Schedule: a typical summer Saturday (the flights of Jul 25, 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
Saturday, October 3 Today
B6 303 · JFK → SJU
departs 8:29 PM ET · arrives 12:42 AM AT
Forecast issued Sat 2:00 AM ET · 18h before departure
Watch this flight
Other days
Today
Sun 10/4 58%
Mon 10/5 39%
Fri 10/9 34%
Odds over time
Arrive at SJU more than 15 minutes late?
42%
chance · ±10 pts
+7 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
42%
Leave 15+ late
48%
Arrive 1h+ late
14%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.9d
2d
1d
Now
12h
6h
Departs
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 34% · changed +7 pts in 24h
+7 pts
42%
Yes 42%
No 58%
Leave JFK more than 15 minutes late?
Calm-weather odds: 42% · changed +0 pts in 24h
+0 pts
48%
Yes 48%
No 52%
Arrive at SJU more than an hour late?
Calm-weather odds: 10% · 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
57%
15–30 min late
14%
30 min–1 hour late
14%
1–2 hours late
9%
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
↑
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
↓
Saturdays in October are usually quieter than average
Weather at each end
JFK (origin)
Gusts 15 kt Ceiling 5,500 ft Visibility 10+ mi Precip none
SJU (destination)
Gusts 14 kt Ceiling 4,200 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.