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 2275
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
F9 2275 · ONT → SEA
departs 4:49 PM PT · arrives 7:38 PM PT
Forecast issued Thu 11:00 PM ET · 69h before departure
Watch this flight
Other days
Today 20%
Sat 10/3 16%
Sun 10/4
Mon 10/5 20%
Tue 10/6 15%
Wed 10/7 13%
Odds over time
Arrive at SEA more than 15 minutes late?
19%
chance · ±1 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
19%
Leave 15+ late
26%
Arrive 1h+ late
6%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
5.9d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SEA more than 15 minutes late?
Calm-weather odds: 16% · changed – in 24h
–
19%
Yes 19%
No 81%
Leave ONT more than 15 minutes late?
Calm-weather odds: 23% · changed – in 24h
–
26%
Yes 26%
No 74%
Arrive at SEA more than an hour late?
Calm-weather odds: 5% · 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 SEA?
On time or early
80%
15–30 min late
1%
30 min–1 hour late
11%
1–2 hours late
<1%
Over 2 hours late
6%
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
↑
Arrivals into SEA at that hour are often late
↓
Cloud base down to 200 ft forecast at SEA that day
↓
ONT usually runs smoothly
Weather at each end
ONT (origin)
Gusts 17 kt Ceiling none (clear) Visibility 10+ mi Precip none
SEA (destination)
Gusts 8 kt Ceiling 200 ft 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.