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(UA) United Airlines 646 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
27
73%
Late
4
11%
Very Late
3
8%
Excessive
2
5%
Cancelled
1
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
37
Total Delays ( > 1 min )
25
Codeshares
0
Average Delay (min.)
20.2
Standard Deviation
26.7
Min
0
Max
109

UA 646 On-Time Performance Details

Overall Rating
2.9 of 5
Average
Percentage On-Time 73%
Average Delay Time 20.2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 57% of all other flights in the FlightStats database.
On-Time Performance Rating
1.5 of 5
Poor
Percentage On-Time 73%
This flight has an on-time performance of 73%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 31% of other flights.
Delay Performance
4.3 of 5
Good
Average Delay Time 20.2 min
This flight has an average delay of 20.2 minutes with a standard deviation of 26.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 86% of other flights.

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