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(UA) United Airlines 309 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(GCM) Owen Roberts International Airport

Grand Cayman Island, KY

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
5
71%
Late
1
14%
Very Late
0
0%
Excessive
1
14%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
7
Total Delays ( > 1 min )
3
Codeshares
0
Average Delay (min.)
69.33333333333333
Standard Deviation
96.9
Min
0
Max
181

UA 309 On-Time Performance Details

Overall Rating
1.6 of 5
Average
Percentage On-Time 71%
Average Delay Time 69.33333333333333 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.6 shows that this flight has on-time performance characteristics better than 31% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 of 5
Average
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.
Delay Performance
0.9 of 5
Poor
Average Delay Time 69.33333333333333 min
This flight has an average delay of 69.33333333333333 minutes with a standard deviation of 96.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.