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(UA) United Airlines 8639 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(YYZ) Toronto Pearson International Airport

Toronto, ON, CA

(AUS) Austin-Bergstrom International Airport

Austin, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
42
71%
Late
6
10%
Very Late
1
2%
Excessive
5
8%
Cancelled
5
8%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
59
Total Delays ( > 1 min )
23
Codeshares
59
Average Delay (min.)
33.30434782608695
Standard Deviation
50.1
Min
0
Max
228

UA 8639 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 71%
Average Delay Time 33.30434782608695 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
1.7 of 5
Average
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 34% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 33.30434782608695 min
This flight has an average delay of 33.30434782608695 minutes with a standard deviation of 50.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.