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

Miami → San Antonio via Chicago: arrives on time 35%

  1. 16:10 MIA → 18:53 ORD
    UA 2106 · United · 3h 43m · 59% on time, 0.6% cancelled
  2. 1h 05m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 19:58 ORD → 22:57 SAT
    UA 1394 · United · 2h 59m · 57% on time, 2.2% cancelled

Total trip 7h 47m, scheduled departure to arrival (San Antonio is 1 h behind Miami). Times are local. Both flew on 56 of the last 56 days.

Makes the connection64%The first flight arrived more than 20 minutes late on 36% of the days it flew: too late for the 45-minute minimum connection on a 1h 05m layover.
Arrives on time35%First flight not cancelled (0.6% are) × connection made (64%) × second flight not cancelled (2.2% are) and within 15 minutes (57%).
Total trip7h 47mMIA 16:10 to SAT 22:57, 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.