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 1249
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
G4 1249 · USA → SFB
departs 8:44 PM ET · arrives 10:16 PM ET
Forecast issued Fri 10:00 PM ET · 1h after departure
Watch this flight
Other days
Fri 10/2
Fri 10/9 40%
Odds over time
Arrive at SFB more than 15 minutes late?
41%
chance · ±0 pts
−3 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
41%
Leave 15+ late
42%
Arrive 1h+ late
21%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
3.9d
2d
1d
12h
6h
Departs
Lands
Arrive at SFB more than 15 minutes late?
Calm-weather odds: 41% · changed −3 pts in 24h
−3 pts
41%
Yes 41%
No 59%
Leave USA more than 15 minutes late?
Calm-weather odds: 40% · changed +3 pts in 24h
+3 pts
42%
Yes 42%
No 58%
Arrive at SFB more than an hour late?
Calm-weather odds: 21% · changed +2 pts in 24h
+2 pts
21%
Yes 21%
No 79%
Cancelled?
Calm-weather odds: 2% · changed +0 pts in 24h
+0 pts
2%
Yes 2%
No 98%
How late will it get to SFB?
On time or early
57%
15–30 min late
15%
30 min–1 hour late
5%
1–2 hours late
14%
Over 2 hours late
7%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 32% of the time recently
↑
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
↓
Mostly benign weather forecast at USA
↓
USA is quiet at that time
Weather at each end
USA (origin)
Gusts 17 kt Ceiling none (clear) Visibility 10+ mi Precip none
SFB (destination)
Gusts 25 kt Ceiling 2,300 ft Visibility 6 mi Precip 1.04 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.