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(UA) United Airlines 4440 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(BUF) Buffalo Niagara International Airport

Buffalo, NY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
18
90%
Late
1
5%
Very Late
0
0%
Excessive
1
5%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
20
Total Delays ( > 1 min )
4
Codeshares
20
Average Delay (min.)
51.5
Standard Deviation
78.4
Min
0
Max
169

UA 4440 On-Time Performance Details

Overall Rating
2.9 of 5
Average
Percentage On-Time 90%
Average Delay Time 51.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 57% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 of 5
Very Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 93% of other flights.
Delay Performance
1.1 of 5
Poor
Average Delay Time 51.5 min
This flight has an average delay of 51.5 minutes with a standard deviation of 78.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 21% of other flights.

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