Cheap Flights from Houston George Bush Intercntl. to Washington Dulles

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..$244 per passenger.Departing Thu, 19 Mar, returning Tue, 24 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Thu, 19 Mar, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Washington Dulles on Tue, 24 Mar, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $244, select.

Washington D.C..$268 per passenger.Departing Sat, 16 May, returning Mon, 18 May.Return flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Sat, 16 May, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 18 May, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $268, select.

Washington D.C..$268 per passenger.Departing Sat, 11 Apr, returning Mon, 13 Apr.Return flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Sat, 11 Apr, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 13 Apr, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $268, select.

Washington D.C..$293 per passenger.Departing Thu, 26 Mar, returning Mon, 6 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Thu, 26 Mar, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Washington Dulles on Mon, 6 Apr, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $293, select.

Washington D.C..$300 per passenger.Departing Wed, 27 May, returning Tue, 2 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Wed, 27 May, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Washington Dulles on Tue, 2 Jun, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $300, select.

Washington D.C..$335 per passenger.Departing Fri, 17 Apr, returning Sun, 3 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Fri, 17 Apr, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Washington Dulles on Sun, 3 May, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $335, select.

Washington D.C..$430 per passenger.Departing Wed, 25 Mar, returning Wed, 8 Apr.Return flight with United.Outbound direct flight with United departs from Houston George Bush Intercntl. on Wed, 25 Mar, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 8 Apr, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $430, select.

Washington D.C..$486 per passenger.Departing Sat, 8 Aug, returning Wed, 12 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Sat, 8 Aug, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Washington Dulles on Wed, 12 Aug, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From $486, 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 March.

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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 found	$244
Cheapest month to fly	March
Average flight time	3 hrs, 7 mins
Most popular airline	United
Average flights per week	133

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

How much are return flights from Houston George Bush Intercntl. to Washington Dulles?

The best price we found for a return flight from Houston George Bush Intercntl. to Washington Dulles is $244. 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.

How long does it take to fly from Houston George Bush Intercntl. to Washington Dulles?

3 hours and 7 minutes is the average flight time from Houston George Bush Intercntl. to Washington Dulles.

Which airlines fly direct from Houston George Bush Intercntl. to Washington Dulles?

United, Air New Zealand and Avianca fly direct from Houston George Bush Intercntl. to Washington Dulles.

How many flights are there a week from Houston George Bush Intercntl. to Washington Dulles?

As of March 2026, there are 133 flights per week flying from Houston George Bush Intercntl. to Washington Dulles.

When is the cheapest time to fly from Houston George Bush Intercntl. to Washington Dulles?

The cheapest month to fly from Houston George Bush Intercntl. to Washington Dulles is usually March.

Which upcoming date is cheapest to fly from Houston George Bush Intercntl. Airport to Washington Dulles Airport on?

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 Thursday, 19 March 2026.

Can I get a direct flight from Houston George Bush Intercntl. Airport to Washington Dulles Airport?

Yes – the average flight time is 3 hours and 7 minutes.

How can I find the best flight deal to Washington Dulles?

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.

When is the best time to book flights to Washington D.C.?

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.

Which is the cheapest airline to fly from Houston George Bush Intercntl. Airport to Washington Dulles with?

Currently, Frontier Airlines and United offer the cheapest flight tickets to Washington Dulles.

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

Jump on a direct flight from George Bush Intercontinental Airport to Washington Dulles International Airport and you'll be travelling for an average of 3 hours 5 minutes.
The timezone in Washington DC is UTC-4, which is one hour ahead of Houston.
You can choose from 149 weekly George Bush Intercontinental Airport to Washington Dulles International Airport flights. The 07:22 departure with United Airlines is the earliest flight you can take. United Airlines operates the last service of the day at 20:03.
Give yourself enough time to make your IAH to IAD flight. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.
Be prepared for longer lines during popular months like July. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a wise move.
United Airlines offers direct flights from George Bush Intercontinental Airport to Washington Dulles International Airport. Book with this popular airline, then get ready to tick off the sights in Washington DC — and maybe even more of United States if your schedule allows.
The airline with the highest number of bookings on this route is United Airlines.
The most punctual carrier that offers IAH to IAD flights is United Airlines. Its services arrive as scheduled 76.64% of the time.
If you'd like to break up your flight, simply deselect 'Direct flights only' when searching for your ticket from George Bush Intercontinental Airport to Washington Dulles International Airport. Here are the most popular stopovers between IAH and IAD:
- Hartsfield-Jackson Atlanta International Airport
- Louisville International Airport-Standiford Field
- Charlotte Douglas International Airport

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

At the moment, $134 is the cheapest price we've seen for a one-way George Bush Intercontinental Airport to Washington Dulles International Airport flight. The best price for a return ticket is $244. Keep in mind that fares may change due to availability when booking.
Book six months before flying. After crunching the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from IAH to IAD.
The cheapest month for flights from George Bush Intercontinental Airport to Washington Dulles International Airport is May. Use the 'Whole month' tool to find the lowest prices if you have a flexible schedule.
You won't have to check back in every day to see if fares have dropped when you create a Price Alert. We'll send you an update as soon as a special offer becomes available on cheap flights from IAH to IAD.
Select your preferred departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from George Bush Intercontinental Airport to Washington Dulles International Airport.

Handy information about George Bush Intercontinental Airport (IAH)

IAH's address is 16930 JFK Boulevard.
Of the departures from George Bush Intercontinental Airport, 78.42% touch down on time at their destination.
Central Houston to George Bush Intercontinental Airport is approximately 27 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're driving, ride-sharing or catching a cab.
Planning to catch public transport? You can expect a journey time of around 50 minutes.
Looking for a convenient hotel close to IAH? If you've booked an early flight from George Bush Intercontinental Airport to Washington Dulles International Airport, these stays will put you moments from your departure lounge:

Arriving at Washington Dulles International Airport (IAD)

Consider booking a hotel close to IAD if you're on a late George Bush Intercontinental Airport to Washington Dulles International Airport flight. Select one of these options and skip the long transfer after landing:
Go where the road takes you with a Washington Dulles International Airport rental car. Pick up a set of wheels from Dollar, Thrifty or Sixt and venture far and wide through Washington DC and beyond.
Booking your ride from Washington Dulles International Airport around one week in advance can help you get the best possible rate.

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

The address for IAD is 1 Saarinen Circle.
Washington Dulles International Airport to the centre of Washington DC has a drive time of around 50 minutes. It's approximately 56 kilometres away.
If you're using public transport, expect a journey time of around 3 hours 25 minutes.

When to fly to Washington Dulles International Airport (IAD)

April is the most popular month for flights from George Bush Intercontinental Airport to Washington Dulles International Airport. To escape the crowds, visit Washington DC in January.
When booking your flight from George Bush Intercontinental Airport to Washington Dulles International Airport, think about the type of weather you like. July is the warmest month in Washington DC, with the temperature ranging from 19ºC to 33ºC.
If you like cooler conditions, look for a cheap ticket from IAH to IAD in January. Average temperatures are between -6ºC and 10ºC then.

Explore more of United States

You've visited Washington DC, now it's time to discover other parts of United States. Journey about 322 kilometres north-east to New York to check off its popular sights. From Statue of Liberty to Central Park and Empire State Building, you've got a jam-packed schedule ahead.
Around 193 kilometres north-east of Washington DC, Philadelphia is another essential stop in United States. Get a taste of what this destination has to offer at Liberty Bell, Independence Hall and Philadelphia Museum of Art.