WN4577 TPA → MDW

Southwest Airlines · Tampa, FL to Chicago, IL · 15 flights observed, 2026-03-05 to 2026-04-06 · 997 mi

This flight's reliability varies a lot by day of week — 80% on-time on Mondays vs. 40% on Fridays.

WN4577 covers more than one route in the data window — the stats below are for TPA → MDW, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
57%
Median delay
+13 min
90th percentile
+133 min
Cancellation rate
7%

How often is WN4577 on time?

Across 15 flights on TPA → MDW from 2026-03-05 to 2026-04-06, WN4577 arrived within 15 minutes of schedule 57% of the time. The median arrival delay was +13 min, and the worst 10% of flights arrived +133 min or later. 7% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time857%
16-30 min17%
31-60 min17%
61-120 min17%
2+ hrs321%

Performance by month

MonthFlightsOn-timeAvg delay
2026-031258%+41 min
2026-04250%+7 min

Performance by day of week

DayFlightsOn-time
Mon580%
TueNo data—
WedNo data—
Thu450%
Fri540%
SatNo data—
SunNo data—

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