background

(UA) United Airlines 8557 On-Time Performance Rating

Date Range:

15-Feb-2025 to 15-Apr-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
35
67%
Late
5
10%
Very Late
4
8%
Excessive
7
13%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
51
Total Delays ( > 1 min )
21
Codeshares
51
Average Delay (min.)
49.04761904761905
Standard Deviation
49.7
Min
0
Max
167

UA 8557 On-Time Performance Details

Overall Rating
0.2 of 5
Very Poor
Percentage On-Time 69%
Average Delay Time 49.04761904761905 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
0.1 of 5
Very Poor
Percentage On-Time 69%
This flight has an on-time performance of 69%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 3% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 49.04761904761905 min
This flight has an average delay of 49.04761904761905 minutes with a standard deviation of 49.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.