Schedule: a typical summer Saturday (the flights of Jul 25, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 977
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3 Yesterday
G4 977 · GUF → BLV
departs 3:20 PM CT · arrives 5:03 PM CT
Forecast issued Sat 10:00 PM ET · 6h after departure
Watch this flight
Odds over time
Arrive at BLV more than 15 minutes late?
22%
chance · ±0 pts
−11 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
22%
Leave 15+ late
22%
Arrive 1h+ late
12%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.8d
2d
1d
12h
6h
Departs
Lands
Arrive at BLV more than 15 minutes late?
Calm-weather odds: 21% · changed −11 pts in 24h
−11 pts
22%
Yes 22%
No 78%
Leave GUF more than 15 minutes late?
Calm-weather odds: 22% · changed −6 pts in 24h
−6 pts
22%
Yes 22%
No 78%
Arrive at BLV more than an hour late?
Calm-weather odds: 12% · changed −6 pts in 24h
−6 pts
12%
Yes 12%
No 88%
Cancelled?
Calm-weather odds: 1% · changed −6 pts in 24h
−6 pts
1%
Yes 1%
No 99%
How late will it get to BLV?
On time or early
77%
15–30 min late
7%
30 min–1 hour late
3%
1–2 hours late
8%
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
↑
Cloud base down to 1,400 ft, visibility down to 1 mi, 0.9 in of rain forecast at GUF that day
↑
G4's recent on-time record
↑
This flight has been late 29% of the time recently
↓
Mostly benign weather forecast at BLV
↓
GUF usually runs smoothly
Weather at each end
GUF (origin)
Gusts 15 kt Ceiling 1,400 ft Visibility 1 mi Precip 0.23 in
BLV (destination)
Gusts 7 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.