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

St Louis → San Francisco via Detroit: arrives on time 66%

  1. 06:30 STL → 09:04 DTW
    DL 1626 · Delta · 1h 34m · 92% on time, 2.3% cancelled
  2. 3h 11m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 12:15 DTW → 14:16 SFO
    DL 469 · Delta · 5h 01m · 70% on time, 1.0% cancelled

Total trip 9h 46m, scheduled departure to arrival (San Francisco is 2 h behind St Louis). Times are local. Both flew on 56 of the last 56 days.

Makes the connection97%The first flight arrived more than 146 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 3h 11m layover.
Arrives on time66%First flight not cancelled (2.3% are) × connection made (97%) × second flight not cancelled (1.0% are) and within 15 minutes (70%).
Total trip9h 46mSTL 06:30 to SFO 14:16, 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.