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

Chicago → Philadelphia via Detroit: arrives on time 68%

  1. 09:17 MDW → 11:35 DTW
    DL 4674 · Delta, flown by Endeavor · 1h 18m · 84% on time, 0.0% cancelled
  2. 3h 18m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 14:53 DTW → 16:36 PHL
    DL 1391 · Delta · 1h 43m · 71% on time, 2.4% cancelled

Total trip 6h 19m, scheduled departure to arrival (Philadelphia is 1 h ahead of Chicago). Times are local. Both flew on 55 of the last 56 days.

Makes the connection98%The first flight arrived more than 153 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 3h 18m layover.
Arrives on time68%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (2.4% are) and within 15 minutes (71%).
Total trip6h 19mMDW 09:17 to PHL 16:36, 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.