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(WN) Southwest Airlines 4279 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(TUL) Tulsa International Airport

Tulsa, OK, US

On-Time Performance Chart

(using rounded numbers)
On-Time
12
52%
Late
5
22%
Very Late
3
13%
Excessive
3
13%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
23
Total Delays ( > 1 min )
19
Codeshares
0
Average Delay (min.)
29.526315789473685
Standard Deviation
38.7
Min
0
Max
160

WN 4279 On-Time Performance Details

Overall Rating
1.6 of 5
Average
Percentage On-Time 52%
Average Delay Time 29.526315789473685 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.6 shows that this flight has on-time performance characteristics better than 30% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 52%
This flight has an on-time performance of 52%. 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
3.1 of 5
Average
Average Delay Time 29.526315789473685 min
This flight has an average delay of 29.526315789473685 minutes with a standard deviation of 38.7 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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