Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Newark → Seattle via Houston: arrives on time 50%
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15:40 EWR → 18:46 IAHUA 2815 · United · 4h 06m · 69% on time, 2.8% cancelled
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1h 09m layover in Houston (IAH) · 45 min minimum on one ticket
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19:55 IAH → 22:42 SEAUA 2456 · United · 4h 47m · 73% on time, 0.7% cancelled
Total trip 10h 02m, scheduled departure to arrival (Seattle is 3 h behind Newark). Times are local. Both flew on 33 of the last 56 days.
Makes the connection71%The first flight arrived more than 24 minutes late on 29% of the days it flew: too late for the 45-minute minimum connection on a 1h 09m layover.
Arrives on time50%First flight not cancelled (2.8% are) × connection made (71%) × second flight not cancelled (0.7% are) and within 15 minutes (73%).
Total trip10h 02mEWR 15:40 to SEA 22:42, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.