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(UA) United Airlines 5591 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(YYZ) Toronto Pearson International Airport

Toronto, ON, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
1
13%
Late
2
25%
Very Late
1
13%
Excessive
3
38%
Cancelled
1
13%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
8
Total Delays ( > 1 min )
6
Codeshares
8
Average Delay (min.)
56.333333333333336
Standard Deviation
38.7
Min
0
Max
115

UA 5591 On-Time Performance Details

Overall Rating
0.4 of 5
Very Poor
Percentage On-Time 13%
Average Delay Time 56.333333333333336 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.4 shows that this flight has on-time performance characteristics better than 7% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 13%
This flight has an on-time performance of 13%. 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
0.8 of 5
Poor
Average Delay Time 56.333333333333336 min
This flight has an average delay of 56.333333333333336 minutes with a standard deviation of 38.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.

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