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(UA) United Airlines 4520 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(EWR) Newark Liberty International Airport

Newark, NJ, US

(GSO) Piedmont Triad International Airport

Greensboro/High Point, NC, US

On-Time Performance Chart

(using rounded numbers)
On-Time
8
35%
Late
0
0%
Very Late
1
4%
Excessive
6
26%
Cancelled
8
35%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
23
Total Delays ( > 1 min )
13
Codeshares
23
Average Delay (min.)
48.76923076923077
Standard Deviation
45.7
Min
0
Max
148

UA 4520 On-Time Performance Details

Overall Rating
0.6 of 5
Poor
Percentage On-Time 35%
Average Delay Time 48.76923076923077 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.6 shows that this flight has on-time performance characteristics better than 10% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 35%
This flight has an on-time performance of 35%. 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
1.1 of 5
Poor
Average Delay Time 48.76923076923077 min
This flight has an average delay of 48.76923076923077 minutes with a standard deviation of 45.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 21% of other flights.

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