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(UA) United Airlines 959 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-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
49
80%
Late
3
5%
Very Late
1
2%
Excessive
6
10%
Cancelled
1
2%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
12
Codeshares
0
Average Delay (min.)
59.166666666666664
Standard Deviation
56.5
Min
0
Max
184

UA 959 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 82%
Average Delay Time 59.166666666666664 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 48% of all other flights in the FlightStats database.
On-Time Performance Rating
4.5 of 5
Good
Percentage On-Time 82%
This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 90% of other flights.
Delay Performance
0.4 of 5
Very Poor
Average Delay Time 59.166666666666664 min
This flight has an average delay of 59.166666666666664 minutes with a standard deviation of 56.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 8% of other flights.