WN4060 SeattleSEA St LouisSTL

WN4060 by Southwest Airlines flies from Seattle (SEA) to St Louis (STL).

Right nowNext departure today Operates daily

10:55

scheduled from SEA

The route today

live boards

SEASeattleOn-time likelySEA delay board →

STLSt LouisOn-time likelySTL delay board →

SEA→STLevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample

37%Chance of 15+ min delay

1.4%Chance of cancellation

+9 minAvg hub delay right now

Conditions at SEA and STL 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 departures

061422

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

How WN4060 actually runs

Pro Flight Search has tracked every published board update for WN4060 across the SEA and STL boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at SEA and STL.

The verdict above is that record speaking, so it reflects how WN4060 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around WN4060? 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 — WN4060 Seattle to St Louis on-time performance, measured from the SEA and STL airport boards.

Canonical URL

https://proflightsearch.com/flight/WN4060