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

Portland → Denver via Seattle: arrives on time 60%

  1. 06:19 PDX → 07:17 SEA
    AS 499 · Alaska · 58m · 93% on time, 1.0% cancelled
  2. 47m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 08:04 SEA → 11:56 DEN
    AS 375 · Alaska · 2h 52m · 88% on time, 1.9% cancelled

Total trip 4h 37m, scheduled departure to arrival (Denver is 1 h ahead of Portland). Times are local. Both flew on 52 of the last 56 days.

Makes the connection70%The first flight arrived more than 2 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 47m layover.
Arrives on time60%First flight not cancelled (1.0% are) × connection made (70%) × second flight not cancelled (1.9% are) and within 15 minutes (88%).
Total trip4h 37mPDX 06:19 to DEN 11:56, 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.