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(UA) United Airlines 8551 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-2025

(DCA) Ronald Reagan Washington National Airport

Washington, DC, US

(YYZ) Toronto Pearson International Airport

Toronto, ON, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
38
68%
Late
2
4%
Very Late
3
5%
Excessive
11
20%
Cancelled
2
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
56
Total Delays ( > 1 min )
22
Codeshares
56
Average Delay (min.)
62.40909090909091
Standard Deviation
52.7
Min
0
Max
166

UA 8551 On-Time Performance Details

Overall Rating
0.2 of 5
Very Poor
Percentage On-Time 68%
Average Delay Time 62.40909090909091 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.2 shows that this flight has on-time performance characteristics better than 2% of all other flights in the FlightStats database.
On-Time Performance Rating
0.3 of 5
Very Poor
Percentage On-Time 68%
This flight has an on-time performance of 68%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 5% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 62.40909090909091 min
This flight has an average delay of 62.40909090909091 minutes with a standard deviation of 52.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.