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(WN) Southwest Airlines 4121 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
0
0%
Late
0
0%
Very Late
0
0%
Excessive
2
100%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
2
Total Delays ( > 1 min )
2
Codeshares
0
Average Delay (min.)
68
Standard Deviation
21.2
Min
53
Max
83

WN 4121 On-Time Performance Details

Overall Rating
0.5 of 5
Very Poor
Percentage On-Time 0%
Average Delay Time 68 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.5 shows that this flight has on-time performance characteristics better than 8% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 0%
This flight has an on-time performance of 0%. 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
0.9 of 5
Poor
Average Delay Time 68 min
This flight has an average delay of 68 minutes with a standard deviation of 21.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.

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