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(UA) United Airlines 3638 On-Time Performance Rating

Date Range:

01-Dec-2025 to 31-Jan-2026

(RIC) Richmond International Airport

Richmond, VA, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
65%
Late
3
12%
Very Late
1
4%
Excessive
1
4%
Cancelled
4
15%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
26
Total Delays ( > 1 min )
6
Codeshares
26
Average Delay (min.)
23.666666666666668
Standard Deviation
16.9
Min
0
Max
52

UA 3638 On-Time Performance Details

Overall Rating
2.2 of 5
Average
Percentage On-Time 65%
Average Delay Time 23.666666666666668 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 43% of all other flights in the FlightStats database.
On-Time Performance Rating
0.9 of 5
Poor
Percentage On-Time 65%
This flight has an on-time performance of 65%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 18% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 23.666666666666668 min
This flight has an average delay of 23.666666666666668 minutes with a standard deviation of 16.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.