Schedule: the flights that flew on Tuesday, Oct 20, 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
Tuesday, October 27 Tomorrow
F9 1283 · LAS → ONT
departs 9:18 AM PT · arrives 10:37 AM PT
Forecast issued Tue 1:00 AM ET · 11h before departure
Watch this flight
Other days
Today
Wed 10/28 8%
Thu 10/29 20%
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?
21%
chance · ±0 pts
+12 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
21%
Leave 15+ late
18%
Arrive 1h+ late
9%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.5d
2d
1d
Now
6h
Departs
Lands
Arrive at ONT more than 15 minutes late?
Calm-weather odds: 8% · changed +12 pts in 24h
+12 pts
21%
Yes 21%
No 79%
Leave LAS more than 15 minutes late?
Calm-weather odds: 11% · changed +8 pts in 24h
+8 pts
18%
Yes 18%
No 82%
Arrive at ONT more than an hour late?
Calm-weather odds: 4% · changed +6 pts in 24h
+6 pts
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to ONT?
On time or early
78%
15–30 min late
14%
30 min–1 hour late
0%
1–2 hours late
5%
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
↓
Mostly benign weather forecast at LAS
↓
Mostly benign weather forecast at ONT
Weather at each end
LAS (origin)
Gusts 17 kt Ceiling none (clear) Visibility 10+ mi Precip none
ONT (destination)
Gusts 14 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.