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 1312
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
G4 1312 · SFB → TYS
departs 7:40 PM ET · arrives 9:15 PM ET
Forecast issued Fri 10:00 PM ET · 2h after departure
Watch this flight
Other days
Fri 10/2
Fri 10/9 44%
Odds over time
Arrive at TYS more than 15 minutes late?
42%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
42%
Leave 15+ late
47%
Arrive 1h+ late
20%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
3.9d
2d
1d
12h
6h
Departs
Lands
Now
Arrive at TYS more than 15 minutes late?
Calm-weather odds: 41% · changed +1 pt in 24h
+1 pt
42%
Yes 42%
No 58%
Leave SFB more than 15 minutes late?
Calm-weather odds: 47% · changed +2 pts in 24h
+2 pts
47%
Yes 47%
No 53%
Arrive at TYS more than an hour late?
Calm-weather odds: 16% · changed +4 pts in 24h
+4 pts
20%
Yes 20%
No 80%
Cancelled?
Calm-weather odds: 1% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to TYS?
On time or early
57%
15–30 min late
13%
30 min–1 hour late
9%
1–2 hours late
12%
Over 2 hours late
8%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Gusts to 25 kt, 1.3 in of rain, thunderstorms forecast at SFB that day
↑
Later flights pick up delays from earlier in the day
↑
7pm departures from SFB are often late
↓
SFB usually runs smoothly
↓
TYS usually runs smoothly
Weather at each end
SFB (origin)
Gusts 25 kt Ceiling 2,300 ft Visibility 6 mi Precip 1.04 in
TYS (destination)
Gusts 12 kt Ceiling 4,500 ft 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.