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(UA) United Airlines 4428 On-Time Performance Rating

Date Range:

01-Mar-2025 to 30-Apr-2025

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
21
84%
Late
1
4%
Very Late
1
4%
Excessive
1
4%
Cancelled
0
0%
Diverted
1
4%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
24
Total Delays ( > 1 min )
5
Codeshares
24
Average Delay (min.)
59.2
Standard Deviation
91.5
Min
0
Max
221

UA 4428 On-Time Performance Details

Overall Rating
2.4 of 5
Average
Percentage On-Time 88%
Average Delay Time 59.2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.4 shows that this flight has on-time performance characteristics better than 47% of all other flights in the FlightStats database.
On-Time Performance Rating
4.3 of 5
Good
Percentage On-Time 88%
This flight has an on-time performance of 88%. 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
0.5 of 5
Very Poor
Average Delay Time 59.2 min
This flight has an average delay of 59.2 minutes with a standard deviation of 91.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 10% of other flights.

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