Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 4135
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
F9 4135 · MIA → CLE
departs 8:32 PM ET · arrives 11:38 PM ET
Forecast issued Fri 2:00 PM ET · 54h before departure
Watch this flight
Other days
Today 35%
Sat 10/3 33%
Sun 10/4
Mon 10/5 29%
Thu 10/8 32%
Odds over time
Arrive at CLE more than 15 minutes late?
33%
chance · ±5 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
33%
Leave 15+ late
26%
Arrive 1h+ late
9%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.9d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at CLE more than 15 minutes late?
Calm-weather odds: 26% · changed – in 24h
–
33%
Yes 33%
No 67%
Leave MIA more than 15 minutes late?
Calm-weather odds: 24% · changed – in 24h
–
26%
Yes 26%
No 74%
Arrive at CLE more than an hour late?
Calm-weather odds: 9% · changed – in 24h
–
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to CLE?
On time or early
66%
15–30 min late
15%
30 min–1 hour late
9%
1–2 hours late
5%
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
↑
F9's recent on-time record
↑
Later flights pick up delays from earlier in the day
↑
8pm departures from MIA are often late
↓
MIA is quiet at that time
↓
Mostly benign weather forecast at MIA
Weather at each end
MIA (origin)
Gusts 20 kt Ceiling none (clear) Visibility 10+ mi Precip none
CLE (destination)
Gusts 9 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.