Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 687
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30
G4 687 · SBN → AZA
departs 1:50 PM ET · arrives 2:31 PM MT
Forecast issued Wed 10:00 PM ET · 8h after departure
Watch this flight
Odds over time
Arrive at AZA more than 15 minutes late?
28%
chance · ±0 pts
+9 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
28%
Leave 15+ late
24%
Arrive 1h+ late
7%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.7d
2d
1d
12h
6h
Departs
Lands
Arrive at AZA more than 15 minutes late?
Calm-weather odds: 28% · changed +9 pts in 24h
+9 pts
28%
Yes 28%
No 72%
Leave SBN more than 15 minutes late?
Calm-weather odds: 24% · changed +5 pts in 24h
+5 pts
24%
Yes 24%
No 76%
Arrive at AZA more than an hour late?
Calm-weather odds: 7% · 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 AZA?
On time or early
72%
15–30 min late
12%
30 min–1 hour late
9%
1–2 hours late
3%
Over 2 hours late
4%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
This flight has been late 28% of the time recently
↑
Mostly benign weather forecast at SBN
↑
1pm departures from SBN are often late
↓
SBN usually runs smoothly
↓
Wednesdays in September are usually quieter than average
Weather at each end
SBN (origin)
Gusts 10 kt Ceiling 3,600 ft Visibility 5 mi Precip 0.42 in
AZA (destination)
Gusts 9 kt Ceiling 5,000 ft 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.