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 4037 IN THE AIR (OFF 3:10 PM CT, ETA 6:44 PM ET) · SCHEDULED TIME UNKNOWN

Tuesday, September 29 Today

WN 4037 · DAL → BWI

took off 3:10 PM CT · expected to land 6:44 PM ET (scheduled time unknown)

Forecast issued Tue 4:00 PM ET · 0h before departure

Arrive at BWI more than 15 minutes late?

33% chance · ±1 pts – · 24h

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

What’s moving the odds

↑ Other factors

↑ DAL is prone to delays

↑ 3pm departures from DAL are often late

↓ Tuesdays in September are usually quieter than average

↓ Mostly benign weather forecast at BWI

Weather at each end

DAL (origin) Gusts21 kt Ceilingnone (clear) Visibility10+ mi Precipnone

BWI (destination) Gusts7 kt Ceiling3,600 ft 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 4037 · DAL → BWI

Odds over time