Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Raleigh/Durham via Dulles: arrives on time 58%
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23:20 SEA → 07:22 IADUA 264 · United · 5h 02m · 91% on time, 4.5% cancelled
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59m layover in Dulles (IAD) · 45 min minimum on one ticket
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08:21 IAD → 09:34 RDU +1 dayUA 529 · United · 1h 13m · 69% on time, 2.7% cancelled
Total trip 7h 14m, scheduled departure to arrival (Raleigh/Durham is 3 h ahead of Seattle). Times are local. Both flew on 32 of the last 56 days.
Makes the connection89%The first flight arrived more than 14 minutes late on 11% of the days it flew: too late for the 45-minute minimum connection on a 59m layover.
Arrives on time58%First flight not cancelled (4.5% are) × connection made (89%) × second flight not cancelled (2.7% are) and within 15 minutes (69%).
Total trip7h 14mSEA 23:20 to RDU 09:34, 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.