background

(UA) United Airlines 499 On-time Performance Rating

Date Range:

15-Jul-2018 to 15-Sep-2018

(ORD) O'Hare International Airport

Chicago, IL, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
37
70%
Late
3
6%
Very Late
1
2%
Excessive
8
15%
Cancelled
3
6%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
52
Total Delays ( > 1 min )
14
Codeshares
0
Average Delay (min.)
51
Standard Deviation
37.5
Min
6
Max
123

UA 499 On-time Performance Details

Overall Rating
1.2 of 5
Poor
Percentage On-Time 71%
Average Delay Time 51 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.2 shows that this flight has on-time performance characteristics better than 23% of all other flights in the FlightStats database.
On-time Performance Rating
1.9 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 38% of other flights.
Delay Performance
0.5 of 5
Very Poor
Average Delay Time 51 min
This flight has an average delay of 51 minutes with a standard deviation of 37.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 10% of other flights.