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

Dulles → San Antonio via Atlanta: arrives on time 76%

  1. 06:00 IAD → 07:46 ATL
    DL 2127 · Delta · 1h 46m · 90% on time, 2.6% cancelled
  2. 1h 56m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 09:42 ATL → 11:10 SAT
    DL 1121 · Delta · 2h 28m · 83% on time, 1.6% cancelled

Total trip 6h 10m, scheduled departure to arrival (San Antonio is 1 h behind Dulles). Times are local. Both flew on 56 of the last 56 days.

Makes the connection96%The first flight arrived more than 71 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 1h 56m layover.
Arrives on time76%First flight not cancelled (2.6% are) × connection made (96%) × second flight not cancelled (1.6% are) and within 15 minutes (83%).
Total trip6h 10mIAD 06:00 to SAT 11:10, 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.