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 380
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2 Yesterday
G4 380 · IAD → JAX
departs 6:46 PM ET · arrives 8:50 PM ET
Forecast issued Fri 10:00 PM ET · 3h after departure
Watch this flight
Other days
Fri 10/2
Fri 10/9 32%
Odds over time
Arrive at JAX more than 15 minutes late?
47%
chance · ±0 pts
+10 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
47%
Leave 15+ late
39%
Arrive 1h+ late
25%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
3.9d
2d
1d
12h
6h
Departs
Lands
Now
Arrive at JAX more than 15 minutes late?
Calm-weather odds: 47% · changed +10 pts in 24h
+10 pts
47%
Yes 47%
No 53%
Leave IAD more than 15 minutes late?
Calm-weather odds: 39% · changed +0 pts in 24h
+0 pts
39%
Yes 39%
No 61%
Arrive at JAX more than an hour late?
Calm-weather odds: 25% · changed +5 pts in 24h
+5 pts
25%
Yes 25%
No 75%
Cancelled?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to JAX?
On time or early
52%
15–30 min late
9%
30 min–1 hour late
13%
1–2 hours late
11%
Over 2 hours late
13%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Visibility down to 0.75 mi, 2.2 in of rain, thunderstorms forecast at JAX that day
↑
Later flights pick up delays from earlier in the day
↑
G4's recent on-time record
↓
Fridays in October are usually quieter than average
↓
JAX usually runs smoothly
Weather at each end
IAD (origin)
Gusts 22 kt Ceiling 2,600 ft Visibility 1.75 mi Precip 0.27 in
JAX (destination)
Gusts 22 kt Ceiling 200 ft Visibility 0.5 mi Precip 1.86 in
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.