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 2421
SCHEDULED · TYPICAL SCHEDULE
Tuesday, September 29 Yesterday
B6 2421 · BOS → PBI
departs 9:35 PM ET · arrives 12:53 AM ET
Forecast issued Tue 10:00 PM ET · 0h before departure
Watch this flight
Other days
Tue 9/29
Today 48%
Thu 10/1 42%
Fri 10/2 41%
Sat 10/3 28%
Sun 10/4 40%
Mon 10/5 39%
Odds over time
Arrive at PBI more than 15 minutes late?
58%
chance · ±0 pts
+15 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
Arrive 15+ late
58%
Leave 15+ late
61%
Arrive 1h+ late
33%
Cancelled
2%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
20%
40%
60%
80%
2.8d
2d
1d
12h
6h
Departs
Lands
Arrive at PBI more than 15 minutes late?
Calm-weather odds: 53% · changed +15 pts in 24h
+15 pts
58%
Yes 58%
No 42%
Leave BOS more than 15 minutes late?
Calm-weather odds: 59% · changed +14 pts in 24h
+14 pts
61%
Yes 61%
No 39%
Arrive at PBI more than an hour late?
Calm-weather odds: 31% · changed +13 pts in 24h
+13 pts
33%
Yes 33%
No 67%
Cancelled?
Calm-weather odds: 1% · changed +1 pt in 24h
+1 pt
2%
Yes 2%
No 98%
How late will it get to PBI?
On time or early
41%
15–30 min late
9%
30 min–1 hour late
15%
1–2 hours late
22%
Over 2 hours late
10%
Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Cloud base down to 600 ft, visibility down to 1.5 mi forecast at BOS that day
↑
B6's recent on-time record
↑
9pm departures from BOS are often late
↓
Tuesdays in September are usually quieter than average
Weather at each end
BOS (origin)
Gusts 11 kt Ceiling 600 ft Visibility 1.5 mi Precip 0.03 in
PBI (destination)
Gusts 17 kt Ceiling 3,000 ft Visibility 5 mi Precip 0.44 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.