Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
FRONTIER · FLIGHT F9 4405
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Yesterday
F9 4405 · MIA → ATL
departs 5:28 PM ET · arrives 8:00 PM ET
Forecast issued Wed 10:00 PM ET · 4h after departure
Watch this flight
Other days
Wed 9/30
Today 52%
Fri 10/2 46%
Sat 10/3 45%
Sun 10/4 35%
Mon 10/5 35%
Tue 10/6 29%
Wed 10/7 32%
Odds over time
Arrive at ATL more than 15 minutes late?
35%
chance · ±1 pts
−9 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
35%
Leave 15+ late
32%
Arrive 1h+ late
14%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at ATL more than 15 minutes late?
Calm-weather odds: 33% · changed −9 pts in 24h
−9 pts
35%
Yes 35%
No 65%
Leave MIA more than 15 minutes late?
Calm-weather odds: 32% · changed −10 pts in 24h
−10 pts
32%
Yes 32%
No 68%
Arrive at ATL more than an hour late?
Calm-weather odds: 14% · changed −7 pts in 24h
−7 pts
14%
Yes 14%
No 86%
Cancelled?
Calm-weather odds: 1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to ATL?
On time or early
64%
15–30 min late
8%
30 min–1 hour late
12%
1–2 hours late
9%
Over 2 hours late
5%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
F9's recent on-time record
↑
5pm departures from MIA are often late
↑
Mostly benign weather forecast at MIA
↓
Wednesdays in September are usually quieter than average
↓
Cloud base down to 200 ft, visibility down to 0.5 mi forecast at ATL that day
Weather at each end
MIA (origin)
Gusts 18 kt Ceiling 2,800 ft Visibility 6 mi Precip 0.16 in
ATL (destination)
Gusts 9 kt Ceiling 200 ft Visibility 0.5 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.