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(WN) Southwest Airlines 3431 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(PHL) Philadelphia International Airport

Philadelphia, PA, US

(MDW) Chicago Midway International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
10
67%
Late
2
13%
Very Late
1
7%
Excessive
1
7%
Cancelled
1
7%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
15
Total Delays ( > 1 min )
11
Codeshares
0
Average Delay (min.)
26.636363636363637
Standard Deviation
42.1
Min
0
Max
150

WN 3431 On-Time Performance Details

Overall Rating
2.1 of 5
Average
Percentage On-Time 67%
Average Delay Time 26.636363636363637 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.1 shows that this flight has on-time performance characteristics better than 40% of all other flights in the FlightStats database.
On-Time Performance Rating
0.8 of 5
Poor
Percentage On-Time 67%
This flight has an on-time performance of 67%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.
Delay Performance
3.3 of 5
Average
Average Delay Time 26.636363636363637 min
This flight has an average delay of 26.636363636363637 minutes with a standard deviation of 42.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.