About 1 in 3 B6 1388 flights from Los Angeles arrived 15+ minutes late, diverted or cancelled over the past year (33%); 2.4% were cancelled. The typical flight landed 2 minutes early.
B6 1388: LAX → BOS
Scheduled to leave Los Angeles at 10:59 a.m. local time. Over the past year it arrived on time 67% of the time (164 flights), better than other B6 flights on the route at that hour (64%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 26 | 65% |
| Tuesday | 21 | 67% |
| Wednesday | 22 | 77% |
| Thursday | 26 | 46% |
| Friday | 26 | 81% |
| Saturday | 18 | — |
| Sunday | 25 | 68% |
Why it was late
All flights LAX → BOS · Connecting off B6 1388? Check the risk
Questions
How often is B6 1388 from LAX to BOS late?
JetBlue 1388 from Los Angeles, CA to Boston, MA arrived 15 or more minutes late, was diverted or was cancelled on 33% of 164 scheduled flights between September 2025 and August 2026. 2.4% 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.