
(UA) United Airlines 1239 On-Time Performance Rating
Date Range:
15-Jan-2026 to 15-Mar-2026
On-Time Performance Chart
(using rounded numbers)
On-Time
19
86%
Late
1
5%
Very Late
0
0%
Excessive
1
5%
Cancelled
0
0%
Diverted
1
5%
Delay Statistics
(Aggregate Arrival Delay Statistics for this Flight)
Total Flights Observed
21
Total Delays ( > 1 min )
2
Codeshares
0
Average Delay (min.)
40
Standard Deviation
33.9
Min
0
Max
64
UA 1239 On-Time Performance Details
Other Stops for UA 1239
Origin
Destination
Rating
(IAH) Houston George Bush Intercontinental Airport
Houston, TX, US
(DEN) Denver International Airport
Denver, CO, US
4.1 Good
(JAX) Jacksonville International Airport
Jacksonville, FL, US
(ORD) Chicago O'Hare International Airport
Chicago, IL, US
0.1 Very Poor
(ORD) Chicago O'Hare International Airport
Chicago, IL, US
(RNO) Reno-Tahoe International Airport
Reno, NV, US
0.7 Poor