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(UA) United Airlines 4521 On-Time Performance Rating

Date Range:

15-Jun-2025 to 15-Aug-2025

(EWR) Newark Liberty International Airport

Newark, NJ, US

(ORF) Norfolk International Airport

Norfolk, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
29
47%
Late
4
6%
Very Late
3
5%
Excessive
19
31%
Cancelled
4
6%
Diverted
3
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
59
Total Delays ( > 1 min )
32
Codeshares
59
Average Delay (min.)
94.25
Standard Deviation
102.9
Min
0
Max
469

UA 4521 On-Time Performance Details

Overall Rating
0.0 of 5
Very Poor
Percentage On-Time 49%
Average Delay Time 94.25 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0 shows that this flight has on-time performance characteristics better than 0% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 49%
This flight has an on-time performance of 49%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 94.25 min
This flight has an average delay of 94.25 minutes with a standard deviation of 102.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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