Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Tucson → Houston via Chicago: arrives on time 65%
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07:20 TUS → 13:05 ORDUA 5266 · United, flown by SkyWest · 3h 45m · 73% on time, 5.4% cancelled
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1h 10m layover in Chicago (ORD) · 45 min minimum on one ticket
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14:15 ORD → 17:20 IAHUA 2451 · United · 3h 05m · 78% on time, 0.0% cancelled
Total trip 8h 00m, scheduled departure to arrival (Houston is 2 h ahead of Tucson). Times are local. Both flew on 37 of the last 56 days.
Makes the connection88%The first flight arrived more than 25 minutes late on 12% of the days it flew: too late for the 45-minute minimum connection on a 1h 10m layover.
Arrives on time65%First flight not cancelled (5.4% are) × connection made (88%) × second flight not cancelled (0.0% are) and within 15 minutes (78%).
Total trip8h 00mTUS 07:20 to IAH 17:20, 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.