Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4083
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30
WN 4083 · RDU → DEN
departs 5:35 AM ET · arrives 7:10 AM MT
Forecast issued Wed 10:00 PM ET · 16h after departure
Watch this flight
Other days
Wed 9/30
Mon 10/5 6%
Fri 10/9 4%
Odds over time
Arrive at DEN more than 15 minutes late?
4%
chance · ±0 pts
−6 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
4%
Leave 15+ late
2%
Arrive 1h+ late
<1%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 4% · changed −6 pts in 24h
−6 pts
4%
Yes 4%
No 96%
Leave RDU more than 15 minutes late?
Calm-weather odds: 2% · changed −1 pt in 24h
−1 pt
2%
Yes 2%
No 98%
Arrive at DEN more than an hour late?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
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
96%
15–30 min late
3%
30 min–1 hour late
<1%
1–2 hours late
<1%
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
↑
DEN is busy at that time
↑
This flight has been late 25% of the time recently
↑
Other factors
↓
Early flights usually leave on time
↓
5am departures from RDU are usually not late
Weather at each end
RDU (origin)
Gusts 6 kt Ceiling none (clear) Visibility 4 mi Precip none
DEN (destination)
Gusts 20 kt Ceiling 8,000 ft Visibility 10+ mi Precip 0.03 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.