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

Portland → Detroit via Atlanta: arrives on time 49%

  1. 18:59 PWM → 21:56 ATL
    DL 488 · Delta · 2h 58m · 68% on time, 4.4% cancelled
  2. 1h 03m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 22:59 ATL → 00:59 DTW +1 day
    DL 2940 · Delta · 2h 00m · 73% on time, 0.8% cancelled

Total trip 6h 00m, scheduled departure to arrival. Times are local. Both flew on 47 of the last 56 days.

Makes the connection71%The first flight arrived more than 18 minutes late on 29% of the days it flew: too late for the 45-minute minimum connection on a 1h 03m layover.
Arrives on time49%First flight not cancelled (4.4% are) × connection made (71%) × second flight not cancelled (0.8% are) and within 15 minutes (73%).
Total trip6h 00mPWM 18:59 to DTW 00:59, 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.