Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Dulles → New York via Houston: arrives on time 57%

  1. 08:40 IAD → 10:59 IAH
    UA 1524 · United · 3h 19m · 89% on time, 0.6% cancelled
  2. 1h 01m layover in Houston (IAH) · 45 min minimum on one ticket
  3. 12:00 IAH → 16:44 LGA
    UA 2181 · United · 3h 44m · 66% on time, 0.8% cancelled

Total trip 8h 04m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.

Makes the connection89%The first flight arrived more than 16 minutes late on 11% of the days it flew: too late for the 45-minute minimum connection on a 1h 01m layover.
Arrives on time57%First flight not cancelled (0.6% are) × connection made (89%) × second flight not cancelled (0.8% are) and within 15 minutes (66%).
Total trip8h 04mIAD 08:40 to LGA 16:44, 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.