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 3997
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 3997 · TPA → ATL
departs 7:20 PM ET · arrives 9:00 PM ET
Forecast issued Fri 10:00 AM ET · 33h before departure
Watch this flight
Other days
Today 58%
Sat 10/3
Mon 10/5 22%
Tue 10/6 19%
Wed 10/7 18%
Odds over time
Arrive at ATL more than 15 minutes late?
46%
chance · ±3 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
46%
Leave 15+ late
38%
Arrive 1h+ late
13%
Cancelled
2%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
4.9d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 19% · changed +0 pts in 24h
+0 pts
46%
Yes 46%
No 54%
Leave TPA more than 15 minutes late?
Calm-weather odds: 22% · changed +0 pts in 24h
+0 pts
38%
Yes 38%
No 62%
Arrive at ATL more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
13%
Yes 13%
No 87%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to ATL?
On time or early
53%
15–30 min late
26%
30 min–1 hour late
6%
1–2 hours late
10%
Over 2 hours late
3%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
0.3 in of rain forecast at TPA that day
↑
Later flights pick up delays from earlier in the day
↑
Cloud base down to 700 ft forecast at ATL that day
↓
ATL usually runs smoothly
↓
Saturdays in October are usually quieter than average
Weather at each end
TPA (origin)
Gusts 14 kt Ceiling 7,000 ft Visibility 10+ mi Precip 0.22 in
ATL (destination)
Gusts 8 kt Ceiling 800 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.