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(WN) Southwest Airlines 1399 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

(GRR) Grand Rapids Gerald R. Ford International Airport

Grand Rapids, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
18
86%
Late
1
5%
Very Late
1
5%
Excessive
1
5%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
21
Total Delays ( > 1 min )
12
Codeshares
0
Average Delay (min.)
15.75
Standard Deviation
19.9
Min
0
Max
74

WN 1399 On-Time Performance Details

Overall Rating
4.3 of 5
Good
Percentage On-Time 86%
Average Delay Time 15.75 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.3 shows that this flight has on-time performance characteristics better than 85% of all other flights in the FlightStats database.
On-Time Performance Rating
4.3 of 5
Good
Percentage On-Time 86%
This flight has an on-time performance of 86%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 86% of other flights.
Delay Performance
4.3 of 5
Good
Average Delay Time 15.75 min
This flight has an average delay of 15.75 minutes with a standard deviation of 19.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 86% of other flights.

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