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

San Juan → Chicago via Atlanta: arrives on time 59%

  1. 17:56 SJU → 21:54 ATL
    DL 1946 · Delta · 3h 59m · 88% on time, 0.5% cancelled
  2. 56m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 22:50 ATL → 23:53 ORD
    DL 1199 · Delta · 2h 09m · 71% on time, 2.9% cancelled

Total trip 7h 03m, scheduled departure to arrival (Chicago is 1 h behind San Juan). Times are local. Both flew on 56 of the last 56 days.

Makes the connection85%The first flight arrived more than 11 minutes late on 15% of the days it flew: too late for the 45-minute minimum connection on a 56m layover.
Arrives on time59%First flight not cancelled (0.5% are) × connection made (85%) × second flight not cancelled (2.9% are) and within 15 minutes (71%).
Total trip7h 03mSJU 17:56 to ORD 23:53, 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.