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(UA) United Airlines 4570 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(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
17
74%
Late
1
4%
Very Late
1
4%
Excessive
4
17%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
23
Total Delays ( > 1 min )
8
Codeshares
23
Average Delay (min.)
79
Standard Deviation
78.1
Min
0
Max
206

UA 4570 On-Time Performance Details

Overall Rating
0.9 of 5
Poor
Percentage On-Time 74%
Average Delay Time 79 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.9 shows that this flight has on-time performance characteristics better than 16% of all other flights in the FlightStats database.
On-Time Performance Rating
1.7 of 5
Average
Percentage On-Time 74%
This flight has an on-time performance of 74%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 34% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 79 min
This flight has an average delay of 79 minutes with a standard deviation of 78.1 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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