ON TIMEBOARD

B6 591 on time

JetBlue 591: Boston to Tampa at 3:45 p.m. (past 12 months)

On time
56%
294 flights · likely 50–61%
Cancelled
5.8%
of scheduled flights
Typical arrival
+6 min
median vs schedule
When late
+71 min
average delay
Similar flights
62%
B6, same route & hour

About 1 in 2 B6 591 flights from Boston arrived 15+ minutes late, diverted or cancelled over the past year (44%); 5.8% were cancelled. The typical flight landed 6 minutes late.

B6 591: BOS → TPA

Scheduled to leave Boston at 3:45 p.m. local time. Over the past year it arrived on time 56% of the time (294 flights), worse than other B6 flights on the route at that hour (62%). Last seen in the data Aug 31, 2026.

Usually JetBlue's last flight of the day from Boston to Tampa (59% of days). JetBlue's last BOS–TPA flight was cancelled 5.2% of the time, against 3.5% for its earlier ones. If it's cancelled, the next JetBlue flight is usually around 6:25 a.m. the next morning.

Month by month

20%60%100%Sep 2025: 64% on time (28 flights)64SepOct 2025: 60% on time (25 flights)60OctNov 2025: too few flights (11 flights)NovDec 2025: 73% on time (15 flights)73DecJan 2026: 52% on time (27 flights)52JanFeb 2026: 64% on time (22 flights)64FebMar 2026: 70% on time (20 flights)70MarApr 2026: 78% on time (27 flights)78AprMay 2026: 52% on time (31 flights)52MayJun 2026: 50% on time (26 flights)50JunJul 2026: 26% on time (31 flights)26JulAug 2026: 42% on time (31 flights)42Aug

By day of week

DayFlightsOn time
Monday4558%
Tuesday3853%
Wednesday3967%
Thursday4549%
Friday4553%
Saturday3861%
Sunday4452%

Why it was late

Late inbound plane 62%Airline (crew, maintenance, ops) 24%Air traffic & airport (NAS) 13%

All flights BOS → TPA · Connecting off B6 591? Check the risk

Questions

How often is B6 591 from BOS to TPA late?

JetBlue 591 from Boston, MA to Tampa, FL arrived 15 or more minutes late, was diverted or was cancelled on 44% of 294 scheduled flights between September 2025 and August 2026. 5.8% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check JetBlue for today's flight. Method.