Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Charleston → Houston via Atlanta: arrives on time 86%
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08:20 CHS → 09:34 ATLDL 789 · Delta · 1h 14m · 98% on time, 1.2% cancelled
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2h 03m layover in Atlanta (ATL) · 90 min minimum on separate tickets
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11:37 ATL → 12:47 IAHUA 425 · United · 2h 10m · 89% on time, 0.0% cancelled
Total trip 5h 27m, scheduled departure to arrival (Houston is 1 h behind Charleston). Times are local. Both flew on 50 of the last 56 days.
Makes the connection98%The first flight arrived more than 33 minutes late on 2% of the days it flew: too late for the 90-minute minimum connection on a 2h 03m layover.
Arrives on time86%First flight not cancelled (1.2% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (89%).
Total trip5h 27mCHS 08:20 to IAH 12:47, 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.