background

(LX) Swiss 4639 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(YYZ) Toronto Pearson International Airport

Toronto, ON, CA

(YOW) Ottawa Macdonald-Cartier International Airport

Ottawa, ON, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
14
31%
Late
7
16%
Very Late
6
13%
Excessive
16
36%
Cancelled
1
2%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
44
Total Delays ( > 1 min )
34
Codeshares
44
Average Delay (min.)
43.088235294117645
Standard Deviation
29.6
Min
0
Max
129

LX 4639 On-Time Performance Details

Overall Rating
0.7 of 5
Poor
Percentage On-Time 32%
Average Delay Time 43.088235294117645 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.7 shows that this flight has on-time performance characteristics better than 13% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 32%
This flight has an on-time performance of 32%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
1.4 of 5
Poor
Average Delay Time 43.088235294117645 min
This flight has an average delay of 43.088235294117645 minutes with a standard deviation of 29.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.