Diversion — UAL1820

UAL1820 (United Airlines) was operating from KSFO to KDEN (Denver International Airport) on 2026-08-11. SkyMeter detected a diversion to Denver International Airport (KDEN) on runway 34R at 22:18 UTC. Peak cruise altitude FL373, turnaround area near Millard, US. Approach stability score: 66/100. Scores in this band occur on roughly 10-15% of approaches at this runway, with multiple gates outside the per-runway envelope. METAR at the time reported 0 kt wind, 16,093 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.

• SECURITY6/3475 2026-03-08 09:00Z – 2026-11-01 09:59Z SFC–180 ft

  BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local

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• SECURITY6/5797 2026-04-03 00:01Z – 2026-09-28 23:59Z SFC–400 ft

  SACRAMENTO, CA, Thursday, April 2, 2026 through Monday, September 28, 2026 Local

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• SECURITY6/6491 2026-07-20 07:01Z – 2026-09-16 06:59Z SFC–1,499 ft

  Concord, CA, Monday, July 20, 2026 through Tuesday, September 15, 2026 Local

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• HAZARDS6/8010 2026-07-23 12:00Z – 2026-08-12 04:00Z SFC–16,500 ft

  19NM NE OURAY, CO, Thursday, July 23, 2026 through Wednesday, August 12, 2026 UTC

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• HAZARDS6/8012 2026-07-23 12:00Z – 2026-08-12 04:00Z SFC–16,500 ft

  1NM N OURAY, CO, Thursday, July 23, 2026 through Wednesday, August 12, 2026 UTC

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• HAZARDS6/9884 2026-07-29 12:00Z – 2026-08-12 04:00Z SFC–12,500 ft

  19NM NW GRAND JUNCTION, CO, Wednesday, July 29, 2026 through Wednesday, August 12, 2026 UTC

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• HAZARDS6/0409 2026-07-30 04:00Z – 2026-08-12 04:00Z SFC–15,000 ft

  9NM SW PUEBLO, CO, Thursday, July 30, 2026 through Wednesday, August 12, 2026 UTC

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• HAZARDS6/0406 2026-07-30 14:00Z – 2026-08-12 05:00Z SFC–13,000 ft

  60NM NE FALLON, NV, Thursday, July 30, 2026 through Wednesday, August 12, 2026 UTC

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• HAZARDS6/0407 2026-07-30 14:00Z – 2026-08-12 05:00Z SFC–13,000 ft

  60NM NE FALLON, NV, Thursday, July 30, 2026 through Wednesday, August 12, 2026 UTC

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• HAZARDS6/0722 2026-08-01 13:00Z – 2026-08-14 04:00Z SFC–14,000 ft

  9NM S ELY, NV, Saturday, August 1, 2026 through Friday, August 14, 2026 UTC

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• HAZARDS6/0881 2026-08-02 13:00Z – 2026-08-16 03:00Z SFC–14,000 ft

  26NM SW PRICE, UT, Sunday, August 2, 2026 through Sunday, August 16, 2026 UTC

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• HAZARDS6/1038 2026-08-03 13:00Z – 2026-08-16 04:00Z SFC–14,000 ft

  9NM S ELY, NV, Monday, August 3, 2026 through Sunday, August 16, 2026 UTC

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• HAZARDS6/1461 2026-08-04 12:00Z – 2026-08-18 04:00Z SFC–13,000 ft

  4NM W RICHFIELD, UT, Tuesday, August 4, 2026 through Tuesday, August 18, 2026 UTC

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• HAZARDS6/1464 2026-08-04 12:00Z – 2026-08-18 04:00Z SFC–13,000 ft

  4NM W RICHFIELD, UT, Tuesday, August 4, 2026 through Tuesday, August 18, 2026 UTC

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• HAZARDS6/1462 2026-08-04 13:00Z – 2026-09-01 04:00Z SFC–15,000 ft

  20NM SW PUEBLO, CO, Tuesday, August 4, 2026 through Tuesday, September 1, 2026 UTC

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• HAZARDS6/1795 2026-08-04 20:57Z – 2026-08-18 04:00Z SFC–6,000 ft

  27NM NE STOCKTON, CA, Tuesday, August 4, 2026 through Tuesday, August 18, 2026 UTC

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• HAZARDS6/1961 2026-08-05 13:00Z – 2026-08-19 04:00Z SFC–14,000 ft

  9NM S ELY, NV, Wednesday, August 5, 2026 through Wednesday, August 19, 2026 UTC

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• HAZARDS6/2433 2026-08-05 21:49Z – 2026-08-15 04:00Z SFC–6,000 ft

  27NM NE STOCKTON, CA, Wednesday, August 5, 2026 through Saturday, August 15, 2026 UTC

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• HAZARDS6/2767 2026-08-07 12:00Z – 2026-08-21 04:00Z SFC–16,500 ft

  1NM NE OURAY, CO, Friday, August 7, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/2768 2026-08-07 14:00Z – 2026-08-22 04:00Z SFC–12,500 ft

  8NM SW RIFLE, CO, Friday, August 7, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/2889 2026-08-07 19:58Z – 2026-08-21 04:00Z SFC–13,000 ft

  4NM W RICHFIELD, UT, Friday, August 7, 2026 through Friday, August 21, 2026 UTC

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• HAZARDS6/2913 2026-08-08 14:00Z – 2026-08-22 04:00Z SFC–12,500 ft

  10NM SW RIFLE, CO, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/2914 2026-08-08 14:00Z – 2026-08-22 04:00Z SFC–6,500 ft

  8NM W RIFLE, CO, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/3039 2026-08-08 17:30Z – 2026-08-22 04:00Z SFC–11,500 ft

  6NM SW RENO, NV, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/3100 2026-08-09 02:44Z – 2026-08-22 04:00Z SFC–6,000 ft

  7NM E GRASS VALLEY, CA, Sunday, August 9, 2026 through Saturday, August 22, 2026 UTC

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• HAZARDS6/3101 2026-08-09 13:00Z – 2026-08-24 03:00Z SFC–15,000 ft

  24NM SW PUEBLO, CO, Sunday, August 9, 2026 through Monday, August 24, 2026 UTC

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• HAZARDS6/3128 2026-08-09 14:45Z – 2026-08-23 04:00Z SFC–11,000 ft

  15NM NW RENO, NV, Sunday, August 9, 2026 through Sunday, August 23, 2026 UTC

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• HAZARDS6/3159 2026-08-10 04:00Z – 2026-08-24 04:00Z SFC–11,500 ft

  6NM SW RENO, NV, Monday, August 10, 2026 through Monday, August 24, 2026 UTC

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• HAZARDS6/3162 2026-08-10 04:00Z – 2026-08-24 04:00Z SFC–9,500 ft

  15NM NW RENO, NV, Monday, August 10, 2026 through Monday, August 24, 2026 UTC

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• HAZARDS6/3606 2026-08-10 21:45Z – 2026-08-24 04:00Z SFC–9,500 ft

  22NM NE RENO, NV, Monday, August 10, 2026 through Monday, August 24, 2026 UTC

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• HAZARDS6/3679 2026-08-11 12:00Z – 2026-08-25 08:00Z SFC–16,500 ft

  1NM NE OURAY, CO, Tuesday, August 11, 2026 through Tuesday, August 25, 2026 UTC

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• HAZARDS6/3659 2026-08-11 13:00Z – 2026-08-24 03:00Z SFC–14,000 ft

  26NM SW PRICE, UT, Tuesday, August 11, 2026 through Monday, August 24, 2026 UTC

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• HAZARDS6/3717 2026-08-11 14:58Z – 2026-08-24 04:00Z SFC–9,500 ft

  15NM NW RENO, NV, Tuesday, August 11, 2026 through Monday, August 24, 2026 UTC

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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.

All events on this flight

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