(UA) United Airlines 520 On-Time Performance Rating

Date Range:

01-Dec-2025 to 31-Jan-2026

(LAX) Los Angeles International Airport

Los Angeles, CA, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

82%

Late

11%

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

20.285714285714285

Standard Deviation

20.1

Min

Max

UA 520 On-Time Performance Details

Overall Rating

4.3 of 5

Good

Percentage On-Time 85%

Average Delay Time 20.285714285714285 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.3 shows that this flight has on-time performance characteristics better than 84% of all other flights in the FlightStats database.

On-Time Performance Rating

4.7 of 5

Very Good

Percentage On-Time 85%

This flight has an on-time performance of 85%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 93% of other flights.

Delay Performance

3.8 of 5

Good

Average Delay Time 20.285714285714285 min

This flight has an average delay of 20.285714285714285 minutes with a standard deviation of 20.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.