Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → New York via Houston: arrives on time 73%
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00:45 SFO → 06:34 IAHUA 604 · United · 3h 49m · 83% on time, 0.0% cancelled
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1h 31m layover in Houston (IAH) · 45 min minimum on one ticket
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08:05 IAH → 12:40 LGAUA 2133 · United · 3h 35m · 80% on time, 2.7% cancelled
Total trip 8h 55m, scheduled departure to arrival (New York is 3 h ahead of San Francisco). Times are local. Both flew on 37 of the last 56 days.
Makes the connection94%The first flight arrived more than 46 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 31m layover.
Arrives on time73%First flight not cancelled (0.0% are) × connection made (94%) × second flight not cancelled (2.7% are) and within 15 minutes (80%).
Total trip8h 55mSFO 00:45 to LGA 12:40, 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.