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

Greenville → Dulles via Detroit: arrives on time 37%

  1. 18:55 GSP → 20:48 DTW
    DL 5090 · Delta, flown by Endeavor · 1h 53m · 61% on time, 4.1% cancelled
  2. 50m layover in Detroit (DTW) · 45 min minimum on one ticket
  3. 21:38 DTW → 23:14 IAD
    DL 3988 · Delta, flown by SkyWest · 1h 36m · 65% on time, 0.0% cancelled

Total trip 4h 19m, scheduled departure to arrival. Times are local. Both flew on 48 of the last 56 days.

Makes the connection60%The first flight arrived more than 5 minutes late on 40% of the days it flew: too late for the 45-minute minimum connection on a 50m layover.
Arrives on time37%First flight not cancelled (4.1% are) × connection made (60%) × second flight not cancelled (0.0% are) and within 15 minutes (65%).
Total trip4h 19mGSP 18:55 to IAD 23:14, 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.