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Cheap flights from Houston George Bush Intercntl. to Washington Dulles

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Compare Houston George Bush Intercntl. to Washington Dulles flight deals

Find the cheapest month or even day of the year to fly to Washington Dulles

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Flight deals from Houston George Bush Intercntl. to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Houston George Bush Intercntl. to Washington Dulles? Find the lowest prices on one-way and return tickets right here.
Washington D.C..P9,374 per passenger.Departing Sat, 17 May, returning Tue, 20 May.Return flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Sat, 17 May, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 20 May, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P9,374, select.
Washington D.C..P9,450 per passenger.Departing Tue, 15 Apr, returning Tue, 22 Apr.Return flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Tue, 15 Apr, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 22 Apr, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P9,450, select.
Washington D.C..P10,318 per passenger.Departing Mon, 24 Mar, returning Sat, 29 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Mon, 24 Mar, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Washington Dulles on Sat, 29 Mar, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P10,318, select.
Washington D.C..P10,536 per passenger.Departing Tue, 25 Mar, returning Sat, 29 Mar.Return flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Tue, 25 Mar, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sat, 29 Mar, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P10,536, select.
Washington D.C..P12,422 per passenger.Departing Sun, 30 Mar, returning Tue, 1 Apr.Return flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Sun, 30 Mar, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 1 Apr, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P12,422, select.
Washington D.C..P12,422 per passenger.Departing Wed, 21 May, returning Sun, 1 Jun.Return flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Wed, 21 May, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sun, 1 Jun, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P12,422, select.
Washington D.C..P14,048 per passenger.Departing Thu, 12 Jun, returning Mon, 16 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Thu, 12 Jun, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Washington Dulles on Mon, 16 Jun, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P14,048, select.
Washington D.C..P15,470 per passenger.Departing Sat, 28 Jun, returning Fri, 4 Jul.Return flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Sat, 28 Jun, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Fri, 4 Jul, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From P15,470, select.

Find the cheapest month to fly from Houston George Bush Intercntl. to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston George Bush Intercntl. to Washington Dulles flights are currently cheapest in May.
Feb
from P42,841
Mar
from P10,318
Apr
from P9,450
May
from P9,374
Jun
from P14,048
Jul
from P15,470
Aug
from P20,096
Sep
from P20,096
Oct
from P17,222
Nov
from P15,488
Dec
from P15,470
Jan
Find prices

Direct flights from Houston George Bush Intercntl. to Washington Dulles

Houston George Bush Intercntl. to Washington Dulles: Alternative routes

Compare routes from Houston George Bush Intercntl. to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Houston to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundP9,374
Cheapest month to flyMay
Average flight time3 hrs, 6 mins
Most popular airlineUnited
Average flights per week140

Finding cheap flights from Houston George Bush Intercntl. to Washington Dulles: Frequently asked questions

The best price we found for a return flight from Houston George Bush Intercntl. to Washington Dulles is P9,374. 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 6 minutes is the average flight time from Houston George Bush Intercntl. to Washington Dulles.
United, Air New Zealand and Avianca fly direct from Houston George Bush Intercntl. to Washington Dulles.
As of February 2025, there are 140 flights per week flying from Houston George Bush Intercntl. to Washington Dulles.
The cheapest month to fly from Houston George Bush Intercntl. to Washington Dulles is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Houston George Bush Intercntl. Airport to Washington Dulles Airport on Saturday, 17 May 2025.
Yes – the average flight time is 3 hours and 6 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 Washington Dulles 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 Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Washington Dulles.

Flying from George Bush Intercontinental Airport (IAH) to Washington Dulles International Airport (IAD): what you need to know

  • The average length of a direct flight from George Bush Intercontinental Airport to Washington Dulles International Airport is 3 hours 3 minutes. Washington DC's timezone is UTC-4, making Washington DC 1 hour ahead of Houston.

  • Choose from 149 weekly flights from George Bush Intercontinental Airport to Washington Dulles International Airport. The 06:00 departure with United Airlines is the earliest you can take from IAH to IAD. United Airlines operates the latest service of the day at 22:30 if you'd rather not get up at the crack of dawn.

  • Flying during a peak time like July? Popular periods (like summer, Thanksgiving, Christmas and spring break) can easily add another hour at security. Be extra safe and arrive up to four hours before an international flight and two hours before domestic departures.

  • United Airlines has direct flights from George Bush Intercontinental Airport to Washington Dulles International Airport. Book with this popular airline, then get ready to take in the sights in Washington DC — and maybe even more of United States if time allows.

  • If you'd like to break up your flight from George Bush Intercontinental Airport to Washington Dulles International Airport, think about adding a stopover. Simply deselect 'Direct flights only' and find a destination that appeals to you. The top stopovers on the IAH - IAD route are:

    • Charlotte Douglas International Airport

    • Louisville International Airport-Standiford Field

    • Hartsfield-Jackson Atlanta International Airport

How to find the cheapest flights from George Bush Intercontinental Airport (IAH) to Washington Dulles International Airport (IAD)

  • P4,692 is the lowest price for a one-way ticket from George Bush Intercontinental Airport to Washington Dulles International Airport. Return flights start from P9,374. These fares may change based on demand.

  • Book 9 months before you want to travel. After looking at the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from IAH to IAD.

  • Organise your trip for May. That's the cheapest month for tickets from George Bush Intercontinental Airport to Washington Dulles International Airport. If you're flexible on when you fly, try out the 'Whole month' tool to see the lowest price across each month.

  • Finding a cheap ticket from IAH to IAD couldn't be easier with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Tailor your trip using filters. Choose your ideal arrival and departure times, total journey duration and airlines. You can also sort results by 'Cheapest,' 'Fastest' or 'Best' flights from George Bush Intercontinental Airport to Washington Dulles International Airport.

Handy information about George Bush Intercontinental Airport (IAH)

Arriving at Washington Dulles International Airport (IAD)

Getting from Washington Dulles International Airport (IAD) to central Washington DC

  • Washington Dulles International Airport to the centre of Washington DC is around 51 minutes in a car. It's approximately 56 kilometres away. See what options are available, such as car rentals, cabs or ride-sharing.

  • If you're travelling on public transport, expect a journey of about 3 hours and 26 minutes.

When to fly to Washington Dulles International Airport (IAD)

  • July is the busiest month for flights from George Bush Intercontinental Airport to Washington Dulles International Airport. To steer clear of the crowds, travel to Washington DC in February.

  • Book your flight from George Bush Intercontinental Airport to Washington Dulles International Airport for July if you want to visit Washington DC during its warmest month. Expect temperatures of between 19 ºC and 33 ºC.

  • If you like travelling in cooler conditions, search for a cheap ticket from IAH to IAD in January. Average temperatures are between -6 ºC and 10 ºC then.

More about Washington DC

  • As soon as you've locked in your flights from IAH to IAD, you'll need to find a place to stay in Washington DC. Make one of these options your base for exploring this exciting city:

  • There are so many things to explore in this city it can be hard to figure out where to start. White House Historical Association, The White House and National Mall are highlights which should feature on any well-planned Washington DC itinerary.

Complete your Washington DC trip with hotels and a car rental

  • Once you've secured your cheap ticket to Washington Dulles International Airport, discover our low prices and exclusive offers on hotels. You can also compare a range of car rental companies in one go to find the best car rental price for your Washington DC getaway.

More travel options

Car hire in United StatesCar hire in Near Northeast/H Street CorridorBest car hire at Washington Dulles Airport
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Plan the rest of your trip from Houston to Washington D.C.

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