Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 1215
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
G4 1215 · BLV → SFB
departs 8:36 AM CT · arrives 11:54 AM ET
Forecast issued Sun 7:00 AM ET · 27h before departure
Watch this flight
Odds over time
Arrive at SFB more than 15 minutes late?
18%
chance · ±4 pts
−3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
18%
Leave 15+ late
16%
Arrive 1h+ late
8%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.4d
2d
Now
12h
6h
Departs
Lands
Arrive at SFB more than 15 minutes late?
Calm-weather odds: 16% · changed −3 pts in 24h
−3 pts
18%
Yes 18%
No 82%
Leave BLV more than 15 minutes late?
Calm-weather odds: 16% · changed +0 pts in 24h
+0 pts
16%
Yes 16%
No 84%
Arrive at SFB more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
8%
Yes 8%
No 92%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SFB?
On time or early
82%
15–30 min late
5%
30 min–1 hour late
6%
1–2 hours late
5%
Over 2 hours late
3%
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 25% of the time recently
↑
G4's recent on-time record
↑
Other factors
↓
Mostly benign weather forecast at BLV
↓
Early flights usually leave on time
Weather at each end
BLV (origin)
Gusts 9 kt Ceiling none (clear) Visibility 10+ mi Precip none
SFB (destination)
Gusts 10 kt Ceiling 1,700 ft Visibility 8 mi Precip 0.44 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.