Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1673
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4 Tomorrow
WN 1673 · BWI → CHS
departs 8:05 PM ET · arrives 9:50 PM ET
Forecast issued Sat 7:00 PM ET · 25h before departure
Watch this flight
Odds over time
Arrive at CHS more than 15 minutes late?
44%
chance · ±7 pts
+2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
44%
Leave 15+ late
47%
Arrive 1h+ late
12%
Cancelled
3%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.9d
2d
Now
12h
6h
Departs
Lands
Arrive at CHS more than 15 minutes late?
Calm-weather odds: 30% · changed +2 pts in 24h
+2 pts
44%
Yes 44%
No 56%
Leave BWI more than 15 minutes late?
Calm-weather odds: 34% · changed −1 pt in 24h
−1 pt
47%
Yes 47%
No 53%
Arrive at CHS more than an hour late?
Calm-weather odds: 7% · changed −2 pts in 24h
−2 pts
12%
Yes 12%
No 88%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
How late will it get to CHS?
On time or early
55%
15–30 min late
15%
30 min–1 hour late
15%
1–2 hours late
10%
Over 2 hours late
2%
Cancelled
3%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
8pm departures from BWI are often late
↑
Cloud base down to 200 ft, visibility down to 0.5 mi forecast at BWI that day
↑
Later flights pick up delays from earlier in the day
↓
Sundays in October are usually quieter than average
↓
CHS usually runs smoothly
Weather at each end
BWI (origin)
Gusts 11 kt Ceiling 200 ft Visibility 0.8 mi Precip 0.13 in
CHS (destination)
Gusts 6 kt Ceiling 200 ft Visibility 4 mi Precip 0.94 in
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.