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

Greensboro → Chicago via Dulles: arrives on time 87%

  1. 06:15 GSO → 07:33 IAD
    UA 4251 · United, flown by CommuteAir · 1h 18m · 91% on time, 0.7% cancelled
  2. 2h 58m layover in Dulles (IAD) · 45 min minimum on one ticket
  3. 10:31 IAD → 11:53 ORD
    UA 1252 · United · 2h 22m · 92% on time, 0.8% cancelled

Total trip 6h 38m, scheduled departure to arrival (Chicago is 1 h behind Greensboro). Times are local. Both flew on 55 of the last 56 days.

Makes the connection96%The first flight arrived more than 133 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 2h 58m layover.
Arrives on time87%First flight not cancelled (0.7% are) × connection made (96%) × second flight not cancelled (0.8% are) and within 15 minutes (92%).
Total trip6h 38mGSO 06:15 to ORD 11:53, 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.