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(WN) Southwest Airlines 511 On-time Performance Rating

Date Range:

01-Apr-2018 to 31-May-2018

(STL) Lambert-St. Louis International AirportSaint Louis, MO, US
(DSM) Des Moines International AirportDes Moines, IA, US
On-Time Performance Chart
(using rounded numbers)
On-Time
28
74%
Late
4
11%
Very Late
3
8%
Excessive
3
8%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
38
Total Delays ( > 1 min )
23
Codeshares
0
Average Delay (min.)
20
Standard Deviation
24.7
Min
0
Max
99
WN 511 On-time Performance Details
Overall Rating
2.8 of 5
Average
Percentage On-Time 74%
Average Delay Time 20 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.8 shows that this flight has on-time performance characteristics better than 55% of all other flights in the FlightStats database.
On-time Performance Rating
1.5 of 5
Poor
Percentage On-Time 74%
This flight has an on-time performance of 74%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 31% of other flights.
Delay Performance
4.1 of 5
Good
Average Delay Time 20 min
This flight has an average delay of 20 minutes with a standard deviation of 24.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 82% of other flights.