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 2678
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
F9 2678 · SFO → ONT
departs 9:33 AM PT · arrives 11:07 AM PT
Forecast issued Thu 3:00 PM ET · 2h after departure
Watch this flight
Other days
Today
Fri 10/2 33%
Sat 10/3 25%
Sun 10/4 22%
Mon 10/5 23%
Tue 10/6 27%
Wed 10/7 27%
Odds over time
Arrive at ONT more than 15 minutes late?
35%
chance · ±0 pts
+2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
35%
Leave 15+ late
37%
Arrive 1h+ late
11%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
1d
12h
6h
Departs
Lands
Now
Arrive at ONT more than 15 minutes late?
Calm-weather odds: 35% · changed +2 pts in 24h
+2 pts
35%
Yes 35%
No 65%
Leave SFO more than 15 minutes late?
Calm-weather odds: 37% · changed +6 pts in 24h
+6 pts
37%
Yes 37%
No 63%
Arrive at ONT more than an hour late?
Calm-weather odds: 11% · changed +0 pts in 24h
+0 pts
11%
Yes 11%
No 89%
Cancelled?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to ONT?
On time or early
64%
15–30 min late
9%
30 min–1 hour late
15%
1–2 hours late
5%
Over 2 hours late
5%
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
↑
This flight has been late 39% of the time recently
↑
SFO is prone to delays
↓
Mostly benign weather forecast at SFO
↓
Mostly benign weather forecast at ONT
Weather at each end
SFO (origin)
Gusts 11 kt Ceiling 500 ft Visibility 6 mi Precip none
ONT (destination)
Gusts 17 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.