WN577 STL → RSW

Southwest Airlines · St. Louis, MO to Fort Myers, FL · 25 flights observed, 2026-03-05 to 2026-04-06 · 979 mi

WN577 covers more than one route in the data window — the stats below are for STL → RSW, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
65%
Median delay
+5 min
90th percentile
+31 min
Cancellation rate
4%

How often is WN577 on time?

Across 25 flights on STL → RSW from 2026-03-05 to 2026-04-06, WN577 arrived within 15 minutes of schedule 65% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +31 min or later. 4% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1565%
16-30 min522%
31-60 min29%
61-120 min14%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-031963%+11 min
2026-04475%+13 min

Performance by day of week

DayFlightsOn-time
Mon367%
TueNo data—
WedNo data—
Thu560%
Fri560%
Sat560%
Sun580%

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