Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
ALLEGIANT · FLIGHT G4 544
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Tomorrow
G4 544 · LAS → GRR
departs 2:20 PM PT · arrives 9:10 PM ET
Forecast issued Wed 2:00 AM ET · 39h before departure
Watch this flight
Other days
Thu 10/1
Sun 10/4 26%
Odds over time
Arrive at GRR more than 15 minutes late?
26%
chance · ±4 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
26%
Leave 15+ late
22%
Arrive 1h+ late
10%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at GRR more than 15 minutes late?
Calm-weather odds: 23% · changed +0 pts in 24h
+0 pts
26%
Yes 26%
No 74%
Leave LAS more than 15 minutes late?
Calm-weather odds: 19% · changed +0 pts in 24h
+0 pts
22%
Yes 22%
No 78%
Arrive at GRR more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to GRR?
On time or early
73%
15–30 min late
8%
30 min–1 hour late
8%
1–2 hours late
7%
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
↑
Cloud base down to 600 ft, visibility down to 2 mi, 0.9 in of rain forecast at GRR that day
↑
2pm departures from LAS are often late
↑
Later flights pick up delays from earlier in the day
↓
GRR usually runs smoothly
↓
Mostly benign weather forecast at LAS
Weather at each end
LAS (origin)
Gusts 9 kt Ceiling none (clear) Visibility 10+ mi Precip none
GRR (destination)
Gusts 15 kt Ceiling 600 ft Visibility 2 mi Precip 0.91 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.