Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → Charleston via Atlanta: arrives on time 76%
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17:17 IAD → 19:16 ATLUA 2081 · United · 1h 59m · 70% on time, 0.6% cancelled
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3h 54m layover in Atlanta (ATL) · 90 min minimum on separate tickets
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23:10 ATL → 00:36 CHS +1 dayDL 2850 · Delta · 1h 16m · 82% on time, 1.9% cancelled
Total trip 7h 09m, scheduled departure to arrival. Times are local. Both flew on 48 of the last 56 days.
Makes the connection96%The first flight arrived more than 144 minutes late on 4% of the days it flew: too late for the 90-minute minimum connection on a 3h 54m layover.
Arrives on time76%First flight not cancelled (0.6% are) × connection made (96%) × second flight not cancelled (1.9% are) and within 15 minutes (82%).
Total trip7h 09mIAD 17:17 to CHS 00:36, 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.