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

Buffalo → San Juan via New York: arrives on time 57%

  1. 15:50 BUF → 17:30 JFK
    DL 5296 · Delta, flown by Endeavor · 1h 41m · 80% on time, 11.1% cancelled
  2. 1h 55m layover in New York (JFK) · 45 min minimum on one ticket
  3. 19:25 JFK → 23:43 SJU
    DL 1859 · Delta · 4h 18m · 70% on time, 2.2% cancelled

Total trip 7h 53m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.

Makes the connection94%The first flight arrived more than 70 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 55m layover.
Arrives on time57%First flight not cancelled (11.1% are) × connection made (94%) × second flight not cancelled (2.2% are) and within 15 minutes (70%).
Total trip7h 53mBUF 15:50 to SJU 23:43, layover included

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