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(UA) United Airlines 307 On-Time Performance Rating

Date Range:

01-Sep-2026 to 31-Oct-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(SJC) San Jose Mineta International Airport

San Jose, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
28
90%
Late
0
0%
Very Late
0
0%
Excessive
3
10%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
31
Total Delays ( > 1 min )
6
Codeshares
0
Average Delay (min.)
50.166666666666664
Standard Deviation
59.8
Min
0
Max
147

UA 307 On-Time Performance Details

Overall Rating
2.9 of 5
Average
Percentage On-Time 90%
Average Delay Time 50.166666666666664 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 56% of all other flights in the FlightStats database.
On-Time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. 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
0.9 of 5
Poor
Average Delay Time 50.166666666666664 min
This flight has an average delay of 50.166666666666664 minutes with a standard deviation of 59.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.

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