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(UA) United Airlines 3599 On-Time Performance Rating

Date Range:

01-Apr-2026 to 31-May-2026

(EWR) Newark Liberty International Airport

Newark, NJ, US

(PWM) Portland International Jetport

Portland, ME, US

On-Time Performance Chart

(using rounded numbers)
On-Time
29
85%
Late
0
0%
Very Late
0
0%
Excessive
4
12%
Cancelled
0
0%
Diverted
1
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
33
Total Delays ( > 1 min )
7
Codeshares
33
Average Delay (min.)
77.71428571428571
Standard Deviation
69.6
Min
0
Max
168

UA 3599 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 88%
Average Delay Time 77.71428571428571 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 45% of all other flights in the FlightStats database.
On-Time Performance Rating
4.5 of 5
Good
Percentage On-Time 88%
This flight has an on-time performance of 88%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 90% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 77.71428571428571 min
This flight has an average delay of 77.71428571428571 minutes with a standard deviation of 69.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.

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