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(UA) United Airlines 8504 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-2025

(SFO) San Francisco International Airport

San Francisco, CA, US

(YVR) Vancouver International Airport

Vancouver, BC, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
40
87%
Late
1
2%
Very Late
1
2%
Excessive
4
9%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
46
Total Delays ( > 1 min )
15
Codeshares
46
Average Delay (min.)
47.6
Standard Deviation
80.7
Min
0
Max
285

UA 8504 On-Time Performance Details

Overall Rating
2.8 of 5
Average
Percentage On-Time 87%
Average Delay Time 47.6 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.8 shows that this flight has on-time performance characteristics better than 54% of all other flights in the FlightStats database.
On-Time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 96% of other flights.
Delay Performance
0.7 of 5
Poor
Average Delay Time 47.6 min
This flight has an average delay of 47.6 minutes with a standard deviation of 80.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 14% of other flights.