Las Vegas, NV → Seattle, WA flight delays
LAS → SEA · all airlines · 496 flights · May 2026 · source: US BTS
This route is delayed
20%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
80%
Delayed 3h+
0.6%
Cancelled
0.8%
Avg when late
+49m
Best & worst day to fly
Most on-time
Saturday
delayed 11%
Worst
Monday
delayed 24%
Which airline is most punctual on LAS → SEA?
Deltadelayed 14%
Alaskadelayed 17%
Southwestdelayed 34%
Frequently asked
How often is the Las Vegas, NV to Seattle, WA flight delayed?
About 20% of LAS → SEA flights arrive late (15+ minutes), by an average of 49 minutes when they do, based on 496 flights in May 2026.
Which airline is most punctual on LAS → SEA?
Delta, delayed 14% of the time — the best of the 3 airlines flying this route.
What is the best day to fly LAS → SEA?
Saturday is the most on-time (delayed 11%), while Monday is the worst (delayed 24%).
Airport overviews