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 377
SCHEDULED · TYPICAL SCHEDULE
Friday, October 2
G4 377 · OKC → GUF
departs 5:10 PM CT · arrives 7:14 PM CT
Forecast issued Fri 10:00 PM ET · 4h after departure
Watch this flight
Other days
Fri 10/2
Mon 10/5 25%
Fri 10/9 26%
Odds over time
Arrive at GUF more than 15 minutes late?
30%
chance · ±0 pts
−9 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
30%
Leave 15+ late
31%
Arrive 1h+ late
13%
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: 30% · changed −9 pts in 24h
−9 pts
30%
Yes 30%
No 70%
Leave OKC more than 15 minutes late?
Calm-weather odds: 30% · changed −4 pts in 24h
−4 pts
31%
Yes 31%
No 69%
Arrive at GUF more than an hour late?
Calm-weather odds: 13% · changed +0 pts in 24h
+0 pts
13%
Yes 13%
No 87%
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
69%
15–30 min late
11%
30 min–1 hour late
6%
1–2 hours late
7%
Over 2 hours late
6%
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 forecast at GUF that day
↑
Later flights pick up delays from earlier in the day
↑
G4's recent on-time record
↓
GUF usually runs smoothly
↓
OKC usually runs smoothly
Weather at each end
OKC (origin)
Gusts 22 kt Ceiling 400 ft Visibility 2.5 mi Precip 0.10 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.