Schedule: the flights that flew on Friday, Oct 23, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 1223
SCHEDULED · TYPICAL SCHEDULE
Friday, October 30 Tomorrow
G4 1223 · SWF → SFB
departs 5:38 PM ET · arrives 8:34 PM ET
Forecast issued Thu 5:00 AM ET · 37h before departure
Watch this flight
Odds over time
Arrive at SFB more than 15 minutes late?
33%
chance · ±4 pts
+3 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
33%
Leave 15+ late
35%
Arrive 1h+ late
25%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
6.7d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at SFB more than 15 minutes late?
Calm-weather odds: 25% · changed +3 pts in 24h
+3 pts
33%
Yes 33%
No 67%
Leave SWF more than 15 minutes late?
Calm-weather odds: 38% · changed −4 pts in 24h
−4 pts
35%
Yes 35%
No 65%
Arrive at SFB more than an hour late?
Calm-weather odds: 13% · changed +4 pts in 24h
+4 pts
25%
Yes 25%
No 75%
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
66%
15–30 min late
11%
30 min–1 hour late
0%
1–2 hours late
15%
Over 2 hours late
7%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Later flights pick up delays from earlier in the day
↑
G4's recent on-time record
↑
This flight has been late 30% of the time recently
↓
Mostly benign weather forecast at SWF
↓
SWF is quiet at that time
Weather at each end
SWF (origin)
Gusts 20 kt Ceiling 10,000 ft Visibility 10+ mi Precip none
SFB (destination)
Gusts 24 kt Ceiling 3,833 ft Visibility 10+ mi Precip 0.04 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.