Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3662
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 3662 · DAL → DCA
departs 8:35 AM CT · arrives 12:30 PM ET
Forecast issued Fri 7:00 AM ET · 27h before departure
Watch this flight
Odds over time
Arrive at DCA more than 15 minutes late?
19%
chance · ±4 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
21%
Arrive 1h+ late
6%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.5d
2d
Now
12h
6h
Departs
Lands
Arrive at DCA more than 15 minutes late?
Calm-weather odds: 10% · changed +0 pts in 24h
+0 pts
19%
Yes 19%
No 81%
Leave DAL more than 15 minutes late?
Calm-weather odds: 10% · changed +4 pts in 24h
+4 pts
21%
Yes 21%
No 79%
Arrive at DCA more than an hour late?
Calm-weather odds: 2% · changed +1 pt in 24h
+1 pt
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +1 pt in 24h
+1 pt
2%
Yes 2%
No 98%
How late will it get to DCA?
On time or early
79%
15–30 min late
5%
30 min–1 hour late
8%
1–2 hours late
3%
Over 2 hours late
2%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 400 ft, 0.8 in of rain forecast at DAL that day
↑
DAL is prone to delays
↑
This flight has been late 17% of the time recently
↓
8am departures from DAL are usually not late
↓
Early flights usually leave on time
Weather at each end
DAL (origin)
Gusts 13 kt Ceiling 400 ft Visibility 3 mi Precip 0.84 in
DCA (destination)
Gusts 15 kt Ceiling 2,200 ft Visibility 8 mi Precip 0.05 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.