background

(UA) United Airlines 1665 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(ONT) Ontario International Airport

Ontario, CA, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
8
50%
Late
2
13%
Very Late
1
6%
Excessive
5
31%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
16
Total Delays ( > 1 min )
9
Codeshares
0
Average Delay (min.)
55.666666666666664
Standard Deviation
40.1
Min
0
Max
121

UA 1665 On-Time Performance Details

Overall Rating
0.5 of 5
Very Poor
Percentage On-Time 50%
Average Delay Time 55.666666666666664 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.5 shows that this flight has on-time performance characteristics better than 8% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 50%
This flight has an on-time performance of 50%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 2% of other flights.
Delay Performance
0.8 of 5
Poor
Average Delay Time 55.666666666666664 min
This flight has an average delay of 55.666666666666664 minutes with a standard deviation of 40.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.

Other Stops for UA 1665