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(UA) United Airlines 1155 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(SMF) Sacramento International Airport

Sacramento, CA, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
19
68%
Late
5
18%
Very Late
3
11%
Excessive
1
4%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
28
Total Delays ( > 1 min )
12
Codeshares
0
Average Delay (min.)
24.666666666666668
Standard Deviation
19.4
Min
0
Max
70

UA 1155 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 68%
Average Delay Time 24.666666666666668 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 49% of all other flights in the FlightStats database.
On-Time Performance Rating
1.2 of 5
Poor
Percentage On-Time 68%
This flight has an on-time performance of 68%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 24% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 24.666666666666668 min
This flight has an average delay of 24.666666666666668 minutes with a standard deviation of 19.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.

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