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

Detroit → San Francisco via Boston: arrives on time 32%

  1. 17:57 DTW → 20:00 BOS
    DL 1707 · Delta · 2h 03m · 57% on time, 3.0% cancelled
  2. 55m layover in Boston (BOS) · 45 min minimum on one ticket
  3. 20:55 BOS → 00:33 SFO +1 day
    DL 2919 · Delta · 6h 38m · 66% on time, 1.5% cancelled

Total trip 9h 36m, scheduled departure to arrival (San Francisco is 3 h behind Detroit). Times are local. Both flew on 21 of the last 56 days.

Makes the connection50%The first flight arrived more than 10 minutes late on 50% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time32%First flight not cancelled (3.0% are) × connection made (50%) × second flight not cancelled (1.5% are) and within 15 minutes (66%).
Total trip9h 36mDTW 17:57 to SFO 00:33, 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.