Schedule: the flights that flew on Wednesday, Oct 21, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 3221
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 28 Today
G4 3221 · IWA → BIL
departs 8:29 PM MSK · arrives 1:53 PM MT
Forecast issued Wed 12:00 AM ET · 14h before departure
Watch this flight
Odds over time
Arrive at BIL more than 15 minutes late?
16%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
16%
Leave 15+ late
19%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.6d
2d
1d
Now
6h
Departs
Lands
Arrive at BIL more than 15 minutes late?
Calm-weather odds: 14% · changed +1 pt in 24h
+1 pt
16%
Yes 16%
No 84%
Leave IWA more than 15 minutes late?
Calm-weather odds: 19% · changed +2 pts in 24h
+2 pts
19%
Yes 19%
No 81%
Arrive at BIL more than an hour late?
Calm-weather odds: 4% · changed +0 pts in 24h
+0 pts
4%
Yes 4%
No 96%
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
84%
15–30 min late
7%
30 min–1 hour late
4%
1–2 hours late
3%
Over 2 hours late
1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This route's recent record
↑
Later flights pick up delays from earlier in the day
↑
G4's recent on-time record
↓
Wednesdays in October are usually quieter than average
↓
Mostly benign weather forecast at IWA
Weather at each end
IWA (origin)
Gusts 9 kt Ceiling none (clear) Visibility 10+ mi Precip none
BIL (destination)
Gusts 14 kt Ceiling none (clear) 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.