Atlanta, GA → St. Louis, MO flight delays
ATL → STL · all airlines · 299 flights · April 2026 · source: US BTS
This route is delayed
16%of the time, by +43 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
84%
Delayed 3h+
0%
Cancelled
2%
Avg when late
+43m
Best & worst day to fly
Most on-time
Friday
delayed 5%
Worst
Monday
delayed 23%
Which airline is most punctual on ATL → STL?
Deltadelayed 14%
Southwestdelayed 17%
Frequently asked
How often is the Atlanta, GA to St. Louis, MO flight delayed?
About 16% of ATL → STL flights arrive late (15+ minutes), by an average of 43 minutes when they do, based on 299 flights in April 2026.
Which airline is most punctual on ATL → STL?
Delta, delayed 14% of the time — the best of the 2 airlines flying this route.
What is the best day to fly ATL → STL?
Friday is the most on-time (delayed 5%), while Monday is the worst (delayed 23%).
Airport overviews