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

St Louis → Baltimore via Chicago: arrives on time 37%

  1. 13:27 STL → 14:59 ORD
    AA 6352 · American, flown by SkyWest · 1h 34m · 65% on time, 5.6% cancelled
  2. 1h 19m layover in Chicago (ORD) · 45 min minimum on one ticket
  3. 16:18 ORD → 19:28 BWI
    AA 4717 · American, flown by Republic · 2h 13m · 61% on time, 12.5% cancelled

Total trip 5h 04m, scheduled departure to arrival (Baltimore is 1 h ahead of St Louis). Times are local. Both flew on 56 of the last 56 days.

Makes the connection74%The first flight arrived more than 34 minutes late on 26% of the days it flew: too late for the 45-minute minimum connection on a 1h 19m layover.
Arrives on time37%First flight not cancelled (5.6% are) × connection made (74%) × second flight not cancelled (12.5% are) and within 15 minutes (61%).
Total trip5h 04mSTL 13:27 to BWI 19:28, 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.