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

Dulles → Raleigh/Durham via Atlanta: arrives on time 79%

  1. 06:00 IAD → 07:46 ATL
    DL 2127 · Delta · 1h 46m · 90% on time, 2.6% cancelled
  2. 57m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 08:43 ATL → 10:10 RDU
    DL 1699 · Delta · 1h 27m · 93% on time, 0.7% cancelled

Total trip 4h 10m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.

Makes the connection88%The first flight arrived more than 12 minutes late on 12% of the days it flew: too late for the 45-minute minimum connection on a 57m layover.
Arrives on time79%First flight not cancelled (2.6% are) × connection made (88%) × second flight not cancelled (0.7% are) and within 15 minutes (93%).
Total trip4h 10mIAD 06:00 to RDU 10:10, 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.