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 4500
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4
F9 4500 · PDX → LAX
departs 5:36 PM PT · arrives 8:04 PM PT
Forecast issued Fri 12:00 PM ET · 57h before departure
Watch this flight
Other days
Today 37%
Sat 10/3 22%
Sun 10/4
Mon 10/5 24%
Thu 10/8 13%
Odds over time
Arrive at LAX more than 15 minutes late?
30%
chance · ±7 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
33%
Arrive 1h+ late
10%
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 LAX more than 15 minutes late?
Calm-weather odds: 26% · changed – in 24h
–
30%
Yes 30%
No 70%
Leave PDX more than 15 minutes late?
Calm-weather odds: 31% · changed – in 24h
–
33%
Yes 33%
No 67%
Arrive at LAX more than an hour late?
Calm-weather odds: 9% · changed – in 24h
–
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
1%
Yes 1%
No 99%
How late will it get to LAX?
On time or early
69%
15–30 min late
11%
30 min–1 hour late
8%
1–2 hours late
5%
Over 2 hours late
5%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Later flights pick up delays from earlier in the day
↑
F9's recent on-time record
↑
Arrivals into LAX at that hour are often late
↓
Mostly benign weather forecast at LAX
↓
Cloud base down to 200 ft forecast at PDX that day
Weather at each end
PDX (origin)
Gusts 6 kt Ceiling 200 ft Visibility 9 mi Precip none
LAX (destination)
Gusts 13 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.