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

San Francisco → San Antonio via Detroit: arrives on time 52%

  1. 11:39 SFO → 19:14 DTW
    DL 361 · Delta · 4h 33m · 78% on time, 0.7% cancelled
  2. 56m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 20:10 DTW → 22:21 SAT
    DL 1365 · Delta · 3h 11m · 72% on time, 1.4% cancelled

Total trip 8h 42m, scheduled departure to arrival (San Antonio is 2 h ahead of San Francisco). Times are local. Both flew on 56 of the last 56 days.

Makes the connection74%The first flight arrived more than 11 minutes late on 26% of the days it flew: too late for the 45-minute minimum connection on a 56m layover.
Arrives on time52%First flight not cancelled (0.7% are) × connection made (74%) × second flight not cancelled (1.4% are) and within 15 minutes (72%).
Total trip8h 42mSFO 11:39 to SAT 22:21, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.