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(WN) Southwest Airlines 1478 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
23
82%
Late
2
7%
Very Late
2
7%
Excessive
1
4%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
28
Total Delays ( > 1 min )
14
Codeshares
0
Average Delay (min.)
14.571428571428571
Standard Deviation
14.3
Min
0
Max
46

WN 1478 On-Time Performance Details

Overall Rating
4.6 of 5
Very Good
Percentage On-Time 82%
Average Delay Time 14.571428571428571 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 90% of all other flights in the FlightStats database.
On-Time Performance Rating
4.5 of 5
Good
Percentage On-Time 82%
This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 90% of other flights.
Delay Performance
4.6 of 5
Very Good
Average Delay Time 14.571428571428571 min
This flight has an average delay of 14.571428571428571 minutes with a standard deviation of 14.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 92% of other flights.

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