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

Dulles → Miami via Atlanta: arrives on time 73%

  1. 06:00 IAD → 07:46 ATL
    DL 2127 · Delta · 1h 46m · 90% on time, 2.6% cancelled
  2. 1h 09m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 08:55 ATL → 10:57 MIA
    DL 1510 · Delta · 2h 01m · 84% on time, 2.2% cancelled

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

Makes the connection92%The first flight arrived more than 24 minutes late on 8% of the days it flew: too late for the 45-minute minimum connection on a 1h 09m layover.
Arrives on time73%First flight not cancelled (2.6% are) × connection made (92%) × second flight not cancelled (2.2% are) and within 15 minutes (84%).
Total trip4h 56mIAD 06:00 to MIA 10:57, 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.