Go-around — UAL440

KDEN · 35R

2026-05-17 20:05 UTC· KFLL → KDEN· UNITED AIRLINES INC· B39M

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UAL440 (United Airlines) was operating from KFLL to KDEN on 2026-05-17. SkyMeter detected a go-around at Denver International Airport (KDEN) on runway 35R at 20:05 UTC. Trace data at the event: 6670 ft AGL, 174 kt GS. METAR at the time reported 4 kt wind, 3 kt crosswind component, 16,093 m visibility. A go-around is a discontinued landing approach in which the pilot adds power and climbs back to a safe altitude before re-attempting the approach or proceeding to an alternate. It is a routine safety response, not an emergency, and is taught as the standard reaction to any unstable approach. Detection algorithm and known limitations: see SkyMeter methodology.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • SECURITY5/6914 2025-05-06 23:30Z – 2027-10-18 11:03Z SFC–6,000 ft

    South Padre Island, TX, Tuesday, May 6, 2025 Local

    View FAA NOTAM →
  • SECURITY5/2809 2025-10-20 12:00Z – 2026-10-20 12:00Z SFC–2,000 ft

    Palm Beach, FL, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4240 2026-03-08 08:00Z – 2026-11-01 07:00Z SFC–180 ft

    SAN ANGELO, TX, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local

    View FAA NOTAM →
  • HAZARDS6/9916 2026-05-13 12:00Z – 2026-05-22 01:30Z SFC–2,000 ft

    27NM E OF WAYCROSS, GA, Wednesday, May 13, 2026 through Friday, May 22, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9917 2026-05-13 12:00Z – 2026-05-22 01:30Z SFC–2,000 ft

    18NM S OF HOMERVILLE, GA, Wednesday, May 13, 2026 through Friday, May 22, 2026 UTC

    View FAA NOTAM →
  • AIR SHOWS/SPORTS6/8734 2026-05-14 15:30Z – 2026-05-17 21:00Z SFC–15,000 ft

    Vero Beach, FL, Thursday, May 14, 2026 through Sunday, May 17, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/0887 2026-05-16 18:37Z – 2026-05-30 04:00Z SFC–10,500 ft

    19NM SW TUCUMCARI, NM, Saturday, May 16, 2026 through Saturday, May 30, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/0905 2026-05-17 10:00Z – 2026-05-19 01:30Z SFC–6,000 ft

    4NM SE MEADE, KS, Sunday, May 17, 2026 through Tuesday, May 19, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/0906 2026-05-17 10:00Z – 2026-05-19 01:30Z SFC–6,000 ft

    9NM NW ASHLAND, KS, Sunday, May 17, 2026 through Tuesday, May 19, 2026 UTC

    View FAA NOTAM →
  • AIR SHOWS/SPORTS6/9272 2026-05-17 18:30Z – 2026-05-17 21:00Z SFC–5,000 ft

    Paragould, AR, Sunday, May 17, 2026 UTC

    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
  • 6670 ft AGL at event
  • 174 kt ground speed
  • 0 fpm vertical
  • 4 kt wind
  • 3 kt crosswind component
  • 16,093 m visibility
  • KDEN 200953Z 00000KT 10SM FEW100 12/09 A3013 RMK AO2 SLP136 T01220089 $

Flight context

  • UAL440
  • United Airlines
  • B39M
  • KFLL → KDEN
  • 2026-05-17 20:05 UTC
  • KDEN runway 35R

All events on this flight

Go-around 20:05:32 UTC · KDEN runway 35R · 6,670 ft AGL · 174 kt GS
Go-around 20:05:32 UTC · KDEN runway 35R · 6,670 ft AGL · 174 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· KDEN