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 543
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
G4 543 · GRR → AUS
departs 3:40 PM ET · arrives 5:26 PM CT
Forecast issued Thu 7:00 AM ET · 9h before departure
Watch this flight
Other days
Today
Sun 10/4 24%
Odds over time
Arrive at AUS more than 15 minutes late?
78%
chance · ±0 pts
+9 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
78%
Leave 15+ late
48%
Arrive 1h+ late
41%
Cancelled
4%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
25%
50%
75%
100%
2.8d
2d
1d
12h
Now
6h
Departs
Lands
Arrive at AUS more than 15 minutes late?
Calm-weather odds: 30% · changed +9 pts in 24h
+9 pts
78%
Yes 78%
No 22%
Leave GRR more than 15 minutes late?
Calm-weather odds: 28% · changed −2 pts in 24h
−2 pts
48%
Yes 48%
No 52%
Arrive at AUS more than an hour late?
Calm-weather odds: 13% · changed +3 pts in 24h
+3 pts
41%
Yes 41%
No 59%
Cancelled?
Calm-weather odds: <1% · changed +2 pts in 24h
+2 pts
4%
Yes 4%
No 96%
How late will it get to AUS?
On time or early
21%
15–30 min late
10%
30 min–1 hour late
25%
1–2 hours late
22%
Over 2 hours late
17%
Cancelled
4%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 1,033 ft, 2.0 in of rain, thunderstorms forecast at AUS that day
↑
Cloud base down to 600 ft, visibility down to 2 mi, 0.8 in of rain forecast at GRR that day
↑
Arrivals into AUS at that hour are often late
↓
GRR usually runs smoothly
↓
Thursdays in October are usually quieter than average
Weather at each end
GRR (origin)
Gusts 18 kt Ceiling 600 ft Visibility 2 mi Precip 0.80 in
AUS (destination)
Gusts 20 kt Ceiling 1,100 ft Visibility 7 mi Precip 1.98 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.