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(UA) United Airlines 646 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(YUL) Montreal-Trudeau International Airport

Montreal, QC, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
23
61%
Late
3
8%
Very Late
2
5%
Excessive
8
21%
Cancelled
0
0%
Diverted
2
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
36
Total Delays ( > 1 min )
17
Codeshares
0
Average Delay (min.)
45.76470588235294
Standard Deviation
35.1
Min
0
Max
132

UA 646 On-Time Performance Details

Overall Rating
0.9 of 5
Poor
Percentage On-Time 64%
Average Delay Time 45.76470588235294 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
0.5 of 5
Very Poor
Percentage On-Time 64%
This flight has an on-time performance of 64%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 10% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 45.76470588235294 min
This flight has an average delay of 45.76470588235294 minutes with a standard deviation of 35.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.

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