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 4204
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 4204 · MSY → LAS
departs 6:45 AM CT · arrives 8:20 AM PT
Forecast issued Wed 10:00 PM ET · 14h after departure
Watch this flight
Other days
Today
Tue 10/6 7%
Odds over time
Arrive at LAS more than 15 minutes late?
6%
chance · ±0 pts
−3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
6%
Leave 15+ late
4%
Arrive 1h+ late
<1%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.7d
2d
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 6% · changed −3 pts in 24h
−3 pts
6%
Yes 6%
No 94%
Leave MSY more than 15 minutes late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
Arrive at LAS more than an hour late?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
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
93%
15–30 min late
3%
30 min–1 hour late
2%
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
↑
Other factors
↑
MSY is prone to delays
↓
Early flights usually leave on time
↓
Mostly benign weather forecast at LAS
Weather at each end
MSY (origin)
Gusts 20 kt Ceiling none (clear) Visibility 10+ mi Precip none
LAS (destination)
Gusts 18 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.