Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → Seattle via Los Angeles: arrives on time 83%
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13:10 IAD → 15:42 LAXUA 1689 · United · 5h 32m · 90% on time, 0.5% cancelled
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3h 25m layover in Los Angeles (LAX) · 45 min minimum on one ticket
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19:07 LAX → 22:00 SEAUA 684 · United · 2h 53m · 84% on time, 0.0% cancelled
Total trip 11h 50m, scheduled departure to arrival (Seattle is 3 h behind Dulles). Times are local. Both flew on 34 of the last 56 days.
Makes the connection99%The first flight arrived more than 160 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 25m layover.
Arrives on time83%First flight not cancelled (0.5% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (84%).
Total trip11h 50mIAD 13:10 to SEA 22:00, 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.