Sacramento, CA → Seattle, WA flight delays
SMF → SEA · all airlines · 369 flights · April 2026 · source: US BTS
This route is delayed
14%of the time, by +45 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
86%
Delayed 3h+
0.3%
Cancelled
0%
Avg when late
+45m
Best & worst day to fly
Most on-time
Saturday
delayed 5%
Worst
Thursday
delayed 28%
Which airline is most punctual on SMF → SEA?
SkyWestdelayed 12%
Southwestdelayed 15%
Alaskadelayed 17%
Frequently asked
How often is the Sacramento, CA to Seattle, WA flight delayed?
About 14% of SMF → SEA flights arrive late (15+ minutes), by an average of 45 minutes when they do, based on 369 flights in April 2026.
Which airline is most punctual on SMF → SEA?
SkyWest, delayed 12% of the time — the best of the 3 airlines flying this route.
What is the best day to fly SMF → SEA?
Saturday is the most on-time (delayed 5%), while Thursday is the worst (delayed 28%).
Airport overviews