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(UA) United Airlines 5591 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-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
20
57%
Late
6
17%
Very Late
2
6%
Excessive
4
11%
Cancelled
3
9%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
35
Total Delays ( > 1 min )
23
Codeshares
35
Average Delay (min.)
29.434782608695652
Standard Deviation
42.9
Min
0
Max
180

UA 5591 On-Time Performance Details

Overall Rating
1.7 of 5
Average
Percentage On-Time 57%
Average Delay Time 29.434782608695652 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 32% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 57%
This flight has an on-time performance of 57%. 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
3.3 of 5
Average
Average Delay Time 29.434782608695652 min
This flight has an average delay of 29.434782608695652 minutes with a standard deviation of 42.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

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