Diversion — UAL1857

KMSN · 18

2026-03-06 15:50 UTC· KFSD → KMSN· UNITED AIRLINES INC· B738

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UAL1857 (United Airlines) was operating from KFSD to KORD (Chicago O'Hare International Airport) on 2026-03-06. SkyMeter detected a diversion to Dane County Regional Truax Field (KMSN) on runway 18 at 15:50 UTC. Peak cruise altitude FL374, turnaround area near Nora Springs, US. Approach stability score: 88/100. Scores in this band are observed on roughly 50% of approaches at this runway and represent the centerline of normal operations. METAR at the time reported 7 kt wind, 1 kt crosswind component, 16,093 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.

Pilot review data

  • Runway 18
  • 862 ft AGL at event
  • 120 kt ground speed
  • 0 fpm vertical
  • Approach stability 88/100
  • 7 kt wind
  • 1 kt crosswind component
  • 16,093 m visibility
  • METAR KMSN 281453Z 03004KT 10SM FEW150 19/13 A3012 RMK AO2 SLP200 T01940133 58001

Flight context

  • UAL1857
  • United Airlines
  • B738
  • KFSD → KMSN
  • 2026-03-06 15:50 UTC
  • KMSN runway 18

All events on this flight

Diversion 15:50:32 UTC · KMSN runway 18 · 862 ft AGL · 120 kt GS
Diversion 15:50:32 UTC · KMSN runway 18 · 862 ft AGL · 120 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· KMSN