Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4112
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Yesterday
WN 4112 · ANC → LAS
departs 11:55 PM AKT · arrives 6:00 AM PT
Forecast issued Tue 10:00 PM ET · 6h before departure
Watch this flight
Other days
Tue 9/29
Today 20%
Thu 10/1 19%
Sat 10/3 16%
Sun 10/4 14%
Mon 10/5 18%
Tue 10/6 14%
Odds over time
Arrive at LAS more than 15 minutes late?
27%
chance · ±9 pts
+5 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
27%
Leave 15+ late
28%
Arrive 1h+ late
4%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.7d
2d
1d
12h
Now
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 25% · changed +5 pts in 24h
+5 pts
27%
Yes 27%
No 73%
Leave ANC more than 15 minutes late?
Calm-weather odds: 27% · changed +4 pts in 24h
+4 pts
28%
Yes 28%
No 72%
Arrive at LAS more than an hour late?
Calm-weather odds: 4% · changed +1 pt in 24h
+1 pt
4%
Yes 4%
No 96%
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
72%
15–30 min late
18%
30 min–1 hour late
5%
1–2 hours late
3%
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
↑
This flight has been late 30% of the time recently
↑
Later flights pick up delays from earlier in the day
↓
Tuesdays in September are usually quieter than average
↓
Arrivals into LAS at that hour are usually not late
Weather at each end
ANC (origin)
Gusts 17 kt Ceiling 6,000 ft Visibility 10+ mi Precip 0.05 in
LAS (destination)
Gusts 27 kt Ceiling 4,700 ft Visibility 7 mi Precip 0.08 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.