background

(WN) Southwest Airlines 1129 On-Time Performance Rating

Date Range:

01-Dec-2025 to 31-Jan-2026

(DEN) Denver International Airport

Denver, CO, US

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
33
87%
Late
3
8%
Very Late
1
3%
Excessive
1
3%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
38
Total Delays ( > 1 min )
11
Codeshares
0
Average Delay (min.)
16.272727272727273
Standard Deviation
15.4
Min
0
Max
52

WN 1129 On-Time Performance Details

Overall Rating
4.6 of 5
Very Good
Percentage On-Time 87%
Average Delay Time 16.272727272727273 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.6 shows that this flight has on-time performance characteristics better than 91% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 97% of other flights.
Delay Performance
4.3 of 5
Good
Average Delay Time 16.272727272727273 min
This flight has an average delay of 16.272727272727273 minutes with a standard deviation of 15.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 86% of other flights.

Other Stops for WN 1129