WN3919 MDW → SJC

Southwest Airlines · Chicago, IL to San Jose, CA · 19 flights observed, 2025-07-03 to 2025-08-04 · 1,838 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -2 min, while the worst 10% run +70 min or later.

WN3919 covers more than one route in the data window — the stats below are for MDW → SJC, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
79%
Median delay
-2 min
90th percentile
+70 min
Cancellation rate
0%

How often is WN3919 on time?

Across 19 flights on MDW → SJC from 2025-07-03 to 2025-08-04, WN3919 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +70 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1579%
16-30 min00%
31-60 min15%
61-120 min211%
2+ hrs15%

Performance by month

MonthFlightsOn-timeAvg delay
2025-071675%+18 min
2025-083100%-3 min

Performance by day of week

DayFlightsOn-time
Mon580%
TueNo data—
WedNo data—
Thu580%
Fri450%
Sat5100%
SunNo data—

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