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 3966 LANDED 9:29 PM CT, ~6 MIN LATE · SCHEDULED TIME UNKNOWN

Tuesday, September 29 Yesterday

WN 3966 · BNA → BHM

took off 8:54 PM CT · landed 9:29 PM CT (scheduled time unknown)

Forecast issued Tue 10:00 PM ET · 0h before departure

Arrive at BHM more than 15 minutes late?

19% chance · ±1 pts −5 pts · 24h

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

What’s moving the odds

↑ Later flights pick up delays from earlier in the day

↑ Other factors

↑ Arrivals into BHM at that hour are often late

↓ Tuesdays in September are usually quieter than average

↓ Mostly benign weather forecast at BNA

Weather at each end

BNA (origin) Gusts5 kt Ceilingnone (clear) Visibility10+ mi Precipnone

BHM (destination) Gusts8 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 3966 · BNA → BHM

Odds over time