Schedule: the flights that flew on Wednesday, Oct 7, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
ALLEGIANT · FLIGHT G4 1399
SCHEDULED · TYPICAL SCHEDULE
Wednesday, October 14 Tomorrow
G4 1399 · BOS → TYS
departs 11:30 AM ET · arrives 2:04 PM ET
Forecast issued Mon 11:00 PM ET · 36h before departure
Watch this flight
Other days
Today 24%
Wed 10/14
Sat 10/17 11%
Odds over time
Arrive at TYS more than 15 minutes late?
14%
chance · ±2 pts
+0 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
14%
Leave 15+ late
12%
Arrive 1h+ late
5%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
6.5d
2d
Now
1d
12h
6h
Departs
Lands
Arrive at TYS more than 15 minutes late?
Calm-weather odds: 7% · changed +0 pts in 24h
+0 pts
14%
Yes 14%
No 86%
Leave BOS more than 15 minutes late?
Calm-weather odds: 9% · changed −1 pt in 24h
−1 pt
12%
Yes 12%
No 88%
Arrive at TYS more than an hour late?
Calm-weather odds: 3% · changed +1 pt in 24h
+1 pt
5%
Yes 5%
No 95%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to TYS?
On time or early
85%
15–30 min late
2%
30 min–1 hour late
6%
1–2 hours late
3%
Over 2 hours late
2%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 200 ft, visibility down to 0.5 mi forecast at BOS that day
↑
BOS is prone to delays
↑
G4's recent on-time record
↓
Wednesdays in October are usually quieter than average
↓
Mostly benign weather forecast at TYS
Weather at each end
BOS (origin)
Gusts 20 kt Ceiling 200 ft Visibility 0.5 mi Precip 0.01 in
TYS (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.