Schedule: a typical summer Wednesday (the flights of Jul 29, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
JETBLUE · FLIGHT B6 1903
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30
B6 1903 · RDU → SJU
departs 7:56 PM ET · arrives 11:34 PM AT
Forecast issued Wed 10:00 PM ET · 2h after departure
Watch this flight
Other days
Wed 9/30
Today 37%
Mon 10/5 28%
Fri 10/9 29%
Odds over time
Arrive at SJU more than 15 minutes late?
22%
chance · ±2 pts
−8 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
22%
Leave 15+ late
35%
Arrive 1h+ late
9%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
10%
20%
30%
40%
2.7d
2d
1d
12h
6h
Departs
Now
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 20% · changed −8 pts in 24h
−8 pts
22%
Yes 22%
No 78%
Leave RDU more than 15 minutes late?
Calm-weather odds: 34% · changed −2 pts in 24h
−2 pts
35%
Yes 35%
No 65%
Arrive at SJU more than an hour late?
Calm-weather odds: 9% · changed −2 pts in 24h
−2 pts
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
77%
15–30 min late
<1%
30 min–1 hour late
13%
1–2 hours late
6%
Over 2 hours late
3%
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
↑
Mostly benign weather forecast at SJU
↑
7pm departures from RDU are often late
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at RDU
Weather at each end
RDU (origin)
Gusts 6 kt Ceiling none (clear) Visibility 4 mi Precip none
SJU (destination)
Gusts 24 kt Ceiling none (clear) Visibility 10+ mi Precip 0.07 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.