Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3719
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Today
WN 3719 · SJU → BWI
departs 3:45 PM AT · arrives 8:00 PM ET
Forecast issued Tue 6:00 PM ET · 2h after departure
Watch this flight
Other days
Today
Wed 9/30 23%
Thu 10/1 21%
Fri 10/2 26%
Sat 10/3 22%
Mon 10/5 19%
Odds over time
Arrive at BWI more than 15 minutes late?
20%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
20%
Leave 15+ late
23%
Arrive 1h+ late
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Departs
Now
Lands
Arrive at BWI more than 15 minutes late?
Calm-weather odds: 22% · changed +1 pt in 24h
+1 pt
20%
Yes 20%
No 80%
Leave SJU more than 15 minutes late?
Calm-weather odds: 24% · changed +1 pt in 24h
+1 pt
23%
Yes 23%
No 77%
Arrive at BWI more than an hour late?
Calm-weather odds: 4% · changed +1 pt in 24h
+1 pt
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to BWI?
On time or early
79%
15–30 min late
12%
30 min–1 hour late
4%
1–2 hours late
4%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Arrivals into BWI at that hour are often late
↑
Later flights pick up delays from earlier in the day
↑
3pm departures from SJU are often late
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at BWI
Weather at each end
SJU (origin)
Gusts 25 kt Ceiling 2,500 ft Visibility 10+ mi Precip none
BWI (destination)
Gusts 7 kt Ceiling 3,600 ft Visibility 10+ mi Precip none
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.