Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
JETBLUE · FLIGHT B6 2421
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
B6 2421 · BOS → PBI
departs 7:35 PM ET · arrives 10:56 PM ET
Forecast issued Wed 11:00 AM ET · 9h before departure
Watch this flight
Other days
Today
Thu 10/1 48%
Fri 10/2 50%
Sat 10/3 28%
Sun 10/4 40%
Mon 10/5 39%
Tue 10/6 32%
Odds over time
Arrive at PBI more than 15 minutes late?
54%
chance · ±0 pts
+15 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
54%
Leave 15+ late
58%
Arrive 1h+ late
24%
Cancelled
9%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.9d
2d
1d
12h
Now
6h
Departs
Lands
Arrive at PBI more than 15 minutes late?
Calm-weather odds: 44% · changed +15 pts in 24h
+15 pts
54%
Yes 54%
No 46%
Leave BOS more than 15 minutes late?
Calm-weather odds: 44% · changed +16 pts in 24h
+16 pts
58%
Yes 58%
No 42%
Arrive at PBI more than an hour late?
Calm-weather odds: 19% · changed +10 pts in 24h
+10 pts
24%
Yes 24%
No 76%
Cancelled?
Calm-weather odds: <1% · changed +7 pts in 24h
+7 pts
9%
Yes 9%
No 91%
How late will it get to PBI?
On time or early
42%
15–30 min late
18%
30 min–1 hour late
9%
1–2 hours late
16%
Over 2 hours late
5%
Cancelled
9%
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 39% of the time recently
↑
7pm departures from BOS are often late
↓
Wednesdays in September are usually quieter than average
↓
Other factors
Weather at each end
BOS (origin)
Gusts 8 kt Ceiling 800 ft Visibility 2 mi Precip 0.02 in
PBI (destination)
Gusts 12 kt Ceiling 7,000 ft Visibility 8 mi Precip 0.13 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.