Schedule: a typical summer Tuesday (the flights of Jul 28, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
JETBLUE · FLIGHT B6 303
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29
B6 303 · JFK → SJU
departs 8:00 PM ET · arrives 12:13 AM AT
Forecast issued Tue 10:00 PM ET · 2h after departure
Watch this flight
Other days
Tue 9/29
Today 50%
Sun 10/4 64%
Mon 10/5 41%
Fri 10/9 34%
Odds over time
Arrive at SJU more than 15 minutes late?
33%
chance · ±0 pts
−4 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
33%
Leave 15+ late
44%
Arrive 1h+ late
14%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
1d
12h
6h
Departs
Now
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 37% · changed −4 pts in 24h
−4 pts
33%
Yes 33%
No 67%
Leave JFK more than 15 minutes late?
Calm-weather odds: 42% · changed +2 pts in 24h
+2 pts
44%
Yes 44%
No 56%
Arrive at SJU more than an hour late?
Calm-weather odds: 12% · changed −1 pt in 24h
−1 pt
14%
Yes 14%
No 86%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SJU?
On time or early
67%
15–30 min late
5%
30 min–1 hour late
14%
1–2 hours late
8%
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
↑
B6's recent on-time record
↑
8pm departures from JFK are often late
↑
This flight has been late 39% of the time recently
↓
Tuesdays in September are usually quieter than average
↓
Mostly benign weather forecast at JFK
Weather at each end
JFK (origin)
Gusts 10 kt Ceiling 1,800 ft Visibility 10+ mi Precip none
SJU (destination)
Gusts 25 kt Ceiling 7,840 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.