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 366
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 366 · ATL → DCA
departs 7:40 AM ET · arrives 9:25 AM ET
Forecast issued Fri 10:00 AM ET · 22h before departure
Watch this flight
Odds over time
Arrive at DCA more than 15 minutes late?
8%
chance · ±0 pts
−2 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
8%
Leave 15+ late
7%
Arrive 1h+ late
2%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
4.4d
2d
Now
12h
6h
Departs
Lands
Arrive at DCA more than 15 minutes late?
Calm-weather odds: 5% · changed −2 pts in 24h
−2 pts
8%
Yes 8%
No 92%
Leave ATL more than 15 minutes late?
Calm-weather odds: 7% · changed −1 pt in 24h
−1 pt
7%
Yes 7%
No 93%
Arrive at DCA more than an hour late?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
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
92%
15–30 min late
5%
30 min–1 hour late
<1%
1–2 hours late
2%
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
↑
Mostly benign weather forecast at DCA
↑
This flight has been late 23% of the time recently
↑
Other factors
↓
Early flights usually leave on time
↓
7am departures from ATL are usually not late
Weather at each end
ATL (origin)
Gusts 8 kt Ceiling 800 ft Visibility 8 mi Precip 0.12 in
DCA (destination)
Gusts 14 kt Ceiling 2,700 ft Visibility 7 mi Precip 0.03 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.