WN5143 BaltimoreBWI · 15:15 DenverDEN · 16:15
WN5143 by Southwest Airlines flies from Baltimore (BWI) to Denver (DEN) for the Mon, Sep 7 departure.
Same number through BWI → MDW → DEN
arrival expected at DEN · on schedule
board checked 42m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at BWI and DEN 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 Baltimore to Denver flights today
same route · Southwest AirlinesIf WN5143 is cancelled, these are the other Southwest Airlines nonstop flights from Baltimore to Denver on the same day, with scheduled departure times in BWI local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN5143 actually runs
Pro Flight Search has tracked every published board update for WN5143 across the BWI and DEN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: left heavily delayed (~63 min) but landed noticeably late (~38 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how WN5143 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: N8978G.
Board clocks recorded as BWI and DEN published them.
Planning around WN5143? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN5143 Baltimore to Denver on-time performance, measured from the BWI and DEN airport boards.
https://proflightsearch.com/flight/WN5143
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