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

St Louis → Pittsburgh via Chicago: arrives on time 39%

  1. 15:22 STL → 17:00 ORD
    UA 4452 · United, flown by GoJet · 1h 38m · 63% on time, 5.4% cancelled
  2. 1h 05m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 18:05 ORD → 20:51 PIT
    UA 1946 · United · 1h 46m · 64% on time, 2.0% cancelled

Total trip 4h 29m, scheduled departure to arrival (Pittsburgh is 1 h ahead of St Louis). Times are local. Both flew on 36 of the last 56 days.

Makes the connection66%The first flight arrived more than 20 minutes late on 34% of the days it flew: too late for the 45-minute minimum connection on a 1h 05m layover.
Arrives on time39%First flight not cancelled (5.4% are) × connection made (66%) × second flight not cancelled (2.0% are) and within 15 minutes (64%).
Total trip4h 29mSTL 15:22 to PIT 20:51, 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.