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 1603
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
B6 1603 · JFK → SJU
departs 1:00 PM ET · arrives 4:57 PM AT
Forecast issued Thu 3:00 PM ET · 46h before departure
Watch this flight
Other days
Today 27%
Fri 10/2 19%
Sat 10/3
Sun 10/4 25%
Mon 10/5 23%
Tue 10/6 21%
Wed 10/7 21%
Odds over time
Arrive at SJU more than 15 minutes late?
30%
chance · ±2 pts
+4 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
30%
Leave 15+ late
31%
Arrive 1h+ late
9%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
4.6d
Now
1d
12h
6h
Departs
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 22% · changed +4 pts in 24h
+4 pts
30%
Yes 30%
No 70%
Leave JFK more than 15 minutes late?
Calm-weather odds: 27% · changed −4 pts in 24h
−4 pts
31%
Yes 31%
No 69%
Arrive at SJU more than an hour late?
Calm-weather odds: 5% · 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 SJU?
On time or early
70%
15–30 min late
14%
30 min–1 hour late
6%
1–2 hours late
5%
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
↑
This flight has been late 23% of the time recently
↑
Mostly benign weather forecast at SJU
↓
JFK is quiet at that time
↓
Mostly benign weather forecast at JFK
Weather at each end
JFK (origin)
Gusts 14 kt Ceiling 5,333 ft Visibility 10+ mi Precip none
SJU (destination)
Gusts 13 kt Ceiling 2,200 ft Visibility 10+ mi Precip 0.04 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.