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

Buffalo → Chicago via Dulles: arrives on time 83%

  1. 06:15 BUF → 07:34 IAD
    UA 3668 · United, flown by Republic · 1h 19m · 90% on time, 4.8% cancelled
  2. 2h 57m layover in Dulles (IAD) · 45 min minimum on one ticket
  3. 10:31 IAD → 11:53 ORD
    UA 1252 · United · 2h 22m · 92% on time, 0.8% cancelled

Total trip 6h 38m, scheduled departure to arrival (Chicago is 1 h behind Buffalo). Times are local. Both flew on 21 of the last 56 days.

Makes the connection95%The first flight arrived more than 132 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 2h 57m layover.
Arrives on time83%First flight not cancelled (4.8% are) × connection made (95%) × second flight not cancelled (0.8% are) and within 15 minutes (92%).
Total trip6h 38mBUF 06:15 to ORD 11:53, 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.