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Cheap flights from Washington Dulles to Houston

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Compare Washington Dulles to Houston flight deals

Find the cheapest month or even day of the year to fly to Houston

Book the best Houston fare with no extra fees

Flight deals from Washington Dulles to Houston

Looking for a cheap last-minute deal or the best round-trip flight from Washington Dulles to Houston? Find the lowest prices on one-way and round-trip tickets right here.
Houston.C$278 per passenger.Departing Fri, May 9, returning Mon, May 12.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Washington Dulles on Fri, May 9, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Mon, May 12, arriving in Washington Dulles.Price includes taxes and charges.From C$278, select.
Houston.C$317 per passenger.Departing Thu, Apr 24, returning Sun, May 11.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Washington Dulles on Thu, Apr 24, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Sun, May 11, arriving in Washington Dulles.Price includes taxes and charges.From C$317, select.
Houston.C$319 per passenger.Departing Thu, Apr 24, returning Sun, Apr 27.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Washington Dulles on Thu, Apr 24, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Sun, Apr 27, arriving in Washington Dulles.Price includes taxes and charges.From C$319, select.
Houston.C$361 per passenger.Departing Wed, Jun 4, returning Fri, Jun 6.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Washington Dulles on Wed, Jun 4, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Fri, Jun 6, arriving in Washington Dulles.Price includes taxes and charges.From C$361, select.
Houston.C$366 per passenger.Departing Thu, May 29, returning Tue, Jun 3.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Washington Dulles on Thu, May 29, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departing from Houston George Bush Intercntl. on Tue, Jun 3, arriving in Washington Dulles.Price includes taxes and charges.From C$366, select.
Houston.C$374 per passenger.Departing Sat, Sep 6, returning Tue, Sep 9.Round-trip flight with United.Outbound direct flight with United departing from Washington Dulles on Sat, Sep 6, arriving in Houston George Bush Intercntl..Inbound direct flight with United departing from Houston George Bush Intercntl. on Tue, Sep 9, arriving in Washington Dulles.Price includes taxes and charges.From C$374, select.
Houston.C$374 per passenger.Departing Sun, Aug 3, returning Thu, Aug 7.Round-trip flight with United.Outbound direct flight with United departing from Washington Dulles on Sun, Aug 3, arriving in Houston George Bush Intercntl..Inbound direct flight with United departing from Houston George Bush Intercntl. on Thu, Aug 7, arriving in Washington Dulles.Price includes taxes and charges.From C$374, select.
Houston.C$374 per passenger.Departing Sat, May 3, returning Sun, May 4.Round-trip flight with United.Outbound direct flight with United departing from Washington Dulles on Sat, May 3, arriving in Houston George Bush Intercntl..Inbound direct flight with United departing from Houston George Bush Intercntl. on Sun, May 4, arriving in Washington Dulles.Price includes taxes and charges.From C$374, select.

Find the cheapest month to fly from Washington Dulles to Houston

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Houston flights are currently cheapest in May.
Apr
from C$319
May
from C$278
Jun
from C$361
Jul
from C$379
Aug
from C$374
Sep
from C$374
Oct
from C$374
Nov
from C$379
Dec
from C$400
Jan
Find prices
Feb
Find prices
Mar
Find prices

Direct flights from Washington Dulles to Houston

Alternative Washington Dulles to Houston routes

Looking for the cheapest, fastest or easiest route from Washington Dulles to Houston? You could fly into the following airports instead.

Washington, D.C. to Houston: Flight information

The things to know before you go.
Cheapest flight foundC$278
Cheapest month to flyMay
Average flight time3 hrs, 20 mins
Most popular airlineUnited
Average flights per week186

Finding cheap flights from Washington Dulles to Houston: Frequently asked questions

There are 4 airports in Houston: Houston Hobby, Houston George Bush Intercntl., Houston Ellington Field, and Galveston.
The best price we found for a round-trip flight from Washington Dulles to Houston is C$278. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 20 minutes is the average flight time from Washington Dulles to Houston.
United, Air New Zealand and Avianca fly direct from Washington Dulles to Houston.
There are 93 flights per week flying from Washington Dulles to Houston, as of April 2025.
The cheapest month to fly from Washington Dulles to Houston is usually April 2025.
If you're flying from Washington Dulles Airport, the cheapest airport near Houston is Houston George Bush Intercntl. – which is 25.0 km away from the center of Houston. We've found flights to this airport from C$278.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Houston on Friday, May 9, 2025.
Yes – the average flight time is 3 hours and 20 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Houston but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Houston is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 20°C. August is typically the warmest month in Houston, when it usually averages around 34°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 6°C. The rainiest month is June.
Currently, Frontier Airlines and United offer the cheapest flight tickets to Houston.

How to find cheap flights to Houston from Washington Dulles

Looking for cheap tickets from Washington Dulles to Houston? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit "search." From Delta Air Lines to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Washington Dulles to Houston. And with us, there are no hidden fees – what you see is what you pay.
  • Compare flight deals to Houston from Washington Dulles from over 1,000 providers. Then choose the cheapest plane tickets or fastest journeys.
  • Flex your dates to find the best Washington Dulles–Houston ticket prices. If you're flexible when it comes to your travel dates, use Skyscanner's "Whole month" tool to find the cheapest month, and even day to fly to Houston from Washington Dulles.
  • Set up a Price Alert. You can easily track the fare of your cheap Washington Dulles–Houston flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between Washington Dulles and Houston? Make sure to tick "Direct flights only" when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business Class flights from Washington Dulles and Houston. We scour the Internet for the best Business, Premium Economy and First Class flight fares to Houston, too. Check the difference in price as you search – you might just stumble on a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Washington Dulles to Houston flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save the next time you travel.

    • Combine your flight to Houston from Washington Dulles with hotels and car rental

    Once you've secured your cheap flight ticket from Washington Dulles to Houston, discover the best prices and exclusive rates for hotels in Houston or nearby. You can also compare hundreds of car rental companies at once so you get the best car rental price for your trip.


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Plan the rest of your trip from Washington, D.C. to Houston

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.