Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 1399
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
G4 1399 · TYS → FLL
departs 9:11 PM ET · arrives 11:13 PM ET
Forecast issued Thu 10:00 PM ET · 1h after departure
Watch this flight
Other days
Thu 10/1
Sun 10/4 14%
Odds over time
Arrive at FLL more than 15 minutes late?
58%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
58%
Leave 15+ late
54%
Arrive 1h+ late
20%
Cancelled
6%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at FLL more than 15 minutes late?
Calm-weather odds: 63% · changed +1 pt in 24h
+1 pt
58%
Yes 58%
No 42%
Leave TYS more than 15 minutes late?
Calm-weather odds: 55% · changed +0 pts in 24h
+0 pts
54%
Yes 54%
No 46%
Arrive at FLL more than an hour late?
Calm-weather odds: 21% · changed +0 pts in 24h
+0 pts
20%
Yes 20%
No 80%
Cancelled?
Calm-weather odds: 5% · changed +4 pts in 24h
+4 pts
6%
Yes 6%
No 94%
How late will it get to FLL?
On time or early
39%
15–30 min late
24%
30 min–1 hour late
12%
1–2 hours late
12%
Over 2 hours late
7%
Cancelled
6%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Gusts to 33 kt, visibility down to 1 mi, 2.3 in of rain, thunderstorms forecast at FLL that day
↑
This flight has been late 41% of the time recently
↑
Arrivals into FLL at that hour are often late
↓
Mostly benign weather forecast at TYS
↓
Thursdays in October are usually quieter than average
Weather at each end
TYS (origin)
Gusts 14 kt Ceiling none (clear) Visibility 10+ mi Precip none
FLL (destination)
Gusts 33 kt Ceiling 1,500 ft Visibility 1 mi Precip 2.25 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.