Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 2339
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
WN 2339 · SJC → LAS
departs 3:30 PM PT · arrives 5:00 PM PT
Forecast issued Tue 8:00 PM ET · 46h before departure
Watch this flight
Other days
Thu 10/1
Fri 10/2 28%
Sat 10/3 13%
Mon 10/5 18%
Odds over time
Arrive at LAS more than 15 minutes late?
23%
chance · ±3 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
23%
Leave 15+ late
25%
Arrive 1h+ late
7%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
Now
1d
12h
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 20% · changed −1 pt in 24h
−1 pt
23%
Yes 23%
No 77%
Leave SJC more than 15 minutes late?
Calm-weather odds: 23% · changed +0 pts in 24h
+0 pts
25%
Yes 25%
No 75%
Arrive at LAS more than an hour late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
7%
Yes 7%
No 93%
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
77%
15–30 min late
7%
30 min–1 hour late
9%
1–2 hours late
6%
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
↑
Arrivals into LAS at that hour are often late
↑
LAS is prone to delays
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at LAS
↓
Cloud base down to 1,100 ft forecast at SJC that day
Weather at each end
SJC (origin)
Gusts 11 kt Ceiling 1,100 ft Visibility 7 mi Precip none
LAS (destination)
Gusts 10 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.