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(WN) Southwest Airlines 1138 On-Time Performance Rating

Date Range:

01-Jun-2026 to 31-Jul-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

On-Time Performance Chart

(using rounded numbers)
On-Time
5
45%
Late
1
9%
Very Late
1
9%
Excessive
4
36%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
11
Total Delays ( > 1 min )
7
Codeshares
0
Average Delay (min.)
61.285714285714285
Standard Deviation
46.7
Min
0
Max
131

WN 1138 On-Time Performance Details

Overall Rating
0.5 of 5
Very Poor
Percentage On-Time 46%
Average Delay Time 61.285714285714285 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
0.1 of 5
Very Poor
Percentage On-Time 46%
This flight has an on-time performance of 46%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 2% of other flights.
Delay Performance
0.8 of 5
Poor
Average Delay Time 61.285714285714285 min
This flight has an average delay of 61.285714285714285 minutes with a standard deviation of 46.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.

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