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(UA) United Airlines 321 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(IAD) Washington Dulles International Airport

Dulles, VA, US

(VCE) Venice Marco Polo Airport

Venice, IT

On-Time Performance Chart

(using rounded numbers)
On-Time
46
70%
Late
5
8%
Very Late
2
3%
Excessive
5
8%
Cancelled
1
2%
Diverted
7
11%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
19
Codeshares
0
Average Delay (min.)
52.26315789473684
Standard Deviation
68.9
Min
0
Max
232

UA 321 On-Time Performance Details

Overall Rating
2.4 of 5
Average
Percentage On-Time 77%
Average Delay Time 52.26315789473684 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.4 shows that this flight has on-time performance characteristics better than 47% of all other flights in the FlightStats database.
On-Time Performance Rating
4.1 of 5
Good
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 82% of other flights.
Delay Performance
0.7 of 5
Poor
Average Delay Time 52.26315789473684 min
This flight has an average delay of 52.26315789473684 minutes with a standard deviation of 68.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 14% of other flights.