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(WN) Southwest Airlines 1428 On-Time Performance Rating

Date Range:

01-Sep-2026 to 31-Oct-2026

(ONT) Ontario International Airport

Ontario, CA, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
2
50%
Late
0
0%
Very Late
2
50%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
4
Total Delays ( > 1 min )
2
Codeshares
0
Average Delay (min.)
31
Standard Deviation
1.4
Min
0
Max
32

WN 1428 On-Time Performance Details

Overall Rating
1.4 of 5
Poor
Percentage On-Time 50%
Average Delay Time 31 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.4 shows that this flight has on-time performance characteristics better than 26% of all other flights in the FlightStats database.
On-Time Performance Rating
0.4 of 5
Very Poor
Percentage On-Time 50%
This flight has an on-time performance of 50%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 8% of other flights.
Delay Performance
2.3 of 5
Average
Average Delay Time 31 min
This flight has an average delay of 31 minutes with a standard deviation of 1.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.

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