Atlanta, GA → Seattle, WA flight delays
ATL → SEA · all airlines · 252 flights · April 2026 · source: US BTS
This route is delayed
12%of the time, by +67 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+
0.4%
Cancelled
0.4%
Avg when late
+67m
Best & worst day to fly
Most on-time
Sunday
delayed 6%
Worst
Tuesday
delayed 26%
Which airline is most punctual on ATL → SEA?
Deltadelayed 12%
Alaskadelayed 12%
Frequently asked
How often is the Atlanta, GA to Seattle, WA flight delayed?
About 12% of ATL → SEA flights arrive late (15+ minutes), by an average of 67 minutes when they do, based on 252 flights in April 2026.
Which airline is most punctual on ATL → SEA?
Delta, delayed 12% of the time — the best of the 2 airlines flying this route.
What is the best day to fly ATL → SEA?
Sunday is the most on-time (delayed 6%), while Tuesday is the worst (delayed 26%).
Airport overviews