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

Seattle → St Louis via Detroit: arrives on time 67%

  1. 11:25 SEA → 18:41 DTW
    DL 1706 · Delta · 4h 16m · 79% on time, 1.3% cancelled
  2. 1h 19m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 20:00 DTW → 20:39 STL
    DL 1541 · Delta · 1h 39m · 78% on time, 1.6% cancelled

Total trip 7h 14m, scheduled departure to arrival (St Louis is 2 h ahead of Seattle). Times are local. Both flew on 56 of the last 56 days.

Makes the connection88%The first flight arrived more than 34 minutes late on 12% of the days it flew: too late for the 45-minute minimum connection on a 1h 19m layover.
Arrives on time67%First flight not cancelled (1.3% are) × connection made (88%) × second flight not cancelled (1.6% are) and within 15 minutes (78%).
Total trip7h 14mSEA 11:25 to STL 20:39, 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.