Los Angeles, CA → Seattle, WA flight delays
LAX → SEA · all airlines · 613 flights · April 2026 · source: US BTS
This route is delayed
12%of the time, by +49 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
88%
Delayed 3h+
0.2%
Cancelled
0.8%
Avg when late
+49m
Best & worst day to fly
Most on-time
Saturday
delayed 3%
Worst
Thursday
delayed 19%
Which airline is most punctual on LAX → SEA?
Deltadelayed 11%
SkyWestdelayed 12%
Alaskadelayed 12%
Frontierdelayed 24%
Frequently asked
How often is the Los Angeles, CA to Seattle, WA flight delayed?
About 12% of LAX → SEA flights arrive late (15+ minutes), by an average of 49 minutes when they do, based on 613 flights in April 2026.
Which airline is most punctual on LAX → SEA?
Delta, delayed 11% of the time — the best of the 4 airlines flying this route.
What is the best day to fly LAX → SEA?
Saturday is the most on-time (delayed 3%), while Thursday is the worst (delayed 19%).
Airport overviews