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 3220
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30
WN 3220 · PHL → DEN
departs 2:20 PM ET · arrives 4:20 PM MT
Forecast issued Wed 10:00 PM ET · 8h after departure
Watch this flight
Other days
Wed 9/30
Today 39%
Mon 10/5 21%
Tue 10/6 22%
Wed 10/7 19%
Odds over time
Arrive at DEN more than 15 minutes late?
50%
chance · ±0 pts
−14 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
50%
Leave 15+ late
39%
Arrive 1h+ late
7%
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: 50% · changed −14 pts in 24h
−14 pts
50%
Yes 50%
No 50%
Leave PHL more than 15 minutes late?
Calm-weather odds: 39% · changed −3 pts in 24h
−3 pts
39%
Yes 39%
No 61%
Arrive at DEN more than an hour late?
Calm-weather odds: 7% · changed −3 pts in 24h
−3 pts
7%
Yes 7%
No 93%
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
50%
15–30 min late
28%
30 min–1 hour late
14%
1–2 hours late
5%
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
↑
Arrivals into DEN at that hour are often late
↑
Mostly benign weather forecast at DEN
↑
This flight has been late 32% of the time recently
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at PHL
Weather at each end
PHL (origin)
Gusts 8 kt Ceiling 4,500 ft Visibility 10+ 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.