Return to field — UAL687

KDEN · 17L

2026-07-06 01:15 UTC· KDEN → KDEN· UNITED AIRLINES INC· B738

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UAL687 (United Airlines) was operating from KDEN to KIAD (Washington Dulles International Airport) on 2026-07-06. SkyMeter detected a return to field at Denver International Airport (KDEN) on runway 17L at 01:15 UTC. Peak cruise altitude FL244, turnaround area near Chaffee, US. Approach stability score: 41/100. Scores below 50 occur on under 10% of approaches at this runway and indicate the v2 scorer flagged the approach as highly anomalous (three or more gates exceeded the runway's P90 envelope simultaneously). 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)
  • HAZARDS6/1333 2026-06-29 03:06Z – 2026-07-13 04:00Z SFC–17,000 ft

    8NM SW LEADVILLE, CO, Monday, June 29, 2026 through Monday, July 13, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1416 2026-06-29 14:37Z – 2026-07-14 04:00Z SFC–13,500 ft

    15NM NW CAÑON CITY, CO, Monday, June 29, 2026 through Tuesday, July 14, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1775 2026-06-30 06:00Z – 2026-07-14 04:00Z SFC–15,000 ft

    4NM SW PUEBLO, CO, Tuesday, June 30, 2026 through Tuesday, July 14, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/2312 2026-07-01 04:00Z – 2026-07-15 04:00Z SFC–14,000 ft

    20NM W WALSENBURG, CO, Wednesday, July 1, 2026 through Wednesday, July 15, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/2597 2026-07-02 04:41Z – 2026-07-16 04:00Z SFC–15,000 ft

    4NM SW PUEBLO, CO, Thursday, July 2, 2026 through Thursday, July 16, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/2942 2026-07-05 12:00Z – 2026-07-19 04:00Z SFC–17,000 ft

    2NM W LEADVILLE, CO, Sunday, July 5, 2026 through Sunday, July 19, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/3007 2026-07-06 12:00Z – 2026-07-20 04:00Z SFC–17,000 ft

    1NM W LEADVILLE, CO, Monday, July 6, 2026 through Monday, July 20, 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 17L
  • 24482 ft AGL at event
  • 386 kt ground speed
  • 0 fpm vertical
  • Approach stability 41/100
  • 0 kt wind
  • 0 kt crosswind component
  • 16,093 m visibility
  • KDEN 070553Z 24007KT 10SM SCT150 BKN200 18/03 A3016 RMK AO2 SLP133 T01780028 10278 20178 50003

Flight context

  • UAL687
  • United Airlines
  • B738
  • KDEN → KDEN
  • 2026-07-06 01:15 UTC
  • KDEN runway 17L

All events on this flight

Return to field 01:15:52 UTC · KDEN runway 17L · 24,482 ft AGL · 386 kt GS
Unstable approach 14:04:32 UTC · KDEN runway 25 · 6,501 ft AGL · 192 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