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(UA) United Airlines 558 On-time Performance Rating

Date Range:

15-May-2018 to 15-Jul-2018

(BOS) Logan International AirportBoston, MA, US
(SFO) San Francisco International AirportSan Francisco, CA, US
On-Time Performance Chart
(using rounded numbers)
On-Time
35
69%
Late
8
16%
Very Late
4
8%
Excessive
4
8%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
51
Total Delays ( > 1 min )
23
Codeshares
0
Average Delay (min.)
35
Standard Deviation
45.4
Min
3
Max
204
UA 558 On-time Performance Details
Overall Rating
1.4 of 5
Poor
Percentage On-Time 69%
Average Delay Time 35 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.4 shows that this flight has on-time performance characteristics better than 27% of all other flights in the FlightStats database.
On-time Performance Rating
1.1 of 5
Poor
Percentage On-Time 69%
This flight has an on-time performance of 69%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 21% of other flights.
Delay Performance
1.7 of 5
Average
Average Delay Time 35 min
This flight has an average delay of 35 minutes with a standard deviation of 45.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.