Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

SOUTHWEST · FLIGHT WN 3107 SCHEDULED · SCHEDULED TIME UNKNOWN

Sunday, October 4 Today

WN 3107 · MDW → STL

departs 12:05 PM CT · arrives 12:45 PM CT

Forecast issued Sun 11:00 AM ET · 2h before departure

Arrive at STL more than 15 minutes late?

17% chance · ±0 pts +5 pts · 24h

HOW SURE WE ARE High. The odds now come mostly from live FAA and airport data.

What’s moving the odds

↑ Other factors

↑ 12pm departures from MDW are often late

↑ MDW is busy at that time

↓ Mostly benign weather forecast at MDW

↓ Mostly benign weather forecast at STL

Weather at each end

MDW (origin) Gusts11 kt Ceilingnone (clear) Visibility10+ mi Precipnone

STL (destination) Gusts10 kt Ceilingnone (clear) Visibility10+ mi Precipnone

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

WN 3107 · MDW → STL

Odds over time