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(UA) United Airlines 3521 On-Time Performance Rating

Date Range:

15-Jun-2025 to 15-Aug-2025

(PWM) Portland International Jetport

Portland, ME, US

(EWR) Newark Liberty International Airport

Newark, NJ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
32
70%
Late
1
2%
Very Late
1
2%
Excessive
10
22%
Cancelled
2
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
46
Total Delays ( > 1 min )
15
Codeshares
46
Average Delay (min.)
115.2
Standard Deviation
106.6
Min
0
Max
362

UA 3521 On-Time Performance Details

Overall Rating
1.2 of 5
Poor
Percentage On-Time 70%
Average Delay Time 115.2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.2 shows that this flight has on-time performance characteristics better than 22% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 of 5
Average
Percentage On-Time 70%
This flight has an on-time performance of 70%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 115.2 min
This flight has an average delay of 115.2 minutes with a standard deviation of 106.6 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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