(WN) Southwest Airlines 427 On-Time Performance Rating

Date Range:

01-May-2026 to 30-Jun-2026

(BDL) Bradley International Airport

Hartford, CT, US

(MDW) Chicago Midway International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

80%

Late

15%

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

48.166666666666664

Standard Deviation

126.4

Min

Max

449

WN 427 On-Time Performance Details

Overall Rating

2.0 of 5

Average

Percentage On-Time 80%

Average Delay Time 48.166666666666664 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2 shows that this flight has on-time performance characteristics better than 39% of all other flights in the FlightStats database.

On-Time Performance Rating

3.1 of 5

Average

Percentage On-Time 80%

This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 62% of other flights.

Delay Performance

0.9 of 5

Poor

Average Delay Time 48.166666666666664 min

This flight has an average delay of 48.166666666666664 minutes with a standard deviation of 126.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.