Diversion — UAL431

UAL431 (United Airlines) was operating from KDEN to KGJT (Grand Junction Regional Airport) on 2026-07-27. SkyMeter detected a diversion to Mack Mesa Airport (C07) on runway 07 at 06:11 UTC. Peak cruise altitude FL280, turnaround area near Eagle County, US. METAR at the time reported 15 kt wind, 2 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

• HAZARDS6/5875 2026-07-15 04:00Z – 2026-07-30 04:00Z SFC–12,000 ft

  19NM SW MEEKER, CO, Wednesday, July 15, 2026 through Thursday, July 30, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/6900 2026-07-20 14:42Z – 2026-08-03 04:00Z SFC–13,500 ft

  11NM SW KREMMLING, CO, Monday, July 20, 2026 through Monday, August 3, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/7220 2026-07-21 04:00Z – 2026-08-04 04:00Z SFC–12,000 ft

  19NM SW MEEKER, CO, Tuesday, July 21, 2026 through Tuesday, August 4, 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.

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