Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 574
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5 Tomorrow
G4 574 · PDX → GRR
departs 4:01 PM PT · arrives 10:58 PM ET
Forecast issued Sun 9:00 AM ET · 34h before departure
Watch this flight
Other days
Mon 10/5
Fri 10/9 23%
Odds over time
Arrive at GRR more than 15 minutes late?
22%
chance · ±3 pts
+4 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
22%
Leave 15+ late
24%
Arrive 1h+ late
7%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.8d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at GRR more than 15 minutes late?
Calm-weather odds: 16% · changed +4 pts in 24h
+4 pts
22%
Yes 22%
No 78%
Leave PDX more than 15 minutes late?
Calm-weather odds: 22% · changed +2 pts in 24h
+2 pts
24%
Yes 24%
No 76%
Arrive at GRR more than an hour late?
Calm-weather odds: 5% · changed +2 pts in 24h
+2 pts
7%
Yes 7%
No 93%
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
77%
15–30 min late
7%
30 min–1 hour late
8%
1–2 hours late
5%
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
↑
G4's recent on-time record
↑
Other factors
↑
Later flights pick up delays from earlier in the day
↓
Mondays in October are usually quieter than average
↓
Mostly benign weather forecast at GRR
Weather at each end
PDX (origin)
Gusts 12 kt Ceiling none (clear) Visibility 0.5 mi Precip none
GRR (destination)
Gusts 15 kt Ceiling none (clear) 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.