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 823
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
WN 823 · DAL → DCA
departs 6:15 AM CT · arrives 10:05 AM ET
Forecast issued Fri 10:00 AM ET · 45h before departure
Watch this flight
Odds over time
Arrive at DCA more than 15 minutes late?
9%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
9%
Leave 15+ late
6%
Arrive 1h+ late
2%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
5.4d
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
9%
Yes 9%
No 91%
Leave DAL more than 15 minutes late?
Calm-weather odds: 4% · changed +1 pt in 24h
+1 pt
6%
Yes 6%
No 94%
Arrive at DCA more than an hour late?
Calm-weather odds: <1% · changed +1 pt in 24h
+1 pt
2%
Yes 2%
No 98%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to DCA?
On time or early
90%
15–30 min late
5%
30 min–1 hour late
2%
1–2 hours late
1%
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
↑
Cloud base down to 500 ft, 0.3 in of rain forecast at DCA that day
↑
DAL is prone to delays
↑
This flight has been late 13% of the time recently
↓
Early flights usually leave on time
↓
6am departures from DAL are usually not late
Weather at each end
DAL (origin)
Gusts 18 kt Ceiling 600 ft Visibility 10+ mi Precip 0.07 in
DCA (destination)
Gusts 9 kt Ceiling 500 ft Visibility 0.8 mi Precip 0.52 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.