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(UA) United Airlines 591 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(EGE) Eagle County Regional Airport

Vail, CO, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
11
79%
Late
2
14%
Very Late
0
0%
Excessive
0
0%
Cancelled
1
7%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
14
Total Delays ( > 1 min )
3
Codeshares
0
Average Delay (min.)
19.333333333333332
Standard Deviation
8.1
Min
0
Max
28

UA 591 On-Time Performance Details

Overall Rating
3.6 of 5
Good
Percentage On-Time 79%
Average Delay Time 19.333333333333332 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.6 shows that this flight has on-time performance characteristics better than 71% of all other flights in the FlightStats database.
On-Time Performance Rating
3.6 of 5
Good
Percentage On-Time 79%
This flight has an on-time performance of 79%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 73% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 19.333333333333332 min
This flight has an average delay of 19.333333333333332 minutes with a standard deviation of 8.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.

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