WN3109 MDW → FLL

Southwest Airlines · Chicago, IL to Fort Lauderdale, FL · 33 flights observed, 2026-03-05 to 2026-04-06 · 1,167 mi

This flight's reliability varies a lot by day of week — 80% on-time on Fridays vs. 20% on Sundays.

WN3109 covers more than one route in the data window — the stats below are for MDW → FLL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
66%
Median delay
-2 min
90th percentile
+46 min
Cancellation rate
3%

How often is WN3109 on time?

Across 33 flights on MDW → FLL from 2026-03-05 to 2026-04-06, WN3109 arrived within 15 minutes of schedule 66% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +46 min or later. 3% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2166%
16-30 min516%
31-60 min516%
61-120 min00%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2026-032662%+8 min
2026-04683%+7 min

Performance by day of week

DayFlightsOn-time
Mon560%
Tue475%
Wed475%
Thu475%
Fri580%
Sat580%
Sun520%

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