Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
Dulles → New York via Houston: arrives on time 51%
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12:50 IAD → 15:11 IAHUA 1535 · United · 3h 21m · 84% on time, 0.7% cancelled
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1h 04m layover in Houston (IAH) · 45 min minimum on one ticket
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16:15 IAH → 20:59 LGAUA 334 · United · 3h 44m · 61% on time, 2.4% cancelled
Total trip 8h 09m, scheduled departure to arrival. Times are local. Both flew on 53 of the last 56 days.
Makes the connection86%The first flight arrived more than 19 minutes late on 14% of the days it flew: too late for the 45-minute minimum connection on a 1h 04m layover.
Arrives on time51%First flight not cancelled (0.7% are) × connection made (86%) × second flight not cancelled (2.4% are) and within 15 minutes (61%).
Total trip8h 09mIAD 12:50 to LGA 20:59, 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.