Schedule: a typical summer Thursday (the flights of Jul 30, 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
Thursday, October 1
B6 303 · JFK → SJU
departs 8:00 PM ET · arrives 12:13 AM AT
Forecast issued Thu 10:00 PM ET · 2h after departure
Watch this flight
Other days
Thu 10/1
Today 68%
Mon 10/5 39%
Fri 10/9 34%
Odds over time
Arrive at SJU more than 15 minutes late?
44%
chance · ±1 pts
−2 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
44%
Leave 15+ late
55%
Arrive 1h+ late
18%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.8d
2d
1d
12h
6h
Departs
Now
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 41% · changed −2 pts in 24h
−2 pts
44%
Yes 44%
No 56%
Leave JFK more than 15 minutes late?
Calm-weather odds: 55% · changed −2 pts in 24h
−2 pts
55%
Yes 55%
No 45%
Arrive at SJU more than an hour late?
Calm-weather odds: 17% · changed +0 pts in 24h
+0 pts
18%
Yes 18%
No 82%
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
56%
15–30 min late
9%
30 min–1 hour late
16%
1–2 hours late
11%
Over 2 hours late
7%
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
↑
This flight has been late 42% of the time recently
↑
8pm departures from JFK are often late
↓
Mostly benign weather forecast at JFK
↓
Thursdays in October are usually quieter than average
Weather at each end
JFK (origin)
Gusts 10 kt Ceiling 5,000 ft Visibility 8 mi Precip none
SJU (destination)
Gusts 25 kt Ceiling 3,200 ft Visibility 10+ 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.