Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Seattle → Newark via Houston: arrives on time 75%
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23:49 SEA → 06:10 IAHUA 2379 · United · 4h 21m · 84% on time, 0.4% cancelled
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1h 10m layover in Houston (IAH) · 45 min minimum on one ticket
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07:20 IAH → 11:59 EWR +1 dayUA 1886 · United · 3h 39m · 88% on time, 1.6% cancelled
Total trip 9h 10m, scheduled departure to arrival (Newark is 3 h ahead of Seattle). Times are local. Both flew on 38 of the last 56 days.
Makes the connection86%The first flight arrived more than 25 minutes late on 14% of the days it flew: too late for the 45-minute minimum connection on a 1h 10m layover.
Arrives on time75%First flight not cancelled (0.4% are) × connection made (86%) × second flight not cancelled (1.6% are) and within 15 minutes (88%).
Total trip9h 10mSEA 23:49 to EWR 11:59, 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.