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 3741
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Yesterday
WN 3741 · SLC → DEN
departs 5:00 PM MT · arrives 6:30 PM MT
Forecast issued Tue 10:00 PM ET · 3h after departure
Watch this flight
Other days
Tue 9/29
Today 71%
Thu 10/1 30%
Fri 10/2 26%
Sun 10/4 23%
Mon 10/5 21%
Tue 10/6 24%
Odds over time
Arrive at DEN more than 15 minutes late?
30%
chance · ±0 pts
−12 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
30%
Leave 15+ late
35%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 24% · changed −12 pts in 24h
−12 pts
30%
Yes 30%
No 70%
Leave SLC more than 15 minutes late?
Calm-weather odds: 31% · changed +0 pts in 24h
+0 pts
35%
Yes 35%
No 65%
Arrive at DEN more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to DEN?
On time or early
70%
15–30 min late
14%
30 min–1 hour late
9%
1–2 hours late
5%
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
↑
Arrivals into DEN at that hour are often late
↑
Later flights pick up delays from earlier in the day
↑
SLC is busy at that time
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at DEN
Weather at each end
SLC (origin)
Gusts 15 kt Ceiling 6,500 ft Visibility 10+ mi Precip none
DEN (destination)
Gusts 9 kt Ceiling 6,000 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.