WN3109 MiamiMIA · 05:20 HoustonHOU · 07:05
WN3109 by Southwest Airlines flies from Miami (MIA) to Houston (HOU).
scheduled from MIA
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by MIA (Miami), currently flying MVFR (marginal visual). 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 Miami to Houston flights today
same route · Southwest AirlinesIf WN3109 is cancelled, these are the other Southwest Airlines nonstop flights from Miami to Houston on the same day, with scheduled departure times in MIA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN3109 actually runs
Pro Flight Search has tracked every published board update for WN3109 across the MIA and HOU boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left a little late (~18 min) but landed about 17 min early. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN3109 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N8927Q, N8511K.
Board clocks recorded as MIA and HOU published them.
Planning around WN3109? 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 — WN3109 Miami to Houston on-time performance, measured from the MIA and HOU airport boards.
https://proflightsearch.com/flight/WN3109
.