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(UA) United Airlines 1583 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
48
77%
Late
6
10%
Very Late
1
2%
Excessive
6
10%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
22
Codeshares
0
Average Delay (min.)
48.04545454545455
Standard Deviation
69.3
Min
0
Max
251

UA 1583 On-Time Performance Details

Overall Rating
2.0 of 5
Average
Percentage On-Time 79%
Average Delay Time 48.04545454545455 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2 shows that this flight has on-time performance characteristics better than 38% of all other flights in the FlightStats database.
On-Time Performance Rating
3.3 of 5
Average
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 66% of other flights.
Delay Performance
0.6 of 5
Poor
Average Delay Time 48.04545454545455 min
This flight has an average delay of 48.04545454545455 minutes with a standard deviation of 69.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 12% of other flights.

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