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(UA) United Airlines 9139 On-Time Performance Rating

Date Range:

01-Mar-2026 to 30-Apr-2026

(JNB) Johannesburg O.R. Tambo International Airport

Johannesburg, ZA

(FRA) Frankfurt Airport

Frankfurt, DE

On-Time Performance Chart

(using rounded numbers)
On-Time
41
68%
Late
11
18%
Very Late
4
7%
Excessive
1
2%
Cancelled
3
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
40
Codeshares
60
Average Delay (min.)
17.425
Standard Deviation
28.9
Min
0
Max
185

UA 9139 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 68%
Average Delay Time 17.425 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 48% of all other flights in the FlightStats database.
On-Time Performance Rating
0.2 of 5
Very 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 4% of other flights.
Delay Performance
4.7 of 5
Very Good
Average Delay Time 17.425 min
This flight has an average delay of 17.425 minutes with a standard deviation of 28.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 95% of other flights.