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

San Antonio → Houston via Atlanta: arrives on time 42%

  1. 12:05 SAT → 15:38 ATL
    DL 1121 · Delta · 2h 33m · 77% on time, 2.3% cancelled
  2. 47m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 16:25 ATL → 17:39 IAH
    DL 1223 · Delta · 2h 14m · 68% on time, 2.5% cancelled

Total trip 5h 34m, scheduled departure to arrival. Times are local. Both flew on 36 of the last 56 days.

Makes the connection65%The first flight arrived more than 2 minutes late on 35% of the days it flew: too late for the 45-minute minimum connection on a 47m layover.
Arrives on time42%First flight not cancelled (2.3% are) × connection made (65%) × second flight not cancelled (2.5% are) and within 15 minutes (68%).
Total trip5h 34mSAT 12:05 to IAH 17:39, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.