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

St Louis → Jacksonville via Houston: arrives on time 49%

  1. 14:57 STL → 17:16 IAH
    UA 5580 · United, flown by SkyWest · 2h 19m · 64% on time, 0.0% cancelled
  2. 59m layover in Houston (IAH) · 45 min minimum on one ticket
  3. 18:15 IAH → 21:41 JAX
    UA 4035 · United, flown by Mesa · 2h 26m · 78% on time, 0.0% cancelled

Total trip 5h 44m, scheduled departure to arrival (Jacksonville is 1 h ahead of St Louis). Times are local. Both flew on 26 of the last 56 days.

Makes the connection63%The first flight arrived more than 14 minutes late on 37% of the days it flew: too late for the 45-minute minimum connection on a 59m layover.
Arrives on time49%First flight not cancelled (0.0% are) × connection made (63%) × second flight not cancelled (0.0% are) and within 15 minutes (78%).
Total trip5h 44mSTL 14:57 to JAX 21:41, 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.