WN2421 BostonBOS ChicagoMDW
WN2421 by Southwest Airlines flies from Boston (BOS) to Chicago (MDW).
scheduled from BOS
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by MDW (Chicago), currently flying IFR (instrument). 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 Chicago flights today
same route · Southwest AirlinesIf WN2421 is cancelled, these are the other Southwest Airlines nonstop flights from Boston to Chicago 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 WN2421 actually runs
Pro Flight Search has tracked every published board update for WN2421 across the BOS and MDW boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at BOS and MDW.
The verdict above is that record speaking, so it reflects how WN2421 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around WN2421? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — WN2421 Boston to Chicago on-time performance, measured from the BOS and MDW airport boards.
https://proflightsearch.com/flight/WN2421
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