Houston, TX → Washington, DC flight delays
IAH → DCA · all airlines · 283 flights · April 2026 · source: US BTS
This route is delayed
20%of the time, by +62 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
80%
Delayed 3h+
1.1%
Cancelled
0%
Avg when late
+62m
Best & worst day to fly
Most on-time
Thursday
delayed 16%
Worst
Wednesday
delayed 24%
Which airline is most punctual on IAH → DCA?
Uniteddelayed 18%
PSAdelayed 25%
Frequently asked
How often is the Houston, TX to Washington, DC flight delayed?
About 20% of IAH → DCA flights arrive late (15+ minutes), by an average of 62 minutes when they do, based on 283 flights in April 2026.
Which airline is most punctual on IAH → DCA?
United, delayed 18% of the time — the best of the 2 airlines flying this route.
What is the best day to fly IAH → DCA?
Thursday is the most on-time (delayed 16%), while Wednesday is the worst (delayed 24%).
Airport overviews