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 4313
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 4313 · DEN → TUS
departs 8:50 PM MT · arrives 9:55 PM MT
Forecast issued Wed 6:00 PM ET · 5h before departure
Watch this flight
Other days
Today
Thu 10/1 28%
Fri 10/2 39%
Sat 10/3 35%
Sun 10/4 31%
Mon 10/5 32%
Tue 10/6 28%
Odds over time
Arrive at TUS more than 15 minutes late?
49%
chance · ±0 pts
−19 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
49%
Leave 15+ late
61%
Arrive 1h+ late
14%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
2.9d
2d
1d
12h
Now
Departs
Lands
Arrive at TUS more than 15 minutes late?
Calm-weather odds: 44% · changed −19 pts in 24h
−19 pts
49%
Yes 49%
No 51%
Leave DEN more than 15 minutes late?
Calm-weather odds: 52% · changed −1 pt in 24h
−1 pt
61%
Yes 61%
No 39%
Arrive at TUS more than an hour late?
Calm-weather odds: 15% · changed −12 pts in 24h
−12 pts
14%
Yes 14%
No 86%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
<1%
Yes <1%
No 100%
How late will it get to TUS?
On time or early
51%
15–30 min late
25%
30 min–1 hour late
10%
1–2 hours late
12%
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
↑
8pm departures from DEN are often late
↑
Later flights pick up delays from earlier in the day
↑
TUS is prone to delays
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at TUS
Weather at each end
DEN (origin)
Gusts 20 kt Ceiling 8,000 ft Visibility 10+ mi Precip 0.04 in
TUS (destination)
Gusts 9 kt Ceiling 6,500 ft Visibility 6 mi Precip 0.04 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.