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(UA) United Airlines 4398 On-Time Performance Rating

Date Range:

01-Jun-2026 to 31-Jul-2026

(EWR) Newark Liberty International Airport

Newark, NJ, US

(YOW) Ottawa Macdonald-Cartier International Airport

Ottawa, ON, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
55
87%
Late
4
6%
Very Late
2
3%
Excessive
0
0%
Cancelled
0
0%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
10
Codeshares
61
Average Delay (min.)
16.9
Standard Deviation
12.8
Min
0
Max
39

UA 4398 On-Time Performance Details

Overall Rating
4.7 of 5
Very Good
Percentage On-Time 90%
Average Delay Time 16.9 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.7 shows that this flight has on-time performance characteristics better than 92% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
4.3 of 5
Good
Average Delay Time 16.9 min
This flight has an average delay of 16.9 minutes with a standard deviation of 12.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 86% of other flights.