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(UA) United Airlines 521 On-Time Performance Rating

Date Range:

15-Nov-2021 to 15-Jan-2022

(JFK) John F. Kennedy International Airport

New York, NY, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
53
84%
Late
2
3%
Very Late
2
3%
Excessive
2
3%
Cancelled
3
5%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
62
Total Delays ( > 1 min )
14
Codeshares
0
Average Delay (min.)
24
Standard Deviation
27.3
Min
1
Max
96

UA 521 On-Time Performance Details

Overall Rating
4.2 of 5
Good
Percentage On-Time 86%
Average Delay Time 24 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.2 shows that this flight has on-time performance characteristics better than 83% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 86%
This flight has an on-time performance of 86%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 97% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 24 min
This flight has an average delay of 24 minutes with a standard deviation of 27.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.