WN853 NashvilleBNA OntarioONT
WN853 by Southwest Airlines flies from Nashville (BNA) to Ontario (ONT).
scheduled from BNA
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at BNA and ONT 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 Nashville to Ontario flights today
same route · Southwest AirlinesIf WN853 is cancelled, these are the other Southwest Airlines nonstop flights from Nashville to Ontario on the same day, with scheduled departure times in BNA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN853 actually runs
Pro Flight Search has tracked every published board update for WN853 across the BNA and ONT boards: schedule changes, gate pushes and actual clocks. Combined risk score: 23.3/100. Based on airport operations, weather, and cached board history at BNA and ONT.
The verdict above is that record speaking, so it reflects how WN853 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around WN853? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN853 Nashville to Ontario on-time performance, measured from the BNA and ONT airport boards.
https://proflightsearch.com/flight/WN853
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