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 3823 IN THE AIR (OFF 5:56 PM ET, ETA 6:59 PM ET) · SCHEDULED TIME UNKNOWN

Tuesday, September 29 Today

WN 3823 · BOS → BWI

took off 5:56 PM ET · expected to land 6:59 PM ET (scheduled time unknown)

Forecast issued Tue 4:00 PM ET · 2h before departure

Arrive at BWI more than 15 minutes late?

46% chance · ±0 pts +3 pts · 24h

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

What’s moving the odds

↑ 5pm departures from BOS are often late

↑ Other factors

↑ Later flights pick up delays from earlier in the day

↓ Tuesdays in September are usually quieter than average

↓ Mostly benign weather forecast at BWI

Weather at each end

BOS (origin) Gusts11 kt Ceiling600 ft Visibility1.5 mi Precip0.01 in

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 3823 · BOS → BWI

Odds over time