Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → Houston via Denver: arrives on time 51%
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16:07 SAN → 19:39 DENUA 682 · United · 2h 32m · 77% on time, 1.1% cancelled
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49m layover in Denver (DEN) · 45 min minimum on one ticket
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20:28 DEN → 23:59 IAHUA 2419 · United · 2h 31m · 80% on time, 0.0% cancelled
Total trip 5h 52m, scheduled departure to arrival (Houston is 2 h ahead of San Diego). Times are local. Both flew on 54 of the last 56 days.
Makes the connection65%The first flight arrived more than 4 minutes late on 35% of the days it flew: too late for the 45-minute minimum connection on a 49m layover.
Arrives on time51%First flight not cancelled (1.1% are) × connection made (65%) × second flight not cancelled (0.0% are) and within 15 minutes (80%).
Total trip5h 52mSAN 16:07 to IAH 23:59, 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.