Diversion — SWA8509

KSTL · 12L

2026-01-26 16:47 UTC· KMCI → KSTL· SOUTHWEST AIRLINES CO· B737

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SWA8509 (Southwest Airlines) was operating from KMCI to KDCA (Ronald Reagan Washington National Airport) on 2026-01-26. SkyMeter detected a diversion to St Louis Lambert International Airport (KSTL) on runway 12L at 16:47 UTC. Peak cruise altitude FL403, turnaround area near Elsberry, US. METAR at the time reported 7 kt wind, 6 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
  • 7 kt wind
  • 6 kt crosswind component
  • 16,093 m visibility
  • KSTL 101351Z COR 10005KT 10SM BKN250 18/11 A3009 RMK AO2 SLP180 T01780111 $

Flight context

  • SWA8509
  • Southwest Airlines
  • B737
  • KMCI → KSTL
  • 2026-01-26 16:47 UTC
  • KSTL runway 12L

All events on this flight

Diversion 16:47:20 UTC · KSTL runway 12L · 605 ft AGL · 120 kt GS
Diversion 16:47:20 UTC · KSTL runway 12L · 605 ft AGL · 120 kt GS

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

SkyMeter · trace data observed via ADS-B· KSTL