Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
JETBLUE · FLIGHT B6 677
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
B6 677 · JFK → JAX
departs 1:59 PM ET · arrives 4:34 PM ET
Forecast issued Wed 8:00 PM ET · 66h before departure
Watch this flight
Other days
Today 20%
Thu 10/1 37%
Fri 10/2 30%
Sat 10/3
Sun 10/4 28%
Mon 10/5 25%
Tue 10/6 19%
Odds over time
Arrive at JAX more than 15 minutes late?
28%
chance · ±2 pts
+5 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
28%
Leave 15+ late
25%
Arrive 1h+ late
9%
Cancelled
1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.7d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at JAX more than 15 minutes late?
Calm-weather odds: 20% · changed +5 pts in 24h
+5 pts
28%
Yes 28%
No 72%
Leave JFK more than 15 minutes late?
Calm-weather odds: 18% · changed +4 pts in 24h
+4 pts
25%
Yes 25%
No 75%
Arrive at JAX more than an hour late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
9%
Yes 9%
No 91%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to JAX?
On time or early
71%
15–30 min late
10%
30 min–1 hour late
9%
1–2 hours late
4%
Over 2 hours late
5%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 800 ft forecast at JAX that day
↑
B6's recent on-time record
↑
JFK is prone to delays
↓
Mostly benign weather forecast at JFK
↓
JFK is quiet at that time
Weather at each end
JFK (origin)
Gusts 16 kt Ceiling 5,867 ft Visibility 10+ mi Precip none
JAX (destination)
Gusts 14 kt Ceiling 800 ft Visibility 5 mi Precip 0.14 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.