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 998
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
G4 998 · BLV → GUF
departs 3:13 PM CT · arrives 4:59 PM CT
Forecast issued Fri 10:00 PM ET · 6h after departure
Watch this flight
Other days
Fri 10/2
Mon 10/5 27%
Fri 10/9 22%
Odds over time
Arrive at GUF more than 15 minutes late?
24%
chance · ±0 pts
−13 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
24%
Leave 15+ late
25%
Arrive 1h+ late
10%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
3.8d
2d
1d
12h
6h
Departs
Lands
Arrive at GUF more than 15 minutes late?
Calm-weather odds: 21% · changed −13 pts in 24h
−13 pts
24%
Yes 24%
No 76%
Leave BLV more than 15 minutes late?
Calm-weather odds: 25% · changed −8 pts in 24h
−8 pts
25%
Yes 25%
No 75%
Arrive at GUF more than an hour late?
Calm-weather odds: 8% · changed −6 pts in 24h
−6 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
<1%
Yes <1%
No 99%
How late will it get to GUF?
On time or early
75%
15–30 min late
8%
30 min–1 hour late
6%
1–2 hours late
7%
Over 2 hours late
3%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 500 ft, visibility down to 2 mi, 0.6 in of rain forecast at GUF that day
↑
G4's recent on-time record
↑
3pm departures from BLV are often late
↓
GUF usually runs smoothly
↓
Cloud base down to 400 ft forecast at BLV that day
Weather at each end
BLV (origin)
Gusts 16 kt Ceiling 400 ft Visibility 5 mi Precip 0.04 in
GUF (destination)
Gusts 17 kt Ceiling 500 ft Visibility 2 mi Precip 0.08 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.