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(UA) United Airlines 1851 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(MSN) Dane County Regional Airport

Madison, WI, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
5
63%
Late
1
13%
Very Late
0
0%
Excessive
1
13%
Cancelled
1
13%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
8
Total Delays ( > 1 min )
5
Codeshares
0
Average Delay (min.)
21.8
Standard Deviation
29
Min
0
Max
71

UA 1851 On-Time Performance Details

Overall Rating
2.2 of 5
Average
Percentage On-Time 63%
Average Delay Time 21.8 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 43% of all other flights in the FlightStats database.
On-Time Performance Rating
0.9 of 5
Poor
Percentage On-Time 63%
This flight has an on-time performance of 63%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 18% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 21.8 min
This flight has an average delay of 21.8 minutes with a standard deviation of 29 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.

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