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 1246
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Today
G4 1246 · GRR → SFB
departs 10:33 AM ET · arrives 1:07 PM ET
Forecast issued Mon 12:00 PM ET · 1h after departure
Watch this flight
Odds over time
Arrive at SFB more than 15 minutes late?
14%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
14%
Leave 15+ late
13%
Arrive 1h+ late
7%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.4d
2d
1d
12h
6h
Departs
Now
Lands
Arrive at SFB more than 15 minutes late?
Calm-weather odds: 13% · changed +1 pt in 24h
+1 pt
14%
Yes 14%
No 86%
Leave GRR more than 15 minutes late?
Calm-weather odds: 12% · changed −4 pts in 24h
−4 pts
13%
Yes 13%
No 87%
Arrive at SFB more than an hour late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
7%
Yes 7%
No 93%
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
85%
15–30 min late
3%
30 min–1 hour late
3%
1–2 hours late
3%
Over 2 hours late
4%
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 24% of the time recently
↑
0.5 in of rain forecast at SFB that day
↓
Mostly benign weather forecast at GRR
↓
Mondays in October are usually quieter than average
Weather at each end
GRR (origin)
Gusts 15 kt Ceiling none (clear) Visibility 10+ mi Precip none
SFB (destination)
Gusts 10 kt Ceiling 1,100 ft Visibility 5 mi Precip 0.46 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.