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(UA) United Airlines 921 On-Time Performance Rating

Date Range:

15-Jun-2025 to 15-Aug-2025

(LHR) London Heathrow Airport

London, EN, GB

(EWR) Newark Liberty International Airport

Newark, NJ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
39
64%
Late
2
3%
Very Late
1
2%
Excessive
17
28%
Cancelled
1
2%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
27
Codeshares
0
Average Delay (min.)
149
Standard Deviation
190.3
Min
0
Max
969

UA 921 On-Time Performance Details

Overall Rating
0.5 of 5
Very Poor
Percentage On-Time 65%
Average Delay Time 149 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
0.9 of 5
Poor
Percentage On-Time 65%
This flight has an on-time performance of 65%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 18% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 149 min
This flight has an average delay of 149 minutes with a standard deviation of 190.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.