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(WN) Southwest Airlines 3151 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(MDW) Chicago Midway International Airport

Chicago, IL, US

(HOU) Houston Hobby Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
26
57%
Late
8
17%
Very Late
5
11%
Excessive
6
13%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
46
Total Delays ( > 1 min )
31
Codeshares
0
Average Delay (min.)
35.74193548387097
Standard Deviation
42.1
Min
0
Max
157

WN 3151 On-Time Performance Details

Overall Rating
0.7 of 5
Poor
Percentage On-Time 56%
Average Delay Time 35.74193548387097 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.7 shows that this flight has on-time performance characteristics better than 13% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 56%
This flight has an on-time performance of 56%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
1.4 of 5
Poor
Average Delay Time 35.74193548387097 min
This flight has an average delay of 35.74193548387097 minutes with a standard deviation of 42.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.

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