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(UA) United Airlines 3639 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(CLE) Cleveland Hopkins International Airport

Cleveland, OH, US

On-Time Performance Chart

(using rounded numbers)
On-Time
31
66%
Late
5
11%
Very Late
1
2%
Excessive
7
15%
Cancelled
3
6%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
47
Total Delays ( > 1 min )
22
Codeshares
47
Average Delay (min.)
38.45454545454545
Standard Deviation
48.8
Min
0
Max
217

UA 3639 On-Time Performance Details

Overall Rating
0.9 of 5
Poor
Percentage On-Time 66%
Average Delay Time 38.45454545454545 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
0.2 of 5
Very Poor
Percentage On-Time 66%
This flight has an on-time performance of 66%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 4% of other flights.
Delay Performance
1.5 of 5
Poor
Average Delay Time 38.45454545454545 min
This flight has an average delay of 38.45454545454545 minutes with a standard deviation of 48.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.

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