Schedule: the flights that flew on Friday, Oct 23, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 4689
SCHEDULED · TYPICAL SCHEDULE
Friday, October 30 Tomorrow
F9 4689 · DFW → ONT
departs 5:55 PM CT · arrives 7:16 PM PT
Forecast issued Thu 4:00 AM ET · 39h before departure
Watch this flight
Other days
Today 41%
Fri 10/30
Sat 10/31 44%
Sun 11/1 38%
Tue 11/3 30%
Wed 11/4 42%
Odds over time
Arrive at ONT more than 15 minutes late?
41%
chance · ±7 pts
+6 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
41%
Leave 15+ late
38%
Arrive 1h+ late
15%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at ONT more than 15 minutes late?
Calm-weather odds: 28% · changed +6 pts in 24h
+6 pts
41%
Yes 41%
No 59%
Leave DFW more than 15 minutes late?
Calm-weather odds: 30% · changed +6 pts in 24h
+6 pts
38%
Yes 38%
No 62%
Arrive at ONT more than an hour late?
Calm-weather odds: 8% · changed +6 pts in 24h
+6 pts
15%
Yes 15%
No 85%
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
58%
15–30 min late
12%
30 min–1 hour late
14%
1–2 hours late
11%
Over 2 hours late
3%
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
↑
5pm departures from DFW are often late
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at DFW
↓
Mostly benign weather forecast at ONT
Weather at each end
DFW (origin)
Gusts 11 kt Ceiling 3,533 ft Visibility 7 mi Precip 0.01 in
ONT (destination)
Gusts 14 kt Ceiling 3,500 ft Visibility 5 mi Precip 0.01 in
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.