Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Atlanta → Seattle via Dulles: arrives on time 89%
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05:30 ATL → 07:20 IADUA 641 · United · 1h 50m · 96% on time, 1.0% cancelled
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1h 40m layover in Dulles (IAD) · 45 min minimum on one ticket
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09:00 IAD → 11:51 SEAUA 2101 · United · 5h 51m · 91% on time, 0.0% cancelled
Total trip 9h 21m, scheduled departure to arrival (Seattle is 3 h behind Atlanta). Times are local. Both flew on 50 of the last 56 days.
Makes the connection98%The first flight arrived more than 55 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 1h 40m layover.
Arrives on time89%First flight not cancelled (1.0% are) × connection made (98%) × second flight not cancelled (0.0% are) and within 15 minutes (91%).
Total trip9h 21mATL 05:30 to SEA 11:51, 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.