Schedule: a typical Tuesday (the flights of Jul 28, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
JETBLUE · FLIGHT B6 304
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29
B6 304 · SJU → JFK
departs 6:30 PM AT · arrives 10:28 PM ET
Forecast issued Tue 10:00 PM ET · 4h after departure
Watch this flight
Other days
Tue 9/29
Today 35%
Fri 10/2 31%
Sat 10/3 31%
Sun 10/4 34%
Mon 10/5 28%
Tue 10/6 27%
Wed 10/7 27%
Odds over time
Arrive at JFK more than 15 minutes late?
24%
chance · ±0 pts
−2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
24%
Leave 15+ late
28%
Arrive 1h+ late
10%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at JFK more than 15 minutes late?
Calm-weather odds: 24% · changed −2 pts in 24h
−2 pts
24%
Yes 24%
No 76%
Leave SJU more than 15 minutes late?
Calm-weather odds: 30% · changed −2 pts in 24h
−2 pts
28%
Yes 28%
No 72%
Arrive at JFK more than an hour late?
Calm-weather odds: 9% · changed −3 pts in 24h
−3 pts
10%
Yes 10%
No 90%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to JFK?
On time or early
75%
15–30 min late
9%
30 min–1 hour late
5%
1–2 hours late
6%
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
↑
B6's recent on-time record
↑
Later flights pick up delays from earlier in the day
↑
Arrivals into JFK at that hour are often late
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at JFK
Weather at each end
SJU (origin)
Gusts 25 kt Ceiling 7,840 ft Visibility 10+ mi Precip none
JFK (destination)
Gusts 10 kt Ceiling 1,800 ft 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.