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

Chicago → Ontario via Dallas-Fort Worth: arrives on time 40%

  1. 14:59 ORD → 17:36 DFW
    AA 2257 · American · 2h 36m · 65% on time, 2.7% cancelled
  2. 1h 14m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
  3. 18:50 DFW → 19:59 ONT
    AA 2236 · American · 3h 09m · 62% on time, 4.2% cancelled

Total trip 7h 00m, scheduled departure to arrival (Ontario is 2 h behind Chicago). Times are local. Both flew on 56 of the last 56 days.

Makes the connection69%The first flight arrived more than 29 minutes late on 31% of the days it flew: too late for the 45-minute minimum connection on a 1h 14m layover.
Arrives on time40%First flight not cancelled (2.7% are) × connection made (69%) × second flight not cancelled (4.2% are) and within 15 minutes (62%).
Total trip7h 00mORD 14:59 to ONT 19:59, 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.