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(UA) United Airlines 959 On-Time Performance Rating

Date Range:

01-Aug-2025 to 30-Sep-2025

(LHR) London Heathrow Airport

London, EN, GB

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
53
87%
Late
4
7%
Very Late
1
2%
Excessive
2
3%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
13
Codeshares
0
Average Delay (min.)
29.46153846153846
Standard Deviation
39.7
Min
0
Max
138

UA 959 On-Time Performance Details

Overall Rating
3.8 of 5
Good
Percentage On-Time 87%
Average Delay Time 29.46153846153846 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.8 shows that this flight has on-time performance characteristics better than 75% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 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 98% of other flights.
Delay Performance
2.7 of 5
Average
Average Delay Time 29.46153846153846 min
This flight has an average delay of 29.46153846153846 minutes with a standard deviation of 39.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.