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

Houston → Dulles via Atlanta: arrives on time 68%

  1. 17:12 HOU → 20:28 ATL
    DL 2381 · Delta · 2h 16m · 77% on time, 1.9% cancelled
  2. 2h 25m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 22:53 ATL → 00:44 IAD +1 day
    DL 2549 · Delta · 1h 51m · 75% on time, 2.1% cancelled

Total trip 6h 32m, scheduled departure to arrival (Dulles is 1 h ahead of Houston). Times are local. Both flew on 56 of the last 56 days.

Makes the connection94%The first flight arrived more than 100 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 2h 25m layover.
Arrives on time68%First flight not cancelled (1.9% are) × connection made (94%) × second flight not cancelled (2.1% are) and within 15 minutes (75%).
Total trip6h 32mHOU 17:12 to IAD 00:44, 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.