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

Houston → Philadelphia via Atlanta: arrives on time 53%

  1. 18:34 IAH → 21:54 ATL
    DL 1223 · Delta · 2h 20m · 72% on time, 3.7% cancelled
  2. 1h 01m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 22:55 ATL → 00:59 PHL +1 day
    DL 2642 · Delta · 2h 05m · 78% on time, 3.3% cancelled

Total trip 5h 26m, scheduled departure to arrival (Philadelphia is 1 h ahead of Houston). Times are local. Both flew on 36 of the last 56 days.

Makes the connection73%The first flight arrived more than 16 minutes late on 27% of the days it flew: too late for the 45-minute minimum connection on a 1h 01m layover.
Arrives on time53%First flight not cancelled (3.7% are) × connection made (73%) × second flight not cancelled (3.3% are) and within 15 minutes (78%).
Total trip5h 26mIAH 18:34 to PHL 00:59, 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.