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 3310
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Today
WN 3310 · LAS → SLC
departs 1:55 PM PT · arrives 4:20 PM MT
Forecast issued Tue 4:00 PM ET · 1h before departure
Watch this flight
Other days
Today
Wed 9/30 33%
Thu 10/1 25%
Fri 10/2 27%
Sun 10/4 28%
Mon 10/5 26%
Odds over time
Arrive at SLC more than 15 minutes late?
44%
chance · ±1 pts
+10 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
44%
Leave 15+ late
43%
Arrive 1h+ late
9%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 46% · changed +10 pts in 24h
+10 pts
44%
Yes 44%
No 56%
Leave LAS more than 15 minutes late?
Calm-weather odds: 45% · changed −3 pts in 24h
−3 pts
43%
Yes 43%
No 57%
Arrive at SLC more than an hour late?
Calm-weather odds: 9% · changed +2 pts in 24h
+2 pts
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SLC?
On time or early
55%
15–30 min late
18%
30 min–1 hour late
17%
1–2 hours late
8%
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
↑
1pm departures from LAS are often late
↑
LAS is prone to delays
↑
Mostly benign weather forecast at LAS
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at SLC
Weather at each end
LAS (origin)
Gusts 23 kt Ceiling 4,700 ft Visibility 7 mi Precip 0.07 in
SLC (destination)
Gusts 16 kt Ceiling 6,500 ft 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.