WN1540 FLL → MDW

Southwest Airlines · Fort Lauderdale, FL to Chicago, IL · 57 flights observed, 2026-04-07 to 2026-06-03 · 1,167 mi

This flight's reliability varies a lot by day of week — 86% on-time on Sundays vs. 25% on Mondays.

WN1540 covers more than one route in the data window — the stats below are for FLL → MDW, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
61%
Median delay
+7 min
90th percentile
+56 min
Cancellation rate
0%

How often is WN1540 on time?

Across 57 flights on FLL → MDW from 2026-04-07 to 2026-06-03, WN1540 arrived within 15 minutes of schedule 61% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +56 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time3561%
16-30 min916%
31-60 min712%
61-120 min47%
2+ hrs24%

Performance by month

MonthFlightsOn-timeAvg delay
2026-042471%+9 min
2026-053053%+27 min
2026-06367%+11 min

Performance by day of week

DayFlightsOn-time
Mon825%
Tue956%
Wed967%
Thu863%
Fri863%
Sat875%
Sun786%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…