WN4047Southwest Airlines · STL → BWI
updated 1h ago
Route confirmed Southwest Airlines

WN4047 St LouisSTL BaltimoreBWI

WN4047 by Southwest Airlines flies from St Louis (STL) to Baltimore (BWI).

Right nowNext departure today Operates daily
15:40

scheduled from STL

The route today

live boards
STLSt LouisOn-time likelySTL delay board →
BWIBaltimoreOn-time likelyBWI delay board →
STL→BWIevery 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
0.8%Chance of cancellation
+8 minTypical airport delay in this weather

Conditions at STL and BWI 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 STL

Forecast

Mon 16 Nov, local date

High13°Clikely 11°C to 15°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 BWI

Forecast

Mon 16 Nov, local date

High13°Clikely 11°C to 14°C
Low3°Clikely 1°C to 5°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 St Louis to Baltimore flights today

same route · Southwest Airlines
WN4124departs 06:35
WN734departs 10:15
WN2834departs 12:40
WN4080departs 17:10
WN5059departs 18:45
WN380departs 20:25

If WN4047 is cancelled, these are the other Southwest Airlines nonstop flights from St Louis to Baltimore on the same day, with scheduled departure times in STL 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 WN4047 actually runs

Pro Flight Search has tracked every published board update for WN4047 across the STL and BWI boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at STL and BWI.

The verdict above is that record speaking, so it reflects how WN4047 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around WN4047? 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: WN4047 St Louis to Baltimore on-time performance, measured from the STL and BWI airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4047
How we measure this →