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

Ontario → Chicago via Dallas: arrives on time 20%

  1. 16:20 ONT → 21:15 DAL
    WN 3247 · Southwest · 2h 55m · 58% on time, 0.0% cancelled
  2. 1h 07m layover in Dallas (DAL) · 45 min minimum on one ticket
  3. 22:22 DAL → 01:00 MDW +1 day
    WN 1359 · Southwest · 2h 15m · 34% on time, 6.0% cancelled

Total trip 6h 17m, scheduled departure to arrival (Chicago is 2 h ahead of Ontario). Times are local. Both flew on 24 of the last 56 days.

Makes the connection62%The first flight arrived more than 22 minutes late on 38% of the days it flew: too late for the 45-minute minimum connection on a 1h 07m layover.
Arrives on time20%First flight not cancelled (0.0% are) × connection made (62%) × second flight not cancelled (6.0% are) and within 15 minutes (34%).
Total trip6h 17mONT 16:20 to MDW 01:00, 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.