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

San Diego → St Louis via Chicago: arrives on time 60%

  1. 06:30 SAN → 12:35 MDW
    WN 3513 · Southwest · 4h 05m · 84% on time, 0.0% cancelled
  2. 2h 10m layover in Chicago (MDW) · 45 min minimum on one ticket
  3. 14:45 MDW → 15:55 STL
    WN 2903 · Southwest · 1h 10m · 62% on time, 4.8% cancelled

Total trip 7h 25m, scheduled departure to arrival (St Louis is 2 h ahead of San Diego). Times are local. Both flew on 40 of the last 56 days.

Makes the connection100%The first flight arrived more than 85 minutes late on 0% of the days it flew: too late for the 45-minute minimum connection on a 2h 10m layover.
Arrives on time60%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (4.8% are) and within 15 minutes (62%).
Total trip7h 25mSAN 06:30 to STL 15:55, 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.