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 3871 LANDED 4:56 PM CT, ~8 MIN LATE · SCHEDULED TIME UNKNOWN

Tuesday, September 29 Today

WN 3871 · LAS → BNA

took off 11:58 AM PT · landed 4:56 PM CT (scheduled time unknown)

Forecast issued Tue 4:00 PM ET · 1h after departure

Arrive at BNA more than 15 minutes late?

46% chance · ±2 pts – · 24h

HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.

What’s moving the odds

↑ Mostly benign weather forecast at LAS

↑ LAS is prone to delays

↑ 11am departures from LAS are often late

↓ Tuesdays in September are usually quieter than average

↓ Mostly benign weather forecast at BNA

Weather at each end

LAS (origin) Gusts23 kt Ceiling4,700 ft Visibility7 mi Precip0.07 in

BNA (destination) Gusts4 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 3871 · LAS → BNA

Odds over time