WN819 BostonBOS · 17:40 St LouisSTL · 19:55
WN819 by Southwest Airlines flies from Boston (BOS) to St Louis (STL) for the Wed, Oct 21 departure.
departs BOS · 16 min late
board checked 18m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at BOS and STL are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. 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 Boston to St Louis flights today
same route · Southwest AirlinesIf WN819 is cancelled, these are the other Southwest Airlines nonstop flights from Boston to St Louis on the same day, with scheduled departure times in BOS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN819 actually runs
Pro Flight Search has tracked every published board update for WN819 across the BOS and STL boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +8 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how WN819 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: N8908Q.
Board clocks recorded as BOS and STL published them.
Planning around WN819? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN819 Boston to St Louis on-time performance, measured from the BOS and STL airport boards.
https://proflightsearch.com/flight/WN819
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