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

Ontario → San Francisco via Seattle: arrives on time 66%

  1. 12:04 ONT → 14:44 SEA
    AS 654 · Alaska · 2h 40m · 90% on time, 3.9% cancelled
  2. 1h 52m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 16:36 SEA → 18:48 SFO
    AS 1385 · Alaska · 2h 12m · 71% on time, 1.3% cancelled

Total trip 6h 44m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.

Makes the connection98%The first flight arrived more than 67 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 1h 52m layover.
Arrives on time66%First flight not cancelled (3.9% are) × connection made (98%) × second flight not cancelled (1.3% are) and within 15 minutes (71%).
Total trip6h 44mONT 12:04 to SFO 18:48, 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.