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

Chicago → Buffalo via Dulles: arrives on time 79%

  1. 06:30 ORD → 09:24 IAD
    UA 1689 · United · 1h 54m · 100% on time, 1.4% cancelled
  2. 3h 35m layover in Dulles (IAD) · 45 min minimum on one ticket
  3. 12:59 IAD → 14:25 BUF
    UA 4335 · United, flown by CommuteAir · 1h 26m · 82% on time, 2.6% cancelled

Total trip 6h 55m, scheduled departure to arrival (Buffalo is 1 h ahead of Chicago). Times are local. Both flew on 37 of the last 56 days.

Makes the connection100%The first flight arrived more than 170 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 3h 35m layover.
Arrives on time79%First flight not cancelled (1.4% are) × connection made (100%) × second flight not cancelled (2.6% are) and within 15 minutes (82%).
Total trip6h 55mORD 06:30 to BUF 14:25, 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.