WN4008 SAT → MDW

Southwest Airlines · San Antonio, TX to Chicago, IL · 15 flights observed, 2025-07-03 to 2025-08-04 · 1,036 mi

This flight's reliability varies a lot by day of week — 100% on-time on Mondays vs. 60% on Fridays.

WN4008 covers more than one route in the data window — the stats below are for SAT → MDW, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
80%
Median delay
-1 min
90th percentile
+22 min
Cancellation rate
0%

How often is WN4008 on time?

Across 15 flights on SAT → MDW from 2025-07-03 to 2025-08-04, WN4008 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +22 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1280%
16-30 min320%
31-60 min00%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-071377%+4 min
2025-082100%-1 min

Performance by day of week

DayFlightsOn-time
Mon5100%
TueNo data—
WedNo data—
Thu580%
Fri560%
SatNo data—
SunNo data—

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