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

Dulles → Harrisburg via Atlanta: arrives on time 80%

  1. 06:00 IAD → 07:46 ATL
    DL 2127 · Delta · 1h 46m · 90% on time, 2.6% cancelled
  2. 1h 33m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 09:19 ATL → 11:11 MDT
    DL 1248 · Delta · 1h 52m · 88% on time, 2.0% cancelled

Total trip 5h 11m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.

Makes the connection95%The first flight arrived more than 48 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 1h 33m layover.
Arrives on time80%First flight not cancelled (2.6% are) × connection made (95%) × second flight not cancelled (2.0% are) and within 15 minutes (88%).
Total trip5h 11mIAD 06:00 to MDT 11:11, 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.