(UA) United Airlines 520 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(MCO) Orlando International Airport

Orlando, FL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

82%

Late

Very Late

Excessive

14%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

64.4

Standard Deviation

52.6

Min

Max

127

UA 520 On-Time Performance Details

Overall Rating

2.1 of 5

Average

Percentage On-Time 82%

Average Delay Time 64.4 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.1 shows that this flight has on-time performance characteristics better than 41% of all other flights in the FlightStats database.

On-Time Performance Rating

3.6 of 5

Good

Percentage On-Time 82%

This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 73% of other flights.

Delay Performance

0.6 of 5

Poor

Average Delay Time 64.4 min

This flight has an average delay of 64.4 minutes with a standard deviation of 52.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 12% of other flights.