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

San Francisco → Ontario via Seattle: arrives on time 39%

  1. 17:38 SFO → 19:47 SEA
    AS 758 · Alaska · 2h 09m · 73% on time, 0.4% cancelled
  2. 46m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 20:33 SEA → 23:11 ONT
    AS 489 · Alaska · 2h 38m · 71% on time, 0.5% cancelled

Total trip 5h 33m, scheduled departure to arrival. Times are local. Both flew on 48 of the last 56 days.

Makes the connection55%The first flight arrived more than 1 minutes late on 45% of the days it flew: too late for the 45-minute minimum connection on a 46m layover.
Arrives on time39%First flight not cancelled (0.4% are) × connection made (55%) × second flight not cancelled (0.5% are) and within 15 minutes (71%).
Total trip5h 33mSFO 17:38 to ONT 23:11, 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.