Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 2163
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 28 Today
G4 2163 · SFB → GRR
departs 2:21 PM ET · arrives 5:10 PM ET
Forecast issued Wed 2:00 AM ET · 12h before departure
Watch this flight
Odds over time
Arrive at GRR more than 15 minutes late?
20%
chance · ±0 pts
+4 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
20%
Leave 15+ late
23%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.6d
2d
1d
Now
6h
Departs
Lands
Arrive at GRR more than 15 minutes late?
Calm-weather odds: 11% · changed +4 pts in 24h
+4 pts
20%
Yes 20%
No 80%
Leave SFB more than 15 minutes late?
Calm-weather odds: 18% · changed −6 pts in 24h
−6 pts
23%
Yes 23%
No 77%
Arrive at GRR more than an hour late?
Calm-weather odds: 4% · changed −3 pts in 24h
−3 pts
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed −2 pts in 24h
−2 pts
<1%
Yes <1%
No 99%
How late will it get to GRR?
On time or early
79%
15–30 min late
8%
30 min–1 hour late
6%
1–2 hours late
2%
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
↑
Gusts to 31 kt forecast at SFB that day
↑
2pm departures from SFB are often late
↑
This flight has been late 26% of the time recently
↓
Wednesdays in October are usually quieter than average
↓
GRR usually runs smoothly
Weather at each end
SFB (origin)
Gusts 31 kt Ceiling 2,200 ft Visibility 10+ mi Precip 0.07 in
GRR (destination)
Gusts 15 kt Ceiling 8,500 ft Visibility 10+ mi Precip 0.02 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.