Diversion — SWA431

KPHL · 09L

2026-03-27 23:15 UTC· KPWM → KPHL· SOUTHWEST AIRLINES CO· B737

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SWA431 (Southwest Airlines) was operating from KPWM to KBWI (Baltimore/Washington International Thurgood Marshall Airport) on 2026-03-27. SkyMeter detected a diversion to Philadelphia International Airport (KPHL) on runway 09L at 23:15 UTC. Peak cruise altitude FL343, turnaround area near Stratford, US. Approach stability score: 85/100. 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, 10 kt crosswind component, 16,093 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • SECURITY5/2811 2025-10-20 12:00Z – 2026-10-20 12:00Z SFC–1,000 ft

    NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local

    View FAA NOTAM →

SkyMeter cross-referenced this flight against FAA-published TFRs that were active during its window and within its geographic bounding box. Overlap doesn't necessarily mean violation — the aircraft may have been outside the TFR’s precise polygon or flying under air-traffic-control coordination.

Pilot review data

  • Runway 09L
  • 11 ft AGL at event
  • 120 kt ground speed
  • 0 fpm vertical
  • Approach stability 85/100
  • 11 kt wind
  • 10 kt crosswind component
  • 16,093 m visibility
  • METAR KPHL 241154Z 03014G21KT 10SM BKN038 BKN280 13/08 A3038 RMK AO2 PK WND 36028/1111 SLP288 T01280078 10144 20122 53007 $

Flight context

  • SWA431
  • Southwest Airlines
  • B737
  • KPWM → KPHL
  • 2026-03-27 23:15 UTC
  • KPHL runway 09L

All events on this flight

Diversion 23:15:13 UTC · KPHL runway 09L · 11 ft AGL · 120 kt GS
Diversion 23:15:13 UTC · KPHL runway 09L · 11 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· KPHL