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

Dallas-Fort Worth → Greensboro via Dulles: arrives on time 54%

  1. 17:15 DFW → 21:24 IAD
    UA 1240 · United · 3h 09m · 79% on time, 1.2% cancelled
  2. 51m layover in Dulles (IAD) · 45 min minimum on one ticket
  3. 22:15 IAD → 23:36 GSO
    UA 4849 · United, flown by CommuteAir · 1h 21m · 80% on time, 2.4% cancelled

Total trip 5h 21m, scheduled departure to arrival (Greensboro is 1 h ahead of Dallas-Fort Worth). Times are local. Both flew on 54 of the last 56 days.

Makes the connection70%The first flight arrived more than 6 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 51m layover.
Arrives on time54%First flight not cancelled (1.2% are) × connection made (70%) × second flight not cancelled (2.4% are) and within 15 minutes (80%).
Total trip5h 21mDFW 17:15 to GSO 23:36, 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.