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

Dulles → Louisville via Atlanta: arrives on time 81%

  1. 06:00 IAD → 07:46 ATL
    DL 2127 · Delta · 1h 46m · 90% on time, 2.6% cancelled
  2. 1h 24m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 09:10 ATL → 10:29 SDF
    DL 1374 · Delta · 1h 22m · 90% on time, 2.3% cancelled

Total trip 4h 32m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.

Makes the connection94%The first flight arrived more than 39 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 24m layover.
Arrives on time81%First flight not cancelled (2.6% are) × connection made (94%) × second flight not cancelled (2.3% are) and within 15 minutes (90%).
Total trip4h 32mIAD 06:00 to SDF 10:29, 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.