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(UA) United Airlines 9804 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-2025

(ZRH) Zurich Airport

Zurich, CH

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
24
63%
Late
6
16%
Very Late
4
11%
Excessive
4
11%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
38
Total Delays ( > 1 min )
25
Codeshares
38
Average Delay (min.)
23.64
Standard Deviation
20.6
Min
0
Max
83

UA 9804 On-Time Performance Details

Overall Rating
2.0 of 5
Average
Percentage On-Time 63%
Average Delay Time 23.64 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2 shows that this flight has on-time performance characteristics better than 39% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 63%
This flight has an on-time performance of 63%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 2% of other flights.
Delay Performance
3.9 of 5
Good
Average Delay Time 23.64 min
This flight has an average delay of 23.64 minutes with a standard deviation of 20.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.