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(UA) United Airlines 4791 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(SBN) South Bend International Airport

South Bend, IN, US

On-Time Performance Chart

(using rounded numbers)
On-Time
25
69%
Late
5
14%
Very Late
0
0%
Excessive
6
17%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
36
Total Delays ( > 1 min )
17
Codeshares
36
Average Delay (min.)
86.70588235294117
Standard Deviation
116.4
Min
0
Max
359

UA 4791 On-Time Performance Details

Overall Rating
0.7 of 5
Poor
Percentage On-Time 69%
Average Delay Time 86.70588235294117 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.7 shows that this flight has on-time performance characteristics better than 13% of all other flights in the FlightStats database.
On-Time Performance Rating
1.4 of 5
Poor
Percentage On-Time 69%
This flight has an on-time performance of 69%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 86.70588235294117 min
This flight has an average delay of 86.70588235294117 minutes with a standard deviation of 116.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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