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

Houston → Portland via Detroit: arrives on time 32%

  1. 15:27 IAH → 19:15 DTW
    DL 1865 · Delta · 2h 48m · 67% on time, 0.0% cancelled
  2. 49m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 20:04 DTW → 21:50 PDX
    DL 913 · Delta · 4h 45m · 60% on time, 1.8% cancelled

Total trip 8h 22m, scheduled departure to arrival (Portland is 2 h behind Houston). Times are local. Both flew on 27 of the last 56 days.

Makes the connection54%The first flight arrived more than 4 minutes late on 46% of the days it flew: too late for the 45-minute minimum connection on a 49m layover.
Arrives on time32%First flight not cancelled (0.0% are) × connection made (54%) × second flight not cancelled (1.8% are) and within 15 minutes (60%).
Total trip8h 22mIAH 15:27 to PDX 21:50, 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.