(WN) Southwest Airlines 1031 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(BOS) Boston Logan International Airport

Boston, MA, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)

On-Time

33%

Late

30%

Very Late

12%

Excessive

24%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

42.68

Standard Deviation

40.2

Min

Max

191

WN 1031 On-Time Performance Details

Overall Rating

0.5 of 5

Very Poor

Percentage On-Time 33%

Average Delay Time 42.68 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

0.0 of 5

Very Poor

Percentage On-Time 33%

This flight has an on-time performance of 33%. 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

0.9 of 5

Poor

Average Delay Time 42.68 min

This flight has an average delay of 42.68 minutes with a standard deviation of 40.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.