Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 3985
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
F9 3985 · PHL → DFW
departs 8:24 PM ET · arrives 11:07 PM CT
Forecast issued Fri 4:00 AM ET · 16h before departure
Watch this flight
Other days
Today
Sat 10/3 37%
Mon 10/5 39%
Tue 10/6 24%
Wed 10/7 27%
Thu 10/8 19%
Odds over time
Arrive at DFW more than 15 minutes late?
60%
chance · ±8 pts
+5 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
60%
Leave 15+ late
47%
Arrive 1h+ late
21%
Cancelled
11%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
3.9d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at DFW more than 15 minutes late?
Calm-weather odds: 33% · changed +5 pts in 24h
+5 pts
60%
Yes 60%
No 40%
Leave PHL more than 15 minutes late?
Calm-weather odds: 30% · changed −3 pts in 24h
−3 pts
47%
Yes 47%
No 53%
Arrive at DFW more than an hour late?
Calm-weather odds: 10% · changed −1 pt in 24h
−1 pt
21%
Yes 21%
No 79%
Cancelled?
Calm-weather odds: 2% · changed +3 pts in 24h
+3 pts
11%
Yes 11%
No 89%
How late will it get to DFW?
On time or early
35%
15–30 min late
16%
30 min–1 hour late
19%
1–2 hours late
7%
Over 2 hours late
12%
Cancelled
11%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 800 ft, 0.5 in of rain forecast at DFW that day
↑
F9's recent on-time record
↑
Mostly benign weather forecast at PHL
↓
Other factors
Weather at each end
PHL (origin)
Gusts 16 kt Ceiling 4,500 ft Visibility 10+ mi Precip none
DFW (destination)
Gusts 19 kt Ceiling 900 ft Visibility 5 mi Precip 0.48 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.