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 1643 IN THE AIR (OFF 4:43 PM ET, ETA 5:54 PM ET) · SCHEDULED TIME UNKNOWN

Monday, October 5 Today

WN 1643 · CHS → BWI

took off 4:43 PM ET · expected to land 5:54 PM ET (scheduled time unknown)

Forecast issued Mon 4:00 PM ET · 1h before departure

Arrive at BWI more than 15 minutes late?

24% chance · ±0 pts +8 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

↑ 4pm departures from CHS are often late

↑ Arrivals into BWI at that hour are often late

↓ Mondays in October are usually quieter than average

↓ BWI usually runs smoothly

Weather at each end

CHS (origin) Gusts10 kt Ceiling300 ft Visibility1 mi Precip1.29 in

BWI (destination) Gusts22 kt Ceiling900 ft Visibility6 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 1643 · CHS → BWI

Odds over time