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

Denver → Buffalo via Chicago: arrives on time 51%

  1. 13:25 DEN → 17:05 ORD
    UA 617 · United · 2h 40m · 68% on time, 1.4% cancelled
  2. 1h 12m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 18:17 ORD → 21:03 BUF
    UA 1335 · United · 1h 46m · 66% on time, 1.6% cancelled

Total trip 5h 38m, scheduled departure to arrival (Buffalo is 2 h ahead of Denver). Times are local. Both flew on 25 of the last 56 days.

Makes the connection79%The first flight arrived more than 27 minutes late on 21% of the days it flew: too late for the 45-minute minimum connection on a 1h 12m layover.
Arrives on time51%First flight not cancelled (1.4% are) × connection made (79%) × second flight not cancelled (1.6% are) and within 15 minutes (66%).
Total trip5h 38mDEN 13:25 to BUF 21:03, 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.