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

Chicago → Buffalo via Atlanta: arrives on time 76%

  1. 08:05 ORD → 11:08 ATL
    DL 2426 · Delta · 2h 03m · 85% on time, 4.8% cancelled
  2. 2h 52m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 14:00 ATL → 16:06 BUF
    DL 2266 · Delta · 2h 06m · 82% on time, 0.0% cancelled

Total trip 7h 01m, scheduled departure to arrival (Buffalo is 1 h ahead of Chicago). Times are local. Both flew on 42 of the last 56 days.

Makes the connection98%The first flight arrived more than 127 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 2h 52m layover.
Arrives on time76%First flight not cancelled (4.8% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (82%).
Total trip7h 01mORD 08:05 to BUF 16:06, 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.