Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Raleigh/Durham → Seattle via Dulles: arrives on time 89%
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06:00 RDU → 07:11 IADUA 1789 · United · 1h 11m · 96% on time, 1.8% cancelled
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1h 49m 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 8h 51m, scheduled departure to arrival (Seattle is 3 h behind Raleigh/Durham). Times are local. Both flew on 48 of the last 56 days.
Makes the connection99%The first flight arrived more than 64 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 1h 49m layover.
Arrives on time89%First flight not cancelled (1.8% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (91%).
Total trip8h 51mRDU 06:00 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.