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(WN) Southwest Airlines 1491 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

On-Time Performance Chart

(using rounded numbers)
On-Time
12
67%
Late
3
17%
Very Late
0
0%
Excessive
3
17%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
18
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
32.8
Standard Deviation
36.8
Min
0
Max
108

WN 1491 On-Time Performance Details

Overall Rating
1.8 of 5
Average
Percentage On-Time 67%
Average Delay Time 32.8 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.8 shows that this flight has on-time performance characteristics better than 35% of all other flights in the FlightStats database.
On-Time Performance Rating
0.9 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 18% of other flights.
Delay Performance
2.7 of 5
Average
Average Delay Time 32.8 min
This flight has an average delay of 32.8 minutes with a standard deviation of 36.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.

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