Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
FRONTIER · FLIGHT F9 1850
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
F9 1850 · SFO → LAS
departs 4:30 PM PT · arrives 6:23 PM PT
Forecast issued Wed 11:00 AM ET · 8h before departure
Watch this flight
Other days
Today
Thu 10/1 39%
Fri 10/2 35%
Sat 10/3 24%
Sun 10/4 33%
Mon 10/5 31%
Tue 10/6 20%
Odds over time
Arrive at LAS more than 15 minutes late?
38%
chance · ±0 pts
+3 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
38%
Leave 15+ late
41%
Arrive 1h+ late
11%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
1d
12h
Now
6h
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 28% · changed +3 pts in 24h
+3 pts
38%
Yes 38%
No 62%
Leave SFO more than 15 minutes late?
Calm-weather odds: 28% · changed +5 pts in 24h
+5 pts
41%
Yes 41%
No 59%
Arrive at LAS more than an hour late?
Calm-weather odds: 9% · changed +1 pt in 24h
+1 pt
11%
Yes 11%
No 89%
Cancelled?
Calm-weather odds: 1% · changed −1 pt in 24h
−1 pt
<1%
Yes <1%
No 99%
How late will it get to LAS?
On time or early
62%
15–30 min late
15%
30 min–1 hour late
12%
1–2 hours late
7%
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
↑
This flight has been late 28% of the time recently
↑
4pm departures from SFO are often late
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at LAS
Weather at each end
SFO (origin)
Gusts 13 kt Ceiling none (clear) Visibility 10+ mi Precip none
LAS (destination)
Gusts 12 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.