background

(UA) United Airlines 721 On-Time Performance Rating

Date Range:

15-Jun-2025 to 15-Aug-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
47
87%
Late
1
2%
Very Late
2
4%
Excessive
3
6%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
53
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
37.8
Standard Deviation
37.8
Min
0
Max
110

UA 721 On-Time Performance Details

Overall Rating
3.9 of 5
Good
Percentage On-Time 89%
Average Delay Time 37.8 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.9 shows that this flight has on-time performance characteristics better than 76% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 89%
This flight has an on-time performance of 89%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
2.7 of 5
Average
Average Delay Time 37.8 min
This flight has an average delay of 37.8 minutes with a standard deviation of 37.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.

Other Stops for UA 721