Schedule: a typical summer Saturday (the flights of Jul 25, 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
Saturday, October 3 Today
F9 2457 · LAX → SJC
departs 6:11 PM PT · arrives 7:28 PM PT
Forecast issued Sat 6:00 PM ET · 3h before departure
Watch this flight
Other days
Today
Sun 10/4 42%
Mon 10/5 27%
Fri 10/9 31%
Odds over time
Arrive at SJC more than 15 minutes late?
36%
chance · ±0 pts
+7 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
36%
Leave 15+ late
43%
Arrive 1h+ late
11%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
5.0d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at SJC more than 15 minutes late?
Calm-weather odds: 25% · changed +7 pts in 24h
+7 pts
36%
Yes 36%
No 64%
Leave LAX more than 15 minutes late?
Calm-weather odds: 30% · changed +9 pts in 24h
+9 pts
43%
Yes 43%
No 57%
Arrive at SJC more than an hour late?
Calm-weather odds: 11% · changed +0 pts in 24h
+0 pts
11%
Yes 11%
No 89%
Cancelled?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to SJC?
On time or early
63%
15–30 min late
19%
30 min–1 hour late
6%
1–2 hours late
8%
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
↑
6pm departures from LAX are often late
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at SJC
↓
Mostly benign weather forecast at LAX
Weather at each end
LAX (origin)
Gusts 11 kt Ceiling none (clear) Visibility 10+ mi Precip none
SJC (destination)
Gusts 7 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.