Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Francisco → Houston via Dallas-Fort Worth: arrives on time 28%
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14:03 SFO → 19:59 DFWAA 2387 · American · 3h 56m · 50% on time, 3.0% cancelled
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1h 11m layover in Dallas-Fort Worth (DFW) · 45 min minimum on one ticket
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21:10 DFW → 22:24 IAHAA 2209 · American · 1h 14m · 48% on time, 2.9% cancelled
Total trip 6h 21m, scheduled departure to arrival (Houston is 2 h ahead of San Francisco). Times are local. Both flew on 50 of the last 56 days.
Makes the connection62%The first flight arrived more than 26 minutes late on 38% of the days it flew: too late for the 45-minute minimum connection on a 1h 11m layover.
Arrives on time28%First flight not cancelled (3.0% are) × connection made (62%) × second flight not cancelled (2.9% are) and within 15 minutes (48%).
Total trip6h 21mSFO 14:03 to IAH 22:24, 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.