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(UA) United Airlines 1598 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(DEN) Denver International Airport

Denver, CO, US

(PWM) Portland International Jetport

Portland, ME, US

On-Time Performance Chart

(using rounded numbers)
On-Time
18
69%
Late
5
19%
Very Late
1
4%
Excessive
1
4%
Cancelled
0
0%
Diverted
1
4%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
25
Total Delays ( > 1 min )
13
Codeshares
0
Average Delay (min.)
22.846153846153847
Standard Deviation
28.8
Min
0
Max
113

UA 1598 On-Time Performance Details

Overall Rating
3.0 of 5
Average
Percentage On-Time 72%
Average Delay Time 22.846153846153847 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3 shows that this flight has on-time performance characteristics better than 59% of all other flights in the FlightStats database.
On-Time Performance Rating
2.1 of 5
Average
Percentage On-Time 72%
This flight has an on-time performance of 72%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 42% of other flights.
Delay Performance
3.9 of 5
Good
Average Delay Time 22.846153846153847 min
This flight has an average delay of 22.846153846153847 minutes with a standard deviation of 28.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.

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