$180 Cheap Southwest Airlines flights San Juan (SJU) to Baltimore (BWI)

Scoring cheap one-way Southwest Airlines flights from SJU to BWI from $180 on Expedia is a cinch — just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares from $359 for your next exciting getaway.**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 discover affordable flights from SJU to BWI with Southwest Airlines, begin your search 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. Another useful 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 first Southwest Airlines flight from SJU to BWI takes off at 6:00AM UTC-4, arriving at 9:20AM UTC-5. If you prefer to set off later, the last Southwest Airlines flight leaves SJU at 4:30PM UTC-4 and touches down at BWI at 8:00PM UTC-5. Flying before noon is generally a wise choice as morning flights are 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.