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 3883
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 3883 · STL → ATL
departs 6:45 PM CT · arrives 9:25 PM ET
Forecast issued Fri 9:00 AM ET · 35h before departure
Watch this flight
Other days
Today 35%
Sat 10/3
Mon 10/5 17%
Odds over time
Arrive at ATL more than 15 minutes late?
18%
chance · ±3 pts
−2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
28%
Arrive 1h+ late
6%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 15% · changed −2 pts in 24h
−2 pts
18%
Yes 18%
No 82%
Leave STL more than 15 minutes late?
Calm-weather odds: 26% · changed −1 pt in 24h
−1 pt
28%
Yes 28%
No 72%
Arrive at ATL more than an hour late?
Calm-weather odds: 4% · changed −1 pt in 24h
−1 pt
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to ATL?
On time or early
81%
15–30 min late
9%
30 min–1 hour late
4%
1–2 hours late
4%
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
↑
Later flights pick up delays from earlier in the day
↑
Arrivals into ATL at that hour are often late
↑
Cloud base down to 700 ft forecast at ATL that day
↓
Mostly benign weather forecast at STL
↓
ATL usually runs smoothly
Weather at each end
STL (origin)
Gusts 10 kt Ceiling none (clear) Visibility 10+ mi Precip none
ATL (destination)
Gusts 8 kt Ceiling 900 ft Visibility 8 mi Precip 0.12 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.