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

Dulles → Houston 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. 3h 19m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 11:05 ATL → 12:11 HOU
    DL 1195 · Delta · 2h 07m · 85% on time, 0.8% cancelled

Total trip 7h 12m, scheduled departure to arrival (Houston is 1 h behind Dulles). Times are local. Both flew on 48 of the last 56 days.

Makes the connection98%The first flight arrived more than 154 minutes late on 2% of the days it flew: too late for the 45-minute minimum connection on a 3h 19m layover.
Arrives on time80%First flight not cancelled (2.6% are) × connection made (98%) × second flight not cancelled (0.8% are) and within 15 minutes (85%).
Total trip7h 12mIAD 06:00 to HOU 12:11, 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.