Diversion — SWA504
KSTL · 12L2025-12-28 16:37 UTC· KDAL → KSTL· SOUTHWEST AIRLINES CO· B737
SWA504 (Southwest Airlines) was operating from KDAL to KMDW (Chicago Midway International Airport) on 2025-12-28. SkyMeter detected a diversion to St Louis Lambert International Airport (KSTL) on runway 12L at 16:37 UTC. Peak cruise altitude FL419, turnaround area near Cabool, US. Approach stability score: 73/100. Scores in this band are observed on roughly 25% of approaches at this runway: one or more gates outside the per-runway tightest envelope, but still inside the typical operating range. METAR at the time reported 11 kt wind, 11 kt crosswind component, 16,093 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.
Pilot review data
- Runway 12L
- 605 ft AGL at event
- 120 kt ground speed
- 0 fpm vertical
- Approach stability 73/100
- 11 kt wind
- 11 kt crosswind component
- 16,093 m visibility
- KSTL 171151Z COR 34003KT 10SM CLR 06/03 A3053 RMK AO2 SLP342 70008 T00560033 10100 20056 52013
Flight context
- SWA504
- Southwest Airlines
- B737
- KDAL → KSTL
- 2025-12-28 16:37 UTC
- KSTL runway 12L
All events on this flight
Automated analysis. Events shown on this page (such as go-around, unstable approach, or runway events) are heuristic classifications produced by algorithms from publicly broadcast ADS-B data. They are intended to surface flights of interest for further review — they are not findings of fact, and they do not determine pilot fault, regulatory compliance, or the cause of any occurrence. Coverage gaps and sensor noise can affect accuracy. Only the relevant civil aviation authority or accident investigation body can make official determinations. How we detect events · Dispute or correct this data