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

Dulles → Rochester via Chicago: arrives on time 67%

  1. 10:31 IAD → 11:53 ORD
    UA 1252 · United · 2h 22m · 92% on time, 0.8% cancelled
  2. 2h 02m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 13:55 ORD → 16:45 ROC
    UA 1239 · United · 1h 50m · 71% on time, 1.8% cancelled

Total trip 6h 14m, scheduled departure to arrival. Times are local. Both flew on 48 of the last 56 days.

Makes the connection98%The first flight arrived more than 77 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 02m layover.
Arrives on time67%First flight not cancelled (0.8% are) × connection made (98%) × second flight not cancelled (1.8% are) and within 15 minutes (71%).
Total trip6h 14mIAD 10:31 to ROC 16:45, 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.