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(UA) United Airlines 555 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-2026

(EWR) Newark Liberty International Airport

Newark, NJ, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
30
86%
Late
2
6%
Very Late
1
3%
Excessive
2
6%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
35
Total Delays ( > 1 min )
5
Codeshares
0
Average Delay (min.)
89.6
Standard Deviation
122.6
Min
0
Max
308

UA 555 On-Time Performance Details

Overall Rating
2.2 of 5
Average
Percentage On-Time 86%
Average Delay Time 89.6 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 43% of all other flights in the FlightStats database.
On-Time Performance Rating
4.3 of 5
Good
Percentage On-Time 86%
This flight has an on-time performance of 86%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 86% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 89.6 min
This flight has an average delay of 89.6 minutes with a standard deviation of 122.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.

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