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

Chicago → Ontario via Seattle: arrives on time 70%

  1. 06:00 ORD → 08:38 SEA
    AS 715 · Alaska · 4h 38m · 81% on time, 0.8% cancelled
  2. 1h 47m layover in Seattle (SEA) · 45 min minimum on one ticket
  3. 10:25 SEA → 13:09 ONT
    AS 565 · Alaska · 2h 44m · 76% on time, 2.2% cancelled

Total trip 9h 09m, scheduled departure to arrival (Ontario is 2 h behind Chicago). Times are local. Both flew on 46 of the last 56 days.

Makes the connection95%The first flight arrived more than 62 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 1h 47m layover.
Arrives on time70%First flight not cancelled (0.8% are) × connection made (95%) × second flight not cancelled (2.2% are) and within 15 minutes (76%).
Total trip9h 09mORD 06:00 to ONT 13:09, 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.