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

Dallas-Fort Worth → Buffalo via Dulles: arrives on time 76%

  1. 07:20 DFW → 11:26 IAD
    UA 2639 · United · 3h 06m · 90% on time, 1.7% cancelled
  2. 1h 33m 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 05m, scheduled departure to arrival (Buffalo is 1 h ahead of Dallas-Fort Worth). Times are local. Both flew on 26 of the last 56 days.

Makes the connection96%The first flight arrived more than 48 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 1h 33m layover.
Arrives on time76%First flight not cancelled (1.7% are) × connection made (96%) × second flight not cancelled (2.6% are) and within 15 minutes (82%).
Total trip6h 05mDFW 07:20 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.