Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Houston → Tucson via San Francisco: arrives on time 63%
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12:58 IAH → 15:03 SFOUA 2611 · United · 4h 05m · 78% on time, 0.0% cancelled
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1h 22m layover in San Francisco (SFO) · 45 min minimum on one ticket
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16:25 SFO → 19:26 TUSUA 5962 · United, flown by SkyWest · 2h 16m · 76% on time, 1.2% cancelled
Total trip 7h 43m, scheduled departure to arrival (Tucson is 2 h behind Houston). Times are local. Both flew on 0 of the last 56 days, too few to list among the best connections.
Makes the connection84%The first flight arrived more than 37 minutes late on 16% of the days it flew: too late for the 45-minute minimum connection on a 1h 22m layover.
Arrives on time63%First flight not cancelled (0.0% are) × connection made (84%) × second flight not cancelled (1.2% are) and within 15 minutes (76%).
Total trip7h 43mIAH 12:58 to TUS 19:26, 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.