San Francisco, CA → Houston, TX flight delays
SFO → IAH · all airlines · 300 flights · April 2026 · source: US BTS
This route is delayed
12%of the time, by +44 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+
0.3%
Cancelled
0%
Avg when late
+44m
Best & worst day to fly
Most on-time
Tuesday
delayed 8%
Worst
Monday
delayed 18%
Frequently asked
How often is the San Francisco, CA to Houston, TX flight delayed?
About 12% of SFO → IAH flights arrive late (15+ minutes), by an average of 44 minutes when they do, based on 300 flights in April 2026.
What is the best day to fly SFO → IAH?
Tuesday is the most on-time (delayed 8%), while Monday is the worst (delayed 18%).
Airport overviews