Atlanta, GA → Houston, TX flight delays
ATL → IAH · all airlines · 469 flights · April 2026 · source: US BTS
This route is delayed
19%of the time, by +56 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
81%
Delayed 3h+
0.4%
Cancelled
0.4%
Avg when late
+56m
Best & worst day to fly
Most on-time
Wednesday
delayed 10%
Worst
Saturday
delayed 31%
Which airline is most punctual on ATL → IAH?
Uniteddelayed 12%
Deltadelayed 17%
Frontierdelayed 24%
Spiritdelayed 58%
Frequently asked
How often is the Atlanta, GA to Houston, TX flight delayed?
About 19% of ATL → IAH flights arrive late (15+ minutes), by an average of 56 minutes when they do, based on 469 flights in April 2026.
Which airline is most punctual on ATL → IAH?
United, delayed 12% of the time — the best of the 4 airlines flying this route.
What is the best day to fly ATL → IAH?
Wednesday is the most on-time (delayed 10%), while Saturday is the worst (delayed 31%).
Airport overviews