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(UA) United Airlines 521 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-2025

(CLE) Cleveland Hopkins International Airport

Cleveland, OH, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
18
86%
Late
1
5%
Very Late
1
5%
Excessive
0
0%
Cancelled
1
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
21
Total Delays ( > 1 min )
2
Codeshares
0
Average Delay (min.)
33.5
Standard Deviation
12
Min
0
Max
42

UA 521 On-Time Performance Details

Overall Rating
3.3 of 5
Average
Percentage On-Time 86%
Average Delay Time 33.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.3 shows that this flight has on-time performance characteristics better than 64% of all other flights in the FlightStats database.
On-Time Performance Rating
4.2 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 84% of other flights.
Delay Performance
2.3 of 5
Average
Average Delay Time 33.5 min
This flight has an average delay of 33.5 minutes with a standard deviation of 12 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.

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