UA5851 AspenASE Los AngelesLAX · 09:30
UA5851 by United Airlines flies from Aspen (ASE) to Los Angeles (LAX).
tracked route ASE → LAX
Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival −17 min · 0 cancelled · 14 operations tracked
The route today
live boardsHow UA5851 actually runs
Pro Flight Search has tracked every published board update for UA5851 across the ASE and LAX boards: schedule changes, gate pushes and actual clocks. Usually lands ~15 min early. Based on 14 confirmed landings · 13/14 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA5851 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N635SY, N639SY, N110SY, N634SY.
Board clocks recorded as ASE and LAX published them.
Planning around UA5851? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA5851 Aspen to Los Angeles on-time performance, measured from the ASE and LAX airport boards.
https://proflightsearch.com/flight/UA5851
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