WN4064 San JuanSJU BaltimoreBWI
WN4064 by Southwest Airlines flies from San Juan (SJU) to Baltimore (BWI).
scheduled from SJU
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by BWI (Baltimore), currently flying LIFR (low instrument). For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other San Juan to Baltimore flights today
same route · Southwest AirlinesIf WN4064 is cancelled, these are the other Southwest Airlines nonstop flights from San Juan to Baltimore on the same day, with scheduled departure times in SJU local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN4064 actually runs
Pro Flight Search has tracked every published board update for WN4064 across the SJU and BWI boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at SJU and BWI.
The verdict above is that record speaking, so it reflects how WN4064 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around WN4064? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — WN4064 San Juan to Baltimore on-time performance, measured from the SJU and BWI airport boards.
https://proflightsearch.com/flight/WN4064
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