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

San Francisco → Portland via Seattle: arrives on time 42%

  1. 12:27 SFO → 14:35 SEA
    AS 630 · Alaska · 2h 08m · 21% on time, 0.0% cancelled
  2. 1h 20m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 15:55 SEA → 16:55 PDX
    AS 686 · Alaska · 1h 00m · 73% on time, 0.0% cancelled

Total trip 4h 28m, scheduled departure to arrival. Times are local. Both flew on 52 of the last 56 days.

Makes the connection58%The first flight arrived more than 35 minutes late on 42% of the days it flew: too late for the 45-minute minimum connection on a 1h 20m layover.
Arrives on time42%First flight not cancelled (0.0% are) × connection made (58%) × second flight not cancelled (0.0% are) and within 15 minutes (73%).
Total trip4h 28mSFO 12:27 to PDX 16:55, 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.