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

Atlanta → Dayton via Dulles: arrives on time 75%

  1. 12:17 ATL → 14:02 IAD
    DL 2135 · Delta · 1h 45m · 85% on time, 0.0% cancelled
  2. 3h 13m layover in Dulles (IAD) · 90 min minimum on separate tickets
  3. 17:15 IAD → 19:01 DAY
    UA 4274 · United, flown by CommuteAir · 1h 46m · 80% on time, 2.1% cancelled

Total trip 6h 44m, scheduled departure to arrival. Times are local. Both flew on 48 of the last 56 days.

Makes the connection96%The first flight arrived more than 103 minutes late on 4% of the days it flew: too late for the 90-minute minimum connection on a 3h 13m layover.
Arrives on time75%First flight not cancelled (0.0% are) × connection made (96%) × second flight not cancelled (2.1% are) and within 15 minutes (80%).
Total trip6h 44mATL 12:17 to DAY 19:01, 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.