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

Washington → Ontario via Chicago: arrives on time 52%

  1. 15:30 DCA → 16:52 ORD
    UA 1325 · United · 2h 22m · 66% on time, 4.7% cancelled
  2. 3h 26m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 20:18 ORD → 22:51 ONT
    UA 658 · United · 4h 33m · 60% on time, 2.5% cancelled

Total trip 10h 21m, scheduled departure to arrival (Ontario is 3 h behind Washington). Times are local. Both flew on 52 of the last 56 days.

Makes the connection94%The first flight arrived more than 161 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 3h 26m layover.
Arrives on time52%First flight not cancelled (4.7% are) × connection made (94%) × second flight not cancelled (2.5% are) and within 15 minutes (60%).
Total trip10h 21mDCA 15:30 to ONT 22:51, 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.