Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 1634
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Today
G4 1634 · FAT → LAS
departs 3:31 PM PT · arrives 4:44 PM PT
Forecast issued Fri 4:00 PM ET · 2h before departure
Watch this flight
Other days
Today
Mon 10/5 23%
Odds over time
Arrive at LAS more than 15 minutes late?
37%
chance · ±0 pts
+12 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
Arrive 15+ late
37%
Leave 15+ late
32%
Arrive 1h+ late
12%
Cancelled
8%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
3.9d
2d
1d
12h
6h
Now
Departs
Lands
Arrive at LAS more than 15 minutes late?
Calm-weather odds: 25% · changed +12 pts in 24h
+12 pts
37%
Yes 37%
No 63%
Leave FAT more than 15 minutes late?
Calm-weather odds: 20% · changed +10 pts in 24h
+10 pts
32%
Yes 32%
No 68%
Arrive at LAS more than an hour late?
Calm-weather odds: 9% · changed −1 pt in 24h
−1 pt
12%
Yes 12%
No 88%
Cancelled?
Calm-weather odds: <1% · changed +7 pts in 24h
+7 pts
8%
Yes 8%
No 92%
How late will it get to LAS?
On time or early
58%
15–30 min late
18%
30 min–1 hour late
5%
1–2 hours late
8%
Over 2 hours late
3%
Cancelled
8%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 36% of the time recently
↑
LAS is prone to delays
↑
G4's recent on-time record
↓
Mostly benign weather forecast at LAS
↓
Mostly benign weather forecast at FAT
Weather at each end
FAT (origin)
Gusts 10 kt Ceiling none (clear) Visibility 10+ mi Precip none
LAS (destination)
Gusts 9 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.