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

Dulles → Miami via Atlanta: arrives on time 78%

  1. 06:00 IAD → 07:46 ATL
    DL 2127 · Delta · 1h 46m · 90% on time, 2.6% cancelled
  2. 3h 14m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 11:00 ATL → 13:04 MIA
    DL 1332 · Delta · 2h 04m · 82% on time, 1.4% cancelled

Total trip 7h 04m, scheduled departure to arrival. Times are local. Both flew on 56 of the last 56 days.

Makes the connection98%The first flight arrived more than 149 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 3h 14m layover.
Arrives on time78%First flight not cancelled (2.6% are) × connection made (98%) × second flight not cancelled (1.4% are) and within 15 minutes (82%).
Total trip7h 04mIAD 06:00 to MIA 13:04, 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.