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(UA) United Airlines 9643 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(STR) Stuttgart Airport

Stuttgart, DE

(LHR) London Heathrow Airport

London, EN, GB

On-Time Performance Chart

(using rounded numbers)
On-Time
29
63%
Late
8
17%
Very Late
3
7%
Excessive
6
13%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
46
Total Delays ( > 1 min )
32
Codeshares
46
Average Delay (min.)
30.25
Standard Deviation
39.5
Min
0
Max
166

UA 9643 On-Time Performance Details

Overall Rating
1.9 of 5
Average
Percentage On-Time 63%
Average Delay Time 30.25 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.9 shows that this flight has on-time performance characteristics better than 36% of all other flights in the FlightStats database.
On-Time Performance Rating
0.2 of 5
Very Poor
Percentage On-Time 63%
This flight has an on-time performance of 63%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 4% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 30.25 min
This flight has an average delay of 30.25 minutes with a standard deviation of 39.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.