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(UA) United Airlines 3639 On-Time Performance Rating

Date Range:

15-Feb-2025 to 15-Apr-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(GRR) Grand Rapids Gerald R. Ford International Airport

Grand Rapids, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
25
89%
Late
1
4%
Very Late
2
7%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
28
Total Delays ( > 1 min )
4
Codeshares
28
Average Delay (min.)
27.75
Standard Deviation
14.7
Min
0
Max
44

UA 3639 On-Time Performance Details

Overall Rating
3.7 of 5
Good
Percentage On-Time 89%
Average Delay Time 27.75 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.7 shows that this flight has on-time performance characteristics better than 72% of all other flights in the FlightStats database.
On-Time Performance Rating
4.6 of 5
Very Good
Percentage On-Time 89%
This flight has an on-time performance of 89%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 92% of other flights.
Delay Performance
2.7 of 5
Average
Average Delay Time 27.75 min
This flight has an average delay of 27.75 minutes with a standard deviation of 14.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.

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