Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
FRONTIER · FLIGHT F9 2457
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
F9 2457 · LAX → SJC
departs 6:11 PM PT · arrives 7:28 PM PT
Forecast issued Thu 10:00 PM ET · 1h after departure
Watch this flight
Other days
Thu 10/1
Today 40%
Mon 10/5 30%
Fri 10/9 31%
Odds over time
Arrive at SJC more than 15 minutes late?
27%
chance · ±0 pts
−3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
27%
Leave 15+ late
35%
Arrive 1h+ late
12%
Cancelled
3%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at SJC more than 15 minutes late?
Calm-weather odds: 27% · changed −3 pts in 24h
−3 pts
27%
Yes 27%
No 73%
Leave LAX more than 15 minutes late?
Calm-weather odds: 35% · changed −3 pts in 24h
−3 pts
35%
Yes 35%
No 65%
Arrive at SJC more than an hour late?
Calm-weather odds: 12% · changed −2 pts in 24h
−2 pts
12%
Yes 12%
No 88%
Cancelled?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
3%
Yes 3%
No 97%
How late will it get to SJC?
On time or early
71%
15–30 min late
5%
30 min–1 hour late
10%
1–2 hours late
8%
Over 2 hours late
4%
Cancelled
3%
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
↑
6pm departures from LAX are often late
↓
Cloud base down to 1,000 ft forecast at LAX that day
↓
Cloud base down to 700 ft forecast at SJC that day
Weather at each end
LAX (origin)
Gusts 13 kt Ceiling 1,000 ft Visibility 6 mi Precip none
SJC (destination)
Gusts 10 kt Ceiling 700 ft Visibility 6 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.