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(WN) Southwest Airlines 3421 On-Time Performance Rating

Date Range:

01-Sep-2026 to 31-Oct-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(MCI) Kansas City International Airport

Kansas City, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
19
73%
Late
4
15%
Very Late
1
4%
Excessive
2
8%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
26
Total Delays ( > 1 min )
17
Codeshares
0
Average Delay (min.)
27.41176470588235
Standard Deviation
41.8
Min
0
Max
163

WN 3421 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 73%
Average Delay Time 27.41176470588235 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 44% of all other flights in the FlightStats database.
On-Time Performance Rating
1.4 of 5
Poor
Percentage On-Time 73%
This flight has an on-time performance of 73%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
3.1 of 5
Average
Average Delay Time 27.41176470588235 min
This flight has an average delay of 27.41176470588235 minutes with a standard deviation of 41.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.

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