Schedule: the flights that flew on Wednesday, Oct 7, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 3990
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 14
F9 3990 · DFW → DTW
departs 3:09 PM CT · arrives 6:59 PM ET
Forecast issued Mon 10:00 PM ET · 42h before departure
Watch this flight
Other days
Today 28%
Tue 10/13 15%
Wed 10/14
Thu 10/15 31%
Sat 10/17 25%
Sun 10/18 40%
Odds over time
Arrive at DTW more than 15 minutes late?
19%
chance · ±3 pts
−3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
22%
Arrive 1h+ late
8%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.7d
Now
1d
12h
6h
Departs
Lands
Arrive at DTW more than 15 minutes late?
Calm-weather odds: 11% · changed −3 pts in 24h
−3 pts
19%
Yes 19%
No 81%
Leave DFW more than 15 minutes late?
Calm-weather odds: 17% · changed −4 pts in 24h
−4 pts
22%
Yes 22%
No 78%
Arrive at DTW more than an hour late?
Calm-weather odds: 5% · changed −1 pt in 24h
−1 pt
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to DTW?
On time or early
80%
15–30 min late
7%
30 min–1 hour late
4%
1–2 hours late
4%
Over 2 hours late
4%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
3pm departures from DFW are often late
↑
This flight has been late 23% of the time recently
↑
Later flights pick up delays from earlier in the day
↓
Wednesdays in October are usually quieter than average
↓
DTW usually runs smoothly
Weather at each end
DFW (origin)
Gusts 23 kt Ceiling 900 ft Visibility 10+ mi Precip none
DTW (destination)
Gusts 11 kt Ceiling 400 ft Visibility 7 mi Precip 0.08 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.