Schedule: the flights that flew on Wednesday, Sep 30, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
SOUTHWEST · FLIGHT WN 4335
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 7
WN 4335 · PHL → DEN
departs 5:09 PM ET · arrives 7:01 PM MT
Forecast issued Mon 6:00 AM ET · 59h before departure
Watch this flight
Other days
Tue 10/6 16%
Wed 10/7
Odds over time
Arrive at DEN more than 15 minutes late?
19%
chance · ±4 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
17%
Arrive 1h+ late
3%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.0d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at DEN more than 15 minutes late?
Calm-weather odds: 16% · changed – in 24h
–
19%
Yes 19%
No 81%
Leave PHL more than 15 minutes late?
Calm-weather odds: 15% · changed – in 24h
–
17%
Yes 17%
No 83%
Arrive at DEN more than an hour late?
Calm-weather odds: 2% · changed – in 24h
–
3%
Yes 3%
No 97%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to DEN?
On time or early
81%
15–30 min late
12%
30 min–1 hour late
4%
1–2 hours late
2%
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
↑
5pm departures from PHL are often late
↑
This flight has been late 29% of the time recently
↓
Wednesdays in October are usually quieter than average
↓
Mostly benign weather forecast at PHL
Weather at each end
PHL (origin)
Gusts 17 kt Ceiling none (clear) Visibility 10+ mi Precip none
DEN (destination)
Gusts 16 kt Ceiling none (clear) 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.