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

Dulles → San Juan via Atlanta: arrives on time 56%

  1. 15:02 IAD → 16:54 ATL
    DL 2135 · Delta · 1h 52m · 73% on time, 0.0% cancelled
  2. 1h 51m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 18:45 ATL → 22:29 SJU
    DL 1861 · Delta · 3h 44m · 67% on time, 1.7% cancelled

Total trip 7h 27m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.

Makes the connection85%The first flight arrived more than 66 minutes late on 15% of the days it flew: too late for the 45-minute minimum connection on a 1h 51m layover.
Arrives on time56%First flight not cancelled (0.0% are) × connection made (85%) × second flight not cancelled (1.7% are) and within 15 minutes (67%).
Total trip7h 27mIAD 15:02 to SJU 22:29, 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.