UA2638 LAX → SFO

United Airlines · Los Angeles, CA to San Francisco, CA · 16 flights observed, 2025-12-02 to 2025-12-17 · 337 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -15 min, while the worst 10% run +110 min or later.

UA2638 covers more than one route in the data window — the stats below are for LAX → SFO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
75%
Median delay
-15 min
90th percentile
+110 min
Cancellation rate
0%

How often is UA2638 on time?

Across 16 flights on LAX → SFO from 2025-12-02 to 2025-12-17, UA2638 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +110 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1275%
16-30 min00%
31-60 min16%
61-120 min16%
2+ hrs213%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121675%+14 min

Performance by day of week

DayFlightsOn-time
Mon2100%
Tue3100%
Wed367%
Thu2100%
Fri2100%
Sat250%
Sun20%

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