ON TIMEBOARD

B6 378 on time

JetBlue 378: San Francisco to Fort Lauderdale at 11:59 p.m. (past 12 months)

On time
74%
363 flights · likely 69–78%
Cancelled
0.0%
of scheduled flights
Typical arrival
−1 min
median vs schedule
When late
+70 min
average delay
Similar flights
77%
B6, same route & hour

About 1 in 4 B6 378 flights from San Francisco arrived 15+ minutes late, diverted or cancelled over the past year (26%); 0.0% were cancelled. The typical flight landed 1 minutes early.

B6 378: SFO → FLL

Scheduled to leave San Francisco at 11:59 p.m. local time. Over the past year it arrived on time 74% of the time (363 flights), worse than other B6 flights on the route at that hour (77%). Last seen in the data Aug 31, 2026.

Usually JetBlue's last flight of the day from San Francisco to Fort Lauderdale (56% of days). JetBlue's last SFO–FLL flight was cancelled 0.0% of the time, against 0.3% for its earlier ones. If it's cancelled, the next JetBlue flight is usually around 11:00 a.m. the next morning.

Month by month

40%70%100%Sep 2025: 80% on time (30 flights)80SepOct 2025: 81% on time (31 flights)81OctNov 2025: 79% on time (28 flights)79NovDec 2025: 77% on time (31 flights)77DecJan 2026: 81% on time (31 flights)81JanFeb 2026: 71% on time (28 flights)71FebMar 2026: 48% on time (31 flights)48MarApr 2026: 87% on time (30 flights)87AprMay 2026: 74% on time (31 flights)74MayJun 2026: 83% on time (30 flights)83JunJul 2026: 65% on time (31 flights)65JulAug 2026: 61% on time (31 flights)61Aug

By day of week

DayFlightsOn time
Monday5375%
Tuesday5275%
Wednesday5175%
Thursday5176%
Friday5269%
Saturday5275%
Sunday5271%

Why it was late

Late inbound plane 46%Airline (crew, maintenance, ops) 37%Air traffic & airport (NAS) 17%

All flights SFO → FLL · Connecting off B6 378? Check the risk

Questions

How often is B6 378 from SFO to FLL late?

JetBlue 378 from San Francisco, CA to Fort Lauderdale, FL arrived 15 or more minutes late, was diverted or was cancelled on 26% of 363 scheduled flights between September 2025 and August 2026. 0.0% 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.