Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → San Juan via Dulles: arrives on time 52%
-
12:13 IAH → 16:30 IADUA 2366 · United · 3h 17m · 82% on time, 0.3% cancelled
-
54m layover in Dulles (IAD) · 45 min minimum on one ticket
-
17:24 IAD → 21:24 SJUUA 2025 · United · 4h 00m · 73% on time, 0.4% cancelled
Total trip 8h 11m, scheduled departure to arrival (San Juan is 1 h ahead of Houston). Times are local. Both flew on 56 of the last 56 days.
Makes the connection72%The first flight arrived more than 9 minutes late on 28% of the days it flew: too late for the 45-minute minimum connection on a 54m layover.
Arrives on time52%First flight not cancelled (0.3% are) × connection made (72%) × second flight not cancelled (0.4% are) and within 15 minutes (73%).
Total trip8h 11mIAH 12:13 to SJU 21:24, 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.