Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 508
SCHEDULED · TYPICAL SCHEDULE
Sunday, October 4 Today
G4 508 · BNA → FLL
departs 8:19 PM CT · arrives 11:32 PM ET
Forecast issued Sun 7:00 AM ET · 14h before departure
Watch this flight
Odds over time
Arrive at FLL more than 15 minutes late?
50%
chance · ±4 pts
+9 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
50%
Leave 15+ late
45%
Arrive 1h+ late
15%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
6.0d
2d
1d
Now
6h
Departs
Lands
Arrive at FLL more than 15 minutes late?
Calm-weather odds: 46% · changed +9 pts in 24h
+9 pts
50%
Yes 50%
No 50%
Leave BNA more than 15 minutes late?
Calm-weather odds: 37% · changed +5 pts in 24h
+5 pts
45%
Yes 45%
No 55%
Arrive at FLL more than an hour late?
Calm-weather odds: 13% · changed −2 pts in 24h
−2 pts
15%
Yes 15%
No 85%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to FLL?
On time or early
50%
15–30 min late
15%
30 min–1 hour late
19%
1–2 hours late
9%
Over 2 hours late
6%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
G4's recent on-time record
↑
This flight has been late 51% of the time recently
↑
8pm departures from BNA are often late
↓
Cloud base down to 700 ft forecast at BNA that day
↓
Sundays in October are usually quieter than average
Weather at each end
BNA (origin)
Gusts 11 kt Ceiling 700 ft Visibility 10+ mi Precip none
FLL (destination)
Gusts 17 kt Ceiling 3,000 ft Visibility 10+ mi Precip 0.07 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.