San Antonio, TX → Houston, TX flight delays
SAT → IAH · all airlines · 216 flights · April 2026 · source: US BTS
This route is delayed
19%of the time, by +63 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+
0.9%
Cancelled
0%
Avg when late
+63m
Best & worst day to fly
Most on-time
Tuesday
delayed 7%
Worst
Sunday
delayed 34%
Frequently asked
How often is the San Antonio, TX to Houston, TX flight delayed?
About 19% of SAT → IAH flights arrive late (15+ minutes), by an average of 63 minutes when they do, based on 216 flights in April 2026.
What is the best day to fly SAT → IAH?
Tuesday is the most on-time (delayed 7%), while Sunday is the worst (delayed 34%).
Airport overviews