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

Louisville → Philadelphia via Dulles: arrives on time 74%

  1. 06:00 SDF → 07:35 IAD
    UA 3438 · United, flown by Republic · 1h 35m · 93% on time, 1.4% cancelled
  2. 1h 00m layover in Dulles (IAD) · 45 min minimum on one ticket
  3. 08:35 IAD → 09:45 PHL
    UA 4015 · United, flown by Mesa · 1h 10m · 84% on time, 3.4% cancelled

Total trip 3h 45m, scheduled departure to arrival. Times are local. Both flew on 47 of the last 56 days.

Makes the connection93%The first flight arrived more than 15 minutes late on 7% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time74%First flight not cancelled (1.4% are) × connection made (93%) × second flight not cancelled (3.4% are) and within 15 minutes (84%).
Total trip3h 45mSDF 06:00 to PHL 09:45, 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.