Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 3351
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
WN 3351 · DAL → DCA
departs 6:10 AM CT · arrives 10:00 AM ET
Forecast issued Tue 11:00 PM ET · 32h before departure
Watch this flight
Other days
Today 6%
Thu 10/1
Fri 10/2 8%
Sat 10/3 7%
Mon 10/5 8%
Tue 10/6 6%
Odds over time
Arrive at DCA more than 15 minutes late?
15%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
15%
Leave 15+ late
8%
Arrive 1h+ late
3%
Cancelled
6%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at DCA more than 15 minutes late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
15%
Yes 15%
No 85%
Leave DAL more than 15 minutes late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
8%
Yes 8%
No 92%
Arrive at DCA more than an hour late?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed −4 pts in 24h
−4 pts
6%
Yes 6%
No 94%
How late will it get to DCA?
On time or early
79%
15–30 min late
10%
30 min–1 hour late
1%
1–2 hours late
2%
Over 2 hours late
1%
Cancelled
6%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 500 ft, 1.7 in of rain forecast at DAL that day
↑
DAL is prone to delays
↑
Other factors
↓
Early flights usually leave on time
↓
6am departures from DAL are usually not late
Weather at each end
DAL (origin)
Gusts 21 kt Ceiling 500 ft Visibility 3 mi Precip 1.73 in
DCA (destination)
Gusts 9 kt Ceiling none (clear) Visibility 9 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.