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

Denver → San Antonio via Houston: arrives on time 56%

  1. 15:35 DEN → 19:10 IAH
    UA 489 · United · 2h 35m · 78% on time, 0.0% cancelled
  2. 55m layover in Houston (IAH) · 45 min minimum on one ticket
  3. 20:05 IAH → 21:13 SAT
    UA 1542 · United · 1h 08m · 77% on time, 0.3% cancelled

Total trip 4h 38m, scheduled departure to arrival (San Antonio is 1 h ahead of Denver). Times are local. Both flew on 56 of the last 56 days.

Makes the connection72%The first flight arrived more than 10 minutes late on 28% of the days it flew: too late for the 45-minute minimum connection on a 55m layover.
Arrives on time56%First flight not cancelled (0.0% are) × connection made (72%) × second flight not cancelled (0.3% are) and within 15 minutes (77%).
Total trip4h 38mDEN 15:35 to SAT 21:13, 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.