Seattle, WA → Salt Lake City, UT flight delays
SEA → SLC · all airlines · 314 flights · April 2026 · source: US BTS
This route is delayed
8%of the time, by +51 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
92%
Delayed 3h+
0%
Cancelled
0%
Avg when late
+51m
Best & worst day to fly
Most on-time
Tuesday
delayed 3%
Worst
Sunday
delayed 12%
Which airline is most punctual on SEA → SLC?
SkyWestdelayed 3%
Alaskadelayed 4%
Deltadelayed 10%
Frequently asked
How often is the Seattle, WA to Salt Lake City, UT flight delayed?
About 8% of SEA → SLC flights arrive late (15+ minutes), by an average of 51 minutes when they do, based on 314 flights in April 2026.
Which airline is most punctual on SEA → SLC?
SkyWest, delayed 3% of the time — the best of the 3 airlines flying this route.
What is the best day to fly SEA → SLC?
Tuesday is the most on-time (delayed 3%), while Sunday is the worst (delayed 12%).
Airport overviews