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

Chicago → Baltimore via Houston: arrives on time 78%

  1. 07:35 ORD → 10:36 IAH
    UA 1231 · United · 3h 01m · 91% on time, 1.3% cancelled
  2. 1h 40m layover in Houston (IAH) · 45 min minimum on one ticket
  3. 12:16 IAH → 16:30 BWI
    UA 1720 · United · 3h 14m · 81% on time, 0.0% cancelled

Total trip 7h 55m, scheduled departure to arrival (Baltimore is 1 h ahead of Chicago). Times are local. Both flew on 56 of the last 56 days.

Makes the connection97%The first flight arrived more than 55 minutes late on 3% of the days it flew: too late for the 45-minute minimum connection on a 1h 40m layover.
Arrives on time78%First flight not cancelled (1.3% are) × connection made (97%) × second flight not cancelled (0.0% are) and within 15 minutes (81%).
Total trip7h 55mORD 07:35 to BWI 16:30, 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.