Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 2400
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 2400 · STL → ATL
departs 7:10 PM CT · arrives 9:50 PM ET
Forecast issued Wed 12:00 PM ET · 8h before departure
Watch this flight
Other days
Today
Tue 10/6 19%
Odds over time
Arrive at ATL more than 15 minutes late?
21%
chance · ±0 pts
+7 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
21%
Leave 15+ late
25%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
Now
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 16% · changed +7 pts in 24h
+7 pts
21%
Yes 21%
No 79%
Leave STL more than 15 minutes late?
Calm-weather odds: 31% · changed −2 pts in 24h
−2 pts
25%
Yes 25%
No 75%
Arrive at ATL more than an hour late?
Calm-weather odds: 4% · changed +1 pt in 24h
+1 pt
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 100%
How late will it get to ATL?
On time or early
79%
15–30 min late
11%
30 min–1 hour late
7%
1–2 hours late
2%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Later flights pick up delays from earlier in the day
↑
7pm departures from STL are often late
↑
Arrivals into ATL at that hour are often late
↓
Wednesdays in September are usually quieter than average
↓
ATL usually runs smoothly
Weather at each end
STL (origin)
Gusts 14 kt Ceiling 9,000 ft Visibility 10+ mi Precip none
ATL (destination)
Gusts 10 kt Ceiling 200 ft Visibility 0.5 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.