Schedule: a typical summer Friday (the flights of Jul 31, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 583
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
G4 583 · GRR → PDX
departs 1:45 PM ET · arrives 3:11 PM PT
Forecast issued Fri 10:00 PM ET · 8h after departure
Watch this flight
Other days
Fri 10/2
Mon 10/5 13%
Fri 10/9 16%
Odds over time
Arrive at PDX more than 15 minutes late?
14%
chance · ±0 pts
+1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
14%
Leave 15+ late
14%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
3.7d
2d
1d
12h
6h
Departs
Lands
Arrive at PDX more than 15 minutes late?
Calm-weather odds: 14% · changed +1 pt in 24h
+1 pt
14%
Yes 14%
No 86%
Leave GRR more than 15 minutes late?
Calm-weather odds: 14% · changed −3 pts in 24h
−3 pts
14%
Yes 14%
No 86%
Arrive at PDX more than an hour late?
Calm-weather odds: 6% · changed +0 pts in 24h
+0 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to PDX?
On time or early
85%
15–30 min late
3%
30 min–1 hour late
5%
1–2 hours late
4%
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
↑
Early flights usually leave on time
↓
Mostly benign weather forecast at PDX
↓
GRR usually runs smoothly
Weather at each end
GRR (origin)
Gusts 18 kt Ceiling 900 ft Visibility 7 mi Precip 0.24 in
PDX (destination)
Gusts 7 kt Ceiling none (clear) Visibility 7 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.