Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Atlanta → Tucson via Houston: arrives on time 78%
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15:57 ATL → 17:23 IAHUA 3992 · United, flown by Mesa · 2h 26m · 72% on time, 0.0% cancelled
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2h 37m layover in Houston (IAH) · 45 min minimum on one ticket
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20:00 IAH → 20:42 TUSUA 4040 · United, flown by Mesa · 2h 42m · 83% on time, 0.0% cancelled
Total trip 7h 45m, scheduled departure to arrival (Tucson is 3 h behind Atlanta). Times are local. Both flew on 32 of the last 56 days.
Makes the connection93%The first flight arrived more than 112 minutes late on 7% of the days it flew: too late for the 45-minute minimum connection on a 2h 37m layover.
Arrives on time78%First flight not cancelled (0.0% are) × connection made (93%) × second flight not cancelled (0.0% are) and within 15 minutes (83%).
Total trip7h 45mATL 15:57 to TUS 20:42, 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.