WN3315 ChicagoMDW BostonBOS
WN3315 by Southwest Airlines flies from Chicago (MDW) to Boston (BOS).
scheduled from MDW
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at MDW and BOS 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 Chicago to Boston flights today
same route · Southwest AirlinesIf WN3315 is cancelled, these are the other Southwest Airlines nonstop flights from Chicago to Boston on the same day, with scheduled departure times in MDW local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN3315 actually runs
Pro Flight Search has tracked every published board update for WN3315 across the MDW and BOS boards: schedule changes, gate pushes and actual clocks. Combined risk score: 11.6/100. Based on airport operations, weather, and cached board history at MDW and BOS.
The verdict above is that record speaking, so it reflects how WN3315 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around WN3315? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — WN3315 Chicago to Boston on-time performance, measured from the MDW and BOS airport boards.
https://proflightsearch.com/flight/WN3315
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