WN643 NashvilleBNA · 20:50 PhoenixPHX · 22:25
WN643 by Southwest Airlines flies from Nashville (BNA) to Phoenix (PHX) for the Mon, Sep 14 departure.
arrival expected at PHX · on schedule
board checked 17m ago · checking again in 45s
Where the minutes go
last 4 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at BNA and PHX 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 Phoenix flights today
same route · Southwest AirlinesIf WN643 is cancelled, these are the other Southwest Airlines nonstop flights from Nashville to Phoenix 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 WN643 actually runs
Pro Flight Search has tracked every published board update for WN643 across the BNA and PHX boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 4 confirmed landings · 3/4 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how WN643 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: N8746Q, N8911Q, N8931L, N8983Q.
Board clocks recorded as BNA and PHX published them.
Planning around WN643? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN643 Nashville to Phoenix on-time performance, measured from the BNA and PHX airport boards.
https://proflightsearch.com/flight/WN643
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