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

Chicago → San Jose via Atlanta: arrives on time 80%

  1. 05:30 ORD → 08:33 ATL
    DL 1264 · Delta · 2h 03m · 91% on time, 1.6% cancelled
  2. 1h 07m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 09:40 ATL → 11:36 SJC
    DL 809 · Delta · 4h 56m · 90% on time, 1.1% cancelled

Total trip 8h 06m, scheduled departure to arrival (San Jose is 2 h behind Chicago). Times are local. Both flew on 56 of the last 56 days.

Makes the connection91%The first flight arrived more than 22 minutes late on 9% of the days it flew: too late for the 45-minute minimum connection on a 1h 07m layover.
Arrives on time80%First flight not cancelled (1.6% are) × connection made (91%) × second flight not cancelled (1.1% are) and within 15 minutes (90%).
Total trip8h 06mORD 05:30 to SJC 11:36, 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.