Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Dulles via Chicago: arrives on time 86%
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23:11 SEA → 05:18 ORDUA 747 · United · 4h 07m · 86% on time, 0.3% cancelled
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1h 12m layover in Chicago (ORD) · 45 min minimum on one ticket
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06:30 ORD → 09:24 IAD +1 dayUA 1689 · United · 1h 54m · 100% on time, 1.4% cancelled
Total trip 7h 13m, scheduled departure to arrival (Dulles is 3 h ahead of Seattle). Times are local. Both flew on 55 of the last 56 days.
Makes the connection88%The first flight arrived more than 27 minutes late on 12% of the days it flew: too late for the 45-minute minimum connection on a 1h 12m layover.
Arrives on time86%First flight not cancelled (0.3% are) × connection made (88%) × second flight not cancelled (1.4% are) and within 15 minutes (100%).
Total trip7h 13mSEA 23:11 to IAD 09:24, 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.