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 3993
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Tomorrow
WN 3993 · BNA → LAS
departs 9:30 AM CT · arrives 11:25 AM PT
Forecast issued Fri 12:00 AM ET · 34h before departure
Watch this flight
Other days
Today 11%
Sat 10/3
Mon 10/5 7%
Odds over time
Arrive at LAS more than 15 minutes late?
12%
chance · ±3 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
12%
Leave 15+ late
13%
Arrive 1h+ late
2%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
4.5d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 7% · changed −1 pt in 24h
−1 pt
12%
Yes 12%
No 88%
Leave BNA more than 15 minutes late?
Calm-weather odds: 8% · changed +0 pts in 24h
+0 pts
13%
Yes 13%
No 87%
Arrive at LAS more than an hour late?
Calm-weather odds: 1% · 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 LAS?
On time or early
88%
15–30 min late
7%
30 min–1 hour late
3%
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
↑
LAS is prone to delays
↑
Cloud base down to 500 ft forecast at BNA that day
↑
This flight has been late 16% of the time recently
↓
Mostly benign weather forecast at LAS
↓
WN's recent on-time record
Weather at each end
BNA (origin)
Gusts 11 kt Ceiling 500 ft Visibility 4 mi Precip 0.18 in
LAS (destination)
Gusts 11 kt Ceiling none (clear) Visibility 10+ 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.