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

Chicago → San Juan via Denver: arrives on time 83%

  1. 05:00 ORD → 06:42 DEN
    UA 2666 · United · 2h 42m · 98% on time, 0.6% cancelled
  2. 3h 01m layover in Denver (DEN) · 45 min minimum on one ticket
  3. 09:43 DEN → 17:38 SJU
    UA 1339 · United · 5h 55m · 84% on time, 0.3% cancelled

Total trip 11h 38m, scheduled departure to arrival (San Juan is 1 h ahead of Chicago). Times are local. Both flew on 56 of the last 56 days.

Makes the connection100%The first flight arrived more than 136 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 3h 01m layover.
Arrives on time83%First flight not cancelled (0.6% are) × connection made (100%) × second flight not cancelled (0.3% are) and within 15 minutes (84%).
Total trip11h 38mORD 05:00 to SJU 17:38, 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.