airlines flights from $153 from BWI to SJU by sorting your results from "Price (lowest to highest)" on Expedia. Or look for deals from $76 for a one-way trip.**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 affordable flights from BWI to SJU with Spirit Airlines, start searching about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Want another tip? Booking on Sunday offers 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.

The earliest flight from BWI to SJU with Spirit Airlines leaves at 8:10PM UTC-5. You'll touch down at 12:57AM UTC-4. The last Spirit Airlines flight of the day takes off at 8:10PM UTC-5 and arrives at 12:57AM UTC-4. With approximately 20% fewer cancellations for departures before midday, heading out early is often the smartest choice.**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.

Offering a rewarding loyalty program, Spirit Airlines is a top pick for many passengers journeying from BWI to SJU. Plus, as a Free Spirit and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.