Boston, MA → Los Angeles, CA flight delays
BOS → LAX · all airlines · 398 flights · May 2026 · source: US BTS
This route is delayed
16%of the time, by +42 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
84%
Delayed 3h+
0.3%
Cancelled
0%
Avg when late
+42m
Best & worst day to fly
Most on-time
Saturday
delayed 9%
Worst
Monday
delayed 34%
Which airline is most punctual on BOS → LAX?
Americandelayed 15%
JetBluedelayed 15%
Deltadelayed 16%
Uniteddelayed 18%
Frequently asked
How often is the Boston, MA to Los Angeles, CA flight delayed?
About 16% of BOS → LAX flights arrive late (15+ minutes), by an average of 42 minutes when they do, based on 398 flights in May 2026.
Which airline is most punctual on BOS → LAX?
American, delayed 15% of the time — the best of the 4 airlines flying this route.
What is the best day to fly BOS → LAX?
Saturday is the most on-time (delayed 9%), while Monday is the worst (delayed 34%).
Airport overviews