Skip to main content
Beginning of main content

DCA (Washington) to IAH (Houston) Flights $164.75

Search over 321,000 hotels worldwide and 400 airlines worldwide.
Secure incredible value with Expedia's Price Guarantee.
No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheap DCA to IAH Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.



Interesting Facts About Flights from Washington to Houston (DCA to IAH)

Question : Should you be aware of any airlines that have a reputation of delayed arrivals for this route?
Answer : If you decide to book your flight with ExpressJet, keep an eye on your departure time. 67% of flights from Ronald Reagan National Airport (DCA) to George Bush Intercontinental Airport (IAH) are late.

Question : On a daily basis, how many different flight times are available from Ronald Reagan National Airport (DCA) to George Bush Intercontinental Airport (IAH)?
Answer : Each day is different, but on average, you can expect to see seven available departure times. Compared to the average route departing the United States with five flight times, you'll have more choices than most.

Question : What is the cheapest round-trip ticket you can get to Houston?
Answer : Flight prices are hitting highs of $1,142 over the next three months when flying to IAH from DCA. Check out United Airlines, as they have been booking customers at just $186.

Question : If having the most departure times is important to you, is there a particular day that offers the most options?
Answer : With eight total flight time options, Monday provides the most flexibility from DCA to IAH. The day with the fewest number of times is Saturday with six options.

Question : How often is the Ronald Reagan National Airport (DCA) to George Bush Intercontinental Airport (IAH) route delayed?
Answer : Flights from DCA to IAH are on time 77% of the time, ranking in the 55th percentile worldwide. If a flight is delayed, though, expect an average of over half an hour added to your flight time.

Question : If speed is all that matters, how can you get from DCA to IAH as quickly as possible?
Answer : United Airlines can get you there in three hours and 34 minutes. For example, if you were to leave Washington at 7:59 AM EDT, you would arrive in Houston at 10:33 AM CDT (remember, there is a time change of one hour).

Question : Is price more important than specific travel days for you?
Answer : For the month of August, Saturday is your cheapest day to fly. Flexibility is paramount when booking travel plans in order to keep travel costs down.