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(UA) United Airlines 3638 On-Time Performance Rating

Date Range:

15-Feb-2025 to 15-Apr-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(PWM) Portland International Jetport

Portland, ME, US

On-Time Performance Chart

(using rounded numbers)
On-Time
26
90%
Late
1
3%
Very Late
0
0%
Excessive
2
7%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
29
Total Delays ( > 1 min )
11
Codeshares
29
Average Delay (min.)
24.727272727272727
Standard Deviation
34
Min
0
Max
93

UA 3638 On-Time Performance Details

Overall Rating
4.0 of 5
Good
Percentage On-Time 90%
Average Delay Time 24.727272727272727 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4 shows that this flight has on-time performance characteristics better than 79% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 of 5
Very Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 93% of other flights.
Delay Performance
3.3 of 5
Average
Average Delay Time 24.727272727272727 min
This flight has an average delay of 24.727272727272727 minutes with a standard deviation of 34 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

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