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 4345
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
F9 4345 · DEN → LAX
departs 10:39 PM MT · arrives 12:11 AM PT
Forecast issued Wed 2:00 PM ET · 35h before departure
Watch this flight
Other days
Today 21%
Thu 10/1
Fri 10/2 28%
Sat 10/3 26%
Sun 10/4 30%
Mon 10/5 26%
Tue 10/6 16%
Odds over time
Arrive at LAX more than 15 minutes late?
30%
chance · ±5 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
35%
Arrive 1h+ late
12%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at LAX more than 15 minutes late?
Calm-weather odds: 24% · changed +0 pts in 24h
+0 pts
30%
Yes 30%
No 70%
Leave DEN more than 15 minutes late?
Calm-weather odds: 28% · changed +5 pts in 24h
+5 pts
35%
Yes 35%
No 65%
Arrive at LAX more than an hour late?
Calm-weather odds: 9% · changed +2 pts in 24h
+2 pts
12%
Yes 12%
No 88%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to LAX?
On time or early
70%
15–30 min late
11%
30 min–1 hour late
7%
1–2 hours late
9%
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
↑
Later flights pick up delays from earlier in the day
↑
Arrivals into LAX at that hour are often late
↓
Cloud base down to 700 ft forecast at LAX that day
↓
DEN usually runs smoothly
Weather at each end
DEN (origin)
Gusts 21 kt Ceiling 7,000 ft Visibility 10+ mi Precip none
LAX (destination)
Gusts 14 kt Ceiling 700 ft Visibility 5 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.