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(UA) United Airlines 721 On-Time Performance Rating

Date Range:

15-Aug-2025 to 15-Oct-2025

(BOS) Boston Logan International Airport

Boston, MA, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
42
72%
Late
4
7%
Very Late
1
2%
Excessive
9
16%
Cancelled
2
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
58
Total Delays ( > 1 min )
34
Codeshares
0
Average Delay (min.)
38.294117647058826
Standard Deviation
55.7
Min
0
Max
244

UA 721 On-Time Performance Details

Overall Rating
1.0 of 5
Poor
Percentage On-Time 72%
Average Delay Time 38.294117647058826 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1 shows that this flight has on-time performance characteristics better than 19% of all other flights in the FlightStats database.
On-Time Performance Rating
1.1 of 5
Poor
Percentage On-Time 72%
This flight has an on-time performance of 72%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 21% of other flights.
Delay Performance
0.9 of 5
Poor
Average Delay Time 38.294117647058826 min
This flight has an average delay of 38.294117647058826 minutes with a standard deviation of 55.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.

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