Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
JETBLUE · FLIGHT B6 817
SCHEDULED · TYPICAL SCHEDULE
Thursday, October 1
B6 817 · BOS → JFK
departs 7:39 PM ET · arrives 9:00 PM ET
Forecast issued Tue 9:00 PM ET · 47h before departure
Watch this flight
Other days
Today 45%
Wed 9/30 35%
Thu 10/1
Fri 10/2 36%
Sat 10/3 33%
Sun 10/4 48%
Mon 10/5 40%
Odds over time
Arrive at JFK more than 15 minutes late?
37%
chance · ±8 pts
+1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
37%
Leave 15+ late
35%
Arrive 1h+ late
12%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
Now
1d
12h
6h
Departs
Lands
Arrive at JFK more than 15 minutes late?
Calm-weather odds: 24% · changed +1 pt in 24h
+1 pt
37%
Yes 37%
No 63%
Leave BOS more than 15 minutes late?
Calm-weather odds: 27% · changed +0 pts in 24h
+0 pts
35%
Yes 35%
No 65%
Arrive at JFK more than an hour late?
Calm-weather odds: 8% · changed +1 pt in 24h
+1 pt
12%
Yes 12%
No 88%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to JFK?
On time or early
62%
15–30 min late
14%
30 min–1 hour late
11%
1–2 hours late
8%
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
↑
Later flights pick up delays from earlier in the day
↑
This flight has been late 40% of the time recently
↑
7pm departures from BOS are often late
↓
Mostly benign weather forecast at JFK
↓
Mostly benign weather forecast at BOS
Weather at each end
BOS (origin)
Gusts 16 kt Ceiling none (clear) Visibility 3 mi Precip none
JFK (destination)
Gusts 12 kt Ceiling 8,000 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.