Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Houston via Seattle: arrives on time 88%
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07:00 SFO → 09:22 SEAUA 1708 · United · 2h 22m · 92% on time, 0.0% cancelled
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2h 33m layover in Seattle (SEA) · 45 min minimum on one ticket
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11:55 SEA → 18:35 IAHUA 2293 · United · 4h 40m · 90% on time, 0.0% cancelled
Total trip 9h 35m, scheduled departure to arrival (Houston is 2 h ahead of San Francisco). Times are local. Both flew on 49 of the last 56 days.
Makes the connection98%The first flight arrived more than 108 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 2h 33m layover.
Arrives on time88%First flight not cancelled (0.0% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (90%).
Total trip9h 35mSFO 07:00 to IAH 18:35, 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.