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(WN) Southwest Airlines 4221 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(SAN) San Diego International Airport

San Diego, CA, US

(ELP) El Paso International Airport

El Paso, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
35
78%
Late
4
9%
Very Late
3
7%
Excessive
2
4%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
45
Total Delays ( > 1 min )
22
Codeshares
0
Average Delay (min.)
18.59090909090909
Standard Deviation
22.6
Min
0
Max
91

WN 4221 On-Time Performance Details

Overall Rating
4.2 of 5
Good
Percentage On-Time 78%
Average Delay Time 18.59090909090909 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.2 shows that this flight has on-time performance characteristics better than 82% of all other flights in the FlightStats database.
On-Time Performance Rating
3.8 of 5
Good
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 76% of other flights.
Delay Performance
4.5 of 5
Good
Average Delay Time 18.59090909090909 min
This flight has an average delay of 18.59090909090909 minutes with a standard deviation of 22.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 90% of other flights.

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