Diversion — UAL599

KCOS · 35R

2026-08-04 01:58 UTC· KIAD KCOS· UNITED AIRLINES INC· B753

UAL599 (United Airlines) was operating from KIAD to KDEN (Denver International Airport) on 2026-08-04. SkyMeter detected a diversion to City of Colorado Springs Municipal Airport (KCOS) on runway 35R at 01:58 UTC. Peak cruise altitude FL361, turnaround area near Wright City, US. METAR at the time reported 0 kt wind, 16,093 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • VIP6/0568 2026-07-31 19:00Z – 2026-08-03 22:30Z SFC–4,999 ft

    Middleburg, VA, Friday, July 31, 2026 through Monday, August 3, 2026 Local

    View FAA NOTAM →
  • VIP6/0992 2026-08-02 21:45Z – 2026-08-03 23:45Z SFC–4,999 ft

    Middleburg, VA, Sunday, August 2, 2026 through Monday, August 3, 2026 Local

    View FAA NOTAM →
  • HAZARDS6/0663 2026-08-03 13:00Z – 2026-08-03 22:00Z SFC–2,000 ft

    SEDALIA, MO, Monday, August 3, 2026 UTC

    View FAA NOTAM →
  • VIP6/1212 2026-08-03 23:30Z – 2026-08-04 23:30Z SFC–4,999 ft

    Middleburg, VA, Monday, August 3, 2026 through Tuesday, August 4, 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 35R
  • 0 ft AGL at event
  • 0 kt ground speed
  • 0 fpm vertical
  • 0 kt wind
  • 0 kt crosswind component
  • 16,093 m visibility
  • KCOS 161854Z 16005KT 10SM FEW085 SCT140 BKN200 23/08 A3030 RMK AO2 SLP189 T02330083 $

Flight context

  • UAL599
  • United Airlines
  • B753
  • KIAD → KCOS
  • 2026-08-04 01:58 UTC
  • KCOS runway 35R

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· KCOS