Schedule: a typical summer Thursday (the flights of Jul 30, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 1604
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
G4 1604 · AZA → BIL
departs 1:47 PM MT · arrives 5:06 PM MT
Forecast issued Thu 10:00 PM ET · 5h after departure
Watch this flight
Other days
Thu 10/1
Today 32%
Wed 10/7 8%
Odds over time
Arrive at BIL more than 15 minutes late?
25%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
25%
Leave 15+ late
21%
Arrive 1h+ late
5%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
1d
12h
6h
Departs
Lands
Arrive at BIL more than 15 minutes late?
Calm-weather odds: 25% · changed −1 pt in 24h
−1 pt
25%
Yes 25%
No 75%
Leave AZA more than 15 minutes late?
Calm-weather odds: 21% · changed +1 pt in 24h
+1 pt
21%
Yes 21%
No 79%
Arrive at BIL more than an hour late?
Calm-weather odds: 5% · changed +0 pts in 24h
+0 pts
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 BIL?
On time or early
75%
15–30 min late
14%
30 min–1 hour late
6%
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
↑
G4's recent on-time record
↑
1pm departures from AZA are often late
↑
Early flights usually leave on time
↓
Mostly benign weather forecast at AZA
↓
BIL usually runs smoothly
Weather at each end
AZA (origin)
Gusts 9 kt Ceiling none (clear) Visibility 10+ mi Precip none
BIL (destination)
Gusts 13 kt Ceiling 5,500 ft Visibility 10+ mi Precip 0.01 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.