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

New York → Columbus via Dulles: arrives on time 41%

  1. 14:51 LGA → 16:35 IAD
    UA 3688 · United, flown by Republic · 1h 44m · 63% on time, 5.1% cancelled
  2. 50m layover in Dulles (IAD) · 45 min minimum on one ticket
  3. 17:25 IAD → 18:57 CMH
    UA 4588 · United, flown by GoJet · 1h 32m · 83% on time, 6.5% cancelled

Total trip 4h 06m, scheduled departure to arrival. Times are local. Both flew on 31 of the last 56 days.

Makes the connection56%The first flight arrived more than 5 minutes late on 44% of the days it flew: too late for the 45-minute minimum connection on a 50m layover.
Arrives on time41%First flight not cancelled (5.1% are) × connection made (56%) × second flight not cancelled (6.5% are) and within 15 minutes (83%).
Total trip4h 06mLGA 14:51 to CMH 18:57, 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.