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

Houston → Dulles via Atlanta: arrives on time 71%

13:10 HOU → 16:18 ATL

DL 1195 · Delta · 2h 08m · 80% on time, 0.8% cancelled
2h 57m layover in Atlanta (ATL) · 45 min minimum on one ticket
19:15 ATL → 21:03 IAD

DL 1309 · Delta · 1h 49m · 76% on time, 2.5% cancelled

Total trip 6h 54m, scheduled departure to arrival (Dulles is 1 h ahead of Houston). Times are local. Both flew on 45 of the last 56 days.

Makes the connection96%The first flight arrived more than 132 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 2h 57m layover.

Arrives on time71%First flight not cancelled (0.8% are) × connection made (96%) × second flight not cancelled (2.5% are) and within 15 minutes (76%).

Total trip6h 54mHOU 13:10 to IAD 21:03, 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.