Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

St Louis → Baltimore via Detroit: arrives on time 77%

  1. 09:55 STL → 12:25 DTW
    WN 4177 · Southwest · 1h 30m · 76% on time, 0.0% cancelled
  2. 2h 44m layover in Detroit (DTW) · 90 min minimum on separate tickets
  3. 15:09 DTW → 16:45 BWI
    DL 2480 · Delta · 1h 36m · 81% on time, 1.7% cancelled

Total trip 5h 50m, scheduled departure to arrival (Baltimore is 1 h ahead of St Louis). Times are local. Both flew on 31 of the last 56 days.

Makes the connection97%The first flight arrived more than 74 minutes late on 3% of the days it flew: too late for the 90-minute minimum connection on a 2h 44m layover.
Arrives on time77%First flight not cancelled (0.0% are) × connection made (97%) × second flight not cancelled (1.7% are) and within 15 minutes (81%).
Total trip5h 50mSTL 09:55 to BWI 16:45, 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.