Schedule: the flights that flew on Thursday, Oct 22, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 1283
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 29
F9 1283 · LAS → ONT
departs 10:01 AM PT · arrives 11:21 AM PT
Forecast issued Tue 2:00 AM ET · 59h before departure
Watch this flight
Other days
Today 17%
Wed 10/28 8%
Thu 10/29
Fri 10/30 18%
Sat 10/31 9%
Sun 11/1 19%
Mon 11/2 20%
Odds over time
Arrive at ONT more than 15 minutes late?
18%
chance · ±2 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
14%
Arrive 1h+ late
6%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.5d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at ONT more than 15 minutes late?
Calm-weather odds: 17% · changed – in 24h
–
18%
Yes 18%
No 82%
Leave LAS more than 15 minutes late?
Calm-weather odds: 13% · changed – in 24h
–
14%
Yes 14%
No 86%
Arrive at ONT more than an hour late?
Calm-weather odds: 6% · changed – in 24h
–
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to ONT?
On time or early
82%
15–30 min late
6%
30 min–1 hour late
5%
1–2 hours late
4%
Over 2 hours late
2%
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
↑
LAS is prone to delays
↑
10am departures from LAS are often late
↓
Mostly benign weather forecast at LAS
↓
Early flights usually leave on time
Weather at each end
LAS (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
ONT (destination)
Gusts 16 kt Ceiling 4,700 ft Visibility 4 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.