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(UA) United Airlines 4551 On-Time Performance Rating

Date Range:

01-Apr-2025 to 31-May-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
17
59%
Late
5
17%
Very Late
1
3%
Excessive
6
21%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
29
Total Delays ( > 1 min )
17
Codeshares
29
Average Delay (min.)
95.76470588235294
Standard Deviation
135.9
Min
0
Max
411

UA 4551 On-Time Performance Details

Overall Rating
0.0 of 5
Very Poor
Percentage On-Time 59%
Average Delay Time 95.76470588235294 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 59%
This flight has an on-time performance of 59%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 1% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 95.76470588235294 min
This flight has an average delay of 95.76470588235294 minutes with a standard deviation of 135.9 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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