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

St Louis → Philadelphia via Houston: arrives on time 42%

  1. 14:57 STL → 17:16 IAH
    UA 5580 · United, flown by SkyWest · 2h 19m · 64% on time, 0.0% cancelled
  2. 49m layover in Houston (IAH) · 45 min minimum on one ticket
  3. 18:05 IAH → 22:29 PHL
    UA 1663 · United · 3h 24m · 75% on time, 1.0% cancelled

Total trip 6h 32m, scheduled departure to arrival (Philadelphia is 1 h ahead of St Louis). Times are local. Both flew on 31 of the last 56 days.

Makes the connection56%The first flight arrived more than 4 minutes late on 44% of the days it flew: too late for the 45-minute minimum connection on a 49m layover.
Arrives on time42%First flight not cancelled (0.0% are) × connection made (56%) × second flight not cancelled (1.0% are) and within 15 minutes (75%).
Total trip6h 32mSTL 14:57 to PHL 22:29, 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.