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(UA) United Airlines 5821 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(MKE) Milwaukee Mitchell International Airport

Milwaukee, WI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
28
57%
Late
4
8%
Very Late
2
4%
Excessive
10
20%
Cancelled
2
4%
Diverted
3
6%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
46
Total Delays ( > 1 min )
19
Codeshares
46
Average Delay (min.)
57.36842105263158
Standard Deviation
44.1
Min
0
Max
149

UA 5821 On-Time Performance Details

Overall Rating
0.1 of 5
Very Poor
Percentage On-Time 61%
Average Delay Time 57.36842105263158 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.1 shows that this flight has on-time performance characteristics better than 1% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 61%
This flight has an on-time performance of 61%. 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
0.2 of 5
Very Poor
Average Delay Time 57.36842105263158 min
This flight has an average delay of 57.36842105263158 minutes with a standard deviation of 44.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.

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