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 2457
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4 Tomorrow
F9 2457 · LAX → SJC
departs 6:11 PM PT · arrives 7:28 PM PT
Forecast issued Sat 6:00 PM ET · 27h before departure
Watch this flight
Other days
Today 36%
Sun 10/4
Mon 10/5 27%
Fri 10/9 31%
Odds over time
Arrive at SJC more than 15 minutes late?
42%
chance · ±3 pts
+5 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
42%
Leave 15+ late
42%
Arrive 1h+ late
18%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.0d
2d
Now
12h
6h
Departs
Lands
Arrive at SJC more than 15 minutes late?
Calm-weather odds: 35% · changed +5 pts in 24h
+5 pts
42%
Yes 42%
No 58%
Leave LAX more than 15 minutes late?
Calm-weather odds: 37% · changed +4 pts in 24h
+4 pts
42%
Yes 42%
No 58%
Arrive at SJC more than an hour late?
Calm-weather odds: 14% · changed +2 pts in 24h
+2 pts
18%
Yes 18%
No 82%
Cancelled?
Calm-weather odds: 1% · changed −1 pt in 24h
−1 pt
1%
Yes 1%
No 99%
How late will it get to SJC?
On time or early
57%
15–30 min late
15%
30 min–1 hour late
9%
1–2 hours late
14%
Over 2 hours late
4%
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
↑
6pm departures from LAX are often late
↓
Mostly benign weather forecast at LAX
↓
Mostly benign weather forecast at SJC
Weather at each end
LAX (origin)
Gusts 13 kt Ceiling none (clear) Visibility 10+ mi Precip none
SJC (destination)
Gusts 14 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.