Washington to Houston flights
The cheapest round trip we found from Washington to Houston is $110 (Dec 4 – 7, 1 stop).
WAS to HOU · Round trip · Economy · Prices per person in USD · Price found (2 days ago)
Cheapest found
Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| November 2026 | $250 |
| December 2026 | $110 (cheapest month) |
Cheapest dates in the next 4 months
Round trip, per person-
Dec 4 – 7 3 nights · leave Fri$110$110 Book
Frontier Airlines 1 stop · 4h 35m -
Dec 2 – 6 4 nights · leave Wed$114$114 Book
Frontier Airlines 1 stop · 4h 32m
-
Nov 4 – 8 4 nights · leave Wed$250$250 Book
Frontier Airlines 1 stop · 5h 39m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
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Plan the rest of your trip
Houston · Dec 4 – 7Partner links: we may earn a commission if you book, at no extra cost to you.
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Washington to Houston: questions
How much does a flight from Washington to Houston cost?
The cheapest round trip we have found right now is $110, leaving December 4 and returning December 7. Prices are per person, economy, in USD.
Which airports do Washington to Houston flights use?
Washington airports include Washington Dulles International (IAD) and Ronald Reagan National (DCA). Houston airports include George Bush Intercontinental (IAH) and William P. Hobby (HOU). The prices on this page cover every airport in both cities (WAS and HOU are the city codes).
About this route
We track round-trip economy fares from Washington (United States) to Houston (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $110, departing December 4 and returning December 7. The cheapest month to fly in our data is December, from $110. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.