WN4987Southwest Airlines · MDW → JAX
live · 14m ago
Route confirmed Southwest Airlines

WN4987 ChicagoMDW JacksonvilleJAX

WN4987 by Southwest Airlines flies from Chicago (MDW) to Jacksonville (JAX).

Right nowNext departure today Operates daily
20:30

scheduled from MDW

The route today

live boards
MDWChicagoOn-time likelyMDW delay board →
JAXJacksonvilleModerate riskJAX delay board →
MDW→JAXevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
39%Chance of 15+ min delay
0.7%Chance of cancellation
+9 minTypical airport delay in this weather

Conditions at MDW and JAX are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records 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 →

Tomorrow at MDW

Forecast

Sun 15 Nov, local date

High9°Clikely 8°C to 11°C
Low0°Clikely −2°C to 2°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at JAX

Forecast

Sun 15 Nov, local date

High18°Clikely 16°C to 20°C
Low5°Clikely 3°C to 7°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Chicago to Jacksonville flights today

same route · Southwest Airlines
WN2041departs 12:50
WN3544departs 15:40
WN2178departs 18:40

If WN4987 is cancelled, these are the other Southwest Airlines nonstop flights from Chicago to Jacksonville on the same day, with scheduled departure times in MDW local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How WN4987 actually runs

Pro Flight Search has tracked every published board update for WN4987 across the MDW and JAX boards: schedule changes, gate pushes and actual clocks. Combined risk score: 19.5/100. Based on airport operations, weather, and cached board history at MDW and JAX.

The verdict above is that record speaking, so it reflects how WN4987 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around WN4987? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: WN4987 Chicago to Jacksonville on-time performance, measured from the MDW and JAX airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4987
How we measure this →