tailodds FORECAST
Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Boston → San Juan via Baltimore: arrives on time 22%

  1. 17:20 BOS → 19:10 BWI
    WN 1898 · Southwest · 1h 50m · 52% on time, 5.3% cancelled
  2. 1h 00m layover in Baltimore (BWI) · 45 min minimum on one ticket
  3. 20:10 BWI → 00:40 SJU +1 day
    WN 1104 · Southwest · 4h 05m · 46% on time, 0.0% cancelled

Total trip 6h 55m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.

Makes the connection52%The first flight arrived more than 15 minutes late on 48% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time22%First flight not cancelled (5.3% are) × connection made (52%) × second flight not cancelled (0.0% are) and within 15 minutes (46%).
Total trip6h 55mBOS 17:20 to SJU 00:40, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.