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 391
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Tomorrow
B6 391 · BOS → TPA
departs 4:19 PM ET · arrives 7:38 PM ET
Forecast issued Tue 7:00 PM ET · 21h before departure
Watch this flight
Other days
Today 37%
Wed 9/30
Thu 10/1 41%
Fri 10/2 38%
Sat 10/3 35%
Sun 10/4 40%
Mon 10/5 36%
Odds over time
Arrive at TPA more than 15 minutes late?
47%
chance · ±3 pts
+13 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
47%
Leave 15+ late
47%
Arrive 1h+ late
19%
Cancelled
1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.8d
2d
Now
12h
6h
Departs
Lands
Arrive at TPA more than 15 minutes late?
Calm-weather odds: 24% · changed +13 pts in 24h
+13 pts
47%
Yes 47%
No 53%
Leave BOS more than 15 minutes late?
Calm-weather odds: 28% · changed +13 pts in 24h
+13 pts
47%
Yes 47%
No 53%
Arrive at TPA more than an hour late?
Calm-weather odds: 9% · changed +4 pts in 24h
+4 pts
19%
Yes 19%
No 81%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
1%
Yes 1%
No 99%
How late will it get to TPA?
On time or early
52%
15–30 min late
9%
30 min–1 hour late
18%
1–2 hours late
14%
Over 2 hours late
5%
Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Thunderstorms forecast at TPA that day
↑
B6's recent on-time record
↑
BOS is prone to delays
↓
Wednesdays in September are usually quieter than average
↓
Mostly benign weather forecast at BOS
Weather at each end
BOS (origin)
Gusts 8 kt Ceiling 1,800 ft Visibility 7 mi Precip none
TPA (destination)
Gusts 10 kt Ceiling 8,000 ft 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.