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

Chicago → San Antonio via Houston: arrives on time 43%

  1. 17:45 ORD → 20:50 IAH
    UA 1954 · United · 3h 05m · 77% on time, 1.4% cancelled
  2. 50m layover in Houston (IAH) · 45 min minimum on one ticket
  3. 21:40 IAH → 22:42 SAT
    UA 2198 · United · 1h 02m · 69% on time, 1.0% cancelled

Total trip 4h 57m, scheduled departure to arrival. Times are local. Both flew on 55 of the last 56 days.

Makes the connection65%The first flight arrived more than 5 minutes late on 35% of the days it flew: too late for the 45-minute minimum connection on a 50m layover.
Arrives on time43%First flight not cancelled (1.4% are) × connection made (65%) × second flight not cancelled (1.0% are) and within 15 minutes (69%).
Total trip4h 57mORD 17:45 to SAT 22:42, 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.