Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
ALLEGIANT · FLIGHT G4 1435
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
G4 1435 · SFB → TYS
departs 4:48 PM ET · arrives 6:25 PM ET
Forecast issued Wed 10:00 PM ET · 5h after departure
Watch this flight
Odds over time
Arrive at TYS more than 15 minutes late?
27%
chance · ±0 pts
+3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
27%
Leave 15+ late
27%
Arrive 1h+ late
10%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at TYS more than 15 minutes late?
Calm-weather odds: 27% · changed +3 pts in 24h
+3 pts
27%
Yes 27%
No 73%
Leave SFB more than 15 minutes late?
Calm-weather odds: 27% · changed +3 pts in 24h
+3 pts
27%
Yes 27%
No 73%
Arrive at TYS more than an hour late?
Calm-weather odds: 10% · changed +1 pt in 24h
+1 pt
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to TYS?
On time or early
72%
15–30 min late
12%
30 min–1 hour late
5%
1–2 hours late
7%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 24% of the time recently
↑
Later flights pick up delays from earlier in the day
↑
4pm departures from SFB are often late
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at TYS
Weather at each end
SFB (origin)
Gusts 8 kt Ceiling 7,500 ft Visibility 10+ mi Precip 0.21 in
TYS (destination)
Gusts 6 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.