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

Portland → Denver via Atlanta: arrives on time 87%

  1. 06:00 PWM → 08:45 ATL
    DL 1515 · Delta · 2h 45m · 94% on time, 1.2% cancelled
  2. 4h 05m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 12:50 ATL → 14:04 DEN
    DL 957 · Delta · 3h 14m · 89% on time, 0.0% cancelled

Total trip 10h 04m, scheduled departure to arrival (Denver is 2 h behind Portland). Times are local. Both flew on 55 of the last 56 days.

Makes the connection99%The first flight arrived more than 200 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 4h 05m layover.
Arrives on time87%First flight not cancelled (1.2% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (89%).
Total trip10h 04mPWM 06:00 to DEN 14:04, 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.