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

Denver → San Juan via Houston: arrives on time 91%

  1. 07:42 DEN → 11:15 IAH
    UA 1720 · United · 2h 33m · 92% on time, 0.3% cancelled
  2. 3h 48m layover in Houston (IAH) · 45 min minimum on one ticket
  3. 15:03 IAH → 20:38 SJU
    UA 701 · United · 4h 35m · 91% on time, 0.3% cancelled

Total trip 10h 56m, scheduled departure to arrival (San Juan is 2 h ahead of Denver). Times are local. Both flew on 56 of the last 56 days.

Makes the connection100%The first flight arrived more than 183 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 3h 48m layover.
Arrives on time91%First flight not cancelled (0.3% are) × connection made (100%) × second flight not cancelled (0.3% are) and within 15 minutes (91%).
Total trip10h 56mDEN 07:42 to SJU 20:38, 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.