Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Greensboro → Chicago via Atlanta: arrives on time 79%

  1. 06:35 GSO → 07:56 ATL
    DL 3004 · Delta · 1h 21m · 94% on time, 2.4% cancelled
  2. 3h 33m layover in Atlanta (ATL) · 90 min minimum on separate tickets
  3. 11:29 ATL → 12:52 ORD
    UA 1239 · United · 2h 23m · 82% on time, 0.0% cancelled

Total trip 7h 17m, scheduled departure to arrival (Chicago is 1 h behind Greensboro). Times are local. Both flew on 56 of the last 56 days.

Makes the connection99%The first flight arrived more than 123 minutes late on 1% of the days it flew: too late for the 90-minute minimum connection on a 3h 33m layover.
Arrives on time79%First flight not cancelled (2.4% are) × connection made (99%) × second flight not cancelled (0.0% are) and within 15 minutes (82%).
Total trip7h 17mGSO 06:35 to ORD 12:52, 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.