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 550
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1 Today
G4 550 · GRR → PIE
departs 3:19 PM ET · arrives 5:59 PM ET
Forecast issued Thu 7:00 AM ET · 8h before departure
Watch this flight
Odds over time
Arrive at PIE more than 15 minutes late?
58%
chance · ±0 pts
+16 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
58%
Leave 15+ late
45%
Arrive 1h+ late
22%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.8d
2d
1d
12h
Now
6h
Departs
Lands
Arrive at PIE more than 15 minutes late?
Calm-weather odds: 26% · changed +16 pts in 24h
+16 pts
58%
Yes 58%
No 42%
Leave GRR more than 15 minutes late?
Calm-weather odds: 25% · changed +10 pts in 24h
+10 pts
45%
Yes 45%
No 55%
Arrive at PIE more than an hour late?
Calm-weather odds: 12% · changed −4 pts in 24h
−4 pts
22%
Yes 22%
No 78%
Cancelled?
Calm-weather odds: <1% · changed +1 pt in 24h
+1 pt
2%
Yes 2%
No 98%
How late will it get to PIE?
On time or early
41%
15–30 min late
8%
30 min–1 hour late
27%
1–2 hours late
5%
Over 2 hours late
16%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
0.4 in of rain, thunderstorms forecast at PIE that day
↑
Cloud base down to 600 ft, visibility down to 2 mi, 0.8 in of rain forecast at GRR that day
↑
G4's recent on-time record
↓
GRR usually runs smoothly
↓
GRR is quiet at that time
Weather at each end
GRR (origin)
Gusts 18 kt Ceiling 600 ft Visibility 2 mi Precip 0.80 in
PIE (destination)
Gusts 18 kt Ceiling 7,000 ft Visibility 10+ mi Precip 0.44 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.