background

(UA) United Airlines 5540 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-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
6
46%
Late
0
0%
Very Late
3
23%
Excessive
3
23%
Cancelled
1
8%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
13
Total Delays ( > 1 min )
8
Codeshares
13
Average Delay (min.)
40.75
Standard Deviation
27.2
Min
0
Max
80

UA 5540 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 46%
Average Delay Time 40.75 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.8 shows that this flight has on-time performance characteristics better than 14% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 46%
This flight has an on-time performance of 46%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
1.5 of 5
Poor
Average Delay Time 40.75 min
This flight has an average delay of 40.75 minutes with a standard deviation of 27.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.

Other Stops for UA 5540