UA4652 ASE → SFO

United Airlines · Aspen, CO to San Francisco, CA · 19 flights observed, 2025-12-18 to 2026-01-05 · 848 mi

This flight has been on time less than half the time (28%) — expect a real chance of a delay.

UA4652 covers more than one route in the data window — the stats below are for ASE → SFO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
28%
Median delay
+69 min
90th percentile
+177 min
Cancellation rate
5%

How often is UA4652 on time?

Across 19 flights on ASE → SFO from 2025-12-18 to 2026-01-05, UA4652 arrived within 15 minutes of schedule 28% of the time. The median arrival delay was +69 min, and the worst 10% of flights arrived +177 min or later. 5% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time528%
16-30 min00%
31-60 min422%
61-120 min633%
2+ hrs317%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121338%+47 min
2026-0150%+259 min

Performance by day of week

DayFlightsOn-time
Mon333%
Tue250%
Wed250%
Thu30%
Fri333%
Sat20%
Sun333%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…