Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
FRONTIER · FLIGHT F9 4552
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
F9 4552 · LAS → MIA
departs 10:29 PM PT · arrives 6:30 AM ET
Forecast issued Wed 2:00 AM ET · 48h before departure
Watch this flight
Other days
Today 25%
Thu 10/1
Sat 10/3 18%
Sun 10/4 28%
Mon 10/5 27%
Tue 10/6 14%
Odds over time
Arrive at MIA more than 15 minutes late?
28%
chance · ±2 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
28%
Leave 15+ late
35%
Arrive 1h+ late
13%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.7d
Now
1d
12h
6h
Departs
Lands
Arrive at MIA more than 15 minutes late?
Calm-weather odds: 28% · changed – in 24h
–
28%
Yes 28%
No 72%
Leave LAS more than 15 minutes late?
Calm-weather odds: 25% · changed – in 24h
–
35%
Yes 35%
No 65%
Arrive at MIA more than an hour late?
Calm-weather odds: 11% · changed – in 24h
–
13%
Yes 13%
No 87%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
2%
Yes 2%
No 98%
How late will it get to MIA?
On time or early
71%
15–30 min late
11%
30 min–1 hour late
4%
1–2 hours late
9%
Over 2 hours late
4%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
F9's recent on-time record
↑
10pm departures from LAS are often late
↑
Gusts to 27 kt, 0.6 in of rain, thunderstorms forecast at MIA that day
↓
Mostly benign weather forecast at LAS
↓
Thursdays in October are usually quieter than average
Weather at each end
LAS (origin)
Gusts 9 kt Ceiling none (clear) Visibility 10+ mi Precip none
MIA (destination)
Gusts 27 kt Ceiling 2,800 ft Visibility 5 mi Precip 0.63 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.