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 403
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Yesterday
B6 403 · JFK → SJU
departs 5:01 AM ET · arrives 8:47 AM AT
Forecast issued Tue 10:00 PM ET · 17h after departure
Watch this flight
Other days
Tue 9/29
Today 9%
Thu 10/1 10%
Fri 10/2 11%
Sat 10/3 13%
Sun 10/4 15%
Mon 10/5 12%
Tue 10/6 11%
Odds over time
Arrive at SJU more than 15 minutes late?
9%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
9%
Leave 15+ late
10%
Arrive 1h+ late
3%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 9% · changed −1 pt in 24h
−1 pt
9%
Yes 9%
No 91%
Leave JFK more than 15 minutes late?
Calm-weather odds: 10% · changed +1 pt in 24h
+1 pt
10%
Yes 10%
No 90%
Arrive at SJU more than an hour late?
Calm-weather odds: 3% · changed +0 pts in 24h
+0 pts
3%
Yes 3%
No 97%
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
90%
15–30 min late
1%
30 min–1 hour late
4%
1–2 hours late
2%
Over 2 hours late
1%
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
↑
SJU is prone to delays
↑
Other factors
↓
Early flights usually leave on time
↓
5am departures from JFK are usually not late
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.