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(WN) Southwest Airlines 3877 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(SAT) San Antonio International Airport

San Antonio, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
5
63%
Late
0
0%
Very Late
2
25%
Excessive
1
13%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
8
Total Delays ( > 1 min )
3
Codeshares
0
Average Delay (min.)
38.333333333333336
Standard Deviation
11
Min
0
Max
51

WN 3877 On-Time Performance Details

Overall Rating
1.5 of 5
Poor
Percentage On-Time 63%
Average Delay Time 38.333333333333336 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.5 shows that this flight has on-time performance characteristics better than 28% of all other flights in the FlightStats database.
On-Time Performance Rating
0.8 of 5
Poor
Percentage On-Time 63%
This flight has an on-time performance of 63%. 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
2.1 of 5
Average
Average Delay Time 38.333333333333336 min
This flight has an average delay of 38.333333333333336 minutes with a standard deviation of 11 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.

Other Stops for WN 3877