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

St Louis → Pittsburgh via Chicago: arrives on time 64%

  1. 17:19 STL → 19:12 ORD
    AA 4537 · American, flown by Republic · 1h 53m · 79% on time, 8.3% cancelled
  2. 1h 58m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 21:10 ORD → 23:52 PIT
    AA 4539 · American, flown by Republic · 1h 44m · 79% on time, 4.4% cancelled

Total trip 5h 35m, scheduled departure to arrival (Pittsburgh is 1 h ahead of St Louis). Times are local. Both flew on 56 of the last 56 days.

Makes the connection92%The first flight arrived more than 73 minutes late on 8% of the days it flew: too late for the 45-minute minimum connection on a 1h 58m layover.
Arrives on time64%First flight not cancelled (8.3% are) × connection made (92%) × second flight not cancelled (4.4% are) and within 15 minutes (79%).
Total trip5h 35mSTL 17:19 to PIT 23:52, layover included

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