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 3870 IN THE AIR (OFF 8:38 AM CT, ETA 9:56 AM CT) · SCHEDULED TIME UNKNOWN

Wednesday, September 30 Today

WN 3870 · STL → MSY

took off 8:38 AM CT · expected to land 9:56 AM CT (scheduled time unknown)

Forecast issued Wed 8:00 AM ET · 2h before departure

Arrive at MSY more than 15 minutes late?

7% chance · ±0 pts +1 pt · 24h

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

What’s moving the odds

↑ Other factors

↓ Arrivals into MSY at that hour are usually not late

↓ Early flights usually leave on time

Weather at each end

STL (origin) Gusts14 kt Ceiling9,000 ft Visibility10+ mi Precipnone

MSY (destination) Gusts16 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 3870 · STL → MSY

Odds over time