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(UA) United Airlines 8557 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
42
78%
Late
2
4%
Very Late
0
0%
Excessive
4
7%
Cancelled
6
11%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
54
Total Delays ( > 1 min )
13
Codeshares
54
Average Delay (min.)
37
Standard Deviation
44.5
Min
0
Max
158

UA 8557 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 78%
Average Delay Time 37 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
2.9 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 58% of other flights.
Delay Performance
1.7 of 5
Average
Average Delay Time 37 min
This flight has an average delay of 37 minutes with a standard deviation of 44.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.