Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
ALLEGIANT · FLIGHT G4 557
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Yesterday
G4 557 · GRR → AZA
departs 9:00 AM ET · arrives 9:49 AM MT
Forecast issued Wed 10:00 PM ET · 13h after departure
Watch this flight
Other days
Wed 9/30
Wed 10/7 14%
Odds over time
Arrive at AZA more than 15 minutes late?
12%
chance · ±0 pts
+0 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
12%
Leave 15+ late
16%
Arrive 1h+ late
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at AZA more than 15 minutes late?
Calm-weather odds: 12% · changed +0 pts in 24h
+0 pts
12%
Yes 12%
No 88%
Leave GRR more than 15 minutes late?
Calm-weather odds: 16% · changed +1 pt in 24h
+1 pt
16%
Yes 16%
No 84%
Arrive at AZA more than an hour late?
Calm-weather odds: 5% · changed +1 pt in 24h
+1 pt
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to AZA?
On time or early
88%
15–30 min late
2%
30 min–1 hour late
5%
1–2 hours late
3%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
AZA is prone to delays
↑
This flight has been late 18% of the time recently
↑
G4's recent on-time record
↓
GRR usually runs smoothly
↓
Arrivals into AZA at that hour are usually not late
Weather at each end
GRR (origin)
Gusts 11 kt Ceiling 600 ft Visibility 1.25 mi Precip 0.35 in
AZA (destination)
Gusts 9 kt Ceiling 5,000 ft Visibility 10+ mi Precip none
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.