Boston, MA → Los Angeles, CA flight delays
BOS → LAX · all airlines · 362 flights · April 2026 · source: US BTS
This route is delayed
21%of the time, by +60 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
79%
Delayed 3h+
0.6%
Cancelled
0.3%
Avg when late
+60m
Best & worst day to fly
Most on-time
Thursday
delayed 16%
Worst
Monday
delayed 29%
Which airline is most punctual on BOS → LAX?
Americandelayed 8%
Uniteddelayed 16%
JetBluedelayed 27%
Deltadelayed 30%
Frequently asked
How often is the Boston, MA to Los Angeles, CA flight delayed?
About 21% of BOS → LAX flights arrive late (15+ minutes), by an average of 60 minutes when they do, based on 362 flights in April 2026.
Which airline is most punctual on BOS → LAX?
American, delayed 8% of the time — the best of the 4 airlines flying this route.
What is the best day to fly BOS → LAX?
Thursday is the most on-time (delayed 16%), while Monday is the worst (delayed 29%).
Airport overviews