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Cheap Flights from Houston (HOU) to Washington D.C. (IAD)

Compare Houston Hobby 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 Hobby to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Houston Hobby Airport to Washington Dulles Airport? If you want to travel next month, return fares start from $342. Find the lowest prices on one-way and return tickets right here.
Washington D.C..$342 per passenger.Departing Thu, 27 Aug, returning Tue, 1 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Thu, 27 Aug, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Tue, 1 Sep, arriving in Houston Hobby.Price includes taxes and charges.From $342, select.
Washington D.C..$342 per passenger.Departing Tue, 1 Sep, returning Tue, 8 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Tue, 1 Sep, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Tue, 8 Sep, arriving in Houston Hobby.Price includes taxes and charges.From $342, select.
Washington D.C..$342 per passenger.Departing Tue, 11 Aug, returning Sat, 15 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Tue, 11 Aug, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Sat, 15 Aug, arriving in Houston Hobby.Price includes taxes and charges.From $342, select.
Washington D.C..$342 per passenger.Departing Thu, 8 Oct, returning Sat, 10 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Thu, 8 Oct, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Sat, 10 Oct, arriving in Houston Hobby.Price includes taxes and charges.From $342, select.
Washington D.C..$376 per passenger.Departing Fri, 11 Sep, returning Mon, 26 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Fri, 11 Sep, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Mon, 26 Oct, arriving in Houston Hobby.Price includes taxes and charges.From $376, select.
Washington D.C..$410 per passenger.Departing Wed, 11 Nov, returning Sat, 14 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Wed, 11 Nov, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Sat, 14 Nov, arriving in Houston Hobby.Price includes taxes and charges.From $410, select.
Washington D.C..$412 per passenger.Departing Wed, 28 Oct, returning Tue, 3 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Wed, 28 Oct, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Tue, 3 Nov, arriving in Houston Hobby.Price includes taxes and charges.From $412, select.
Washington D.C..$425 per passenger.Departing Sat, 12 Dec, returning Mon, 14 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Sat, 12 Dec, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Mon, 14 Dec, arriving in Houston Hobby.Price includes taxes and charges.From $425, select.
Washington D.C..$442 per passenger.Departing Wed, 16 Sep, returning Wed, 11 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Wed, 16 Sep, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Wed, 11 Nov, arriving in Houston Hobby.Price includes taxes and charges.From $442, select.
Washington D.C..$459 per passenger.Departing Sat, 12 Dec, returning Tue, 5 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Sat, 12 Dec, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Tue, 5 Jan, arriving in Houston Hobby.Price includes taxes and charges.From $459, select.
Washington D.C..$477 per passenger.Departing Sat, 9 Jan, returning Wed, 13 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Sat, 9 Jan, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Wed, 13 Jan, arriving in Houston Hobby.Price includes taxes and charges.From $477, select.
Washington D.C..$544 per passenger.Departing Thu, 26 Nov, returning Tue, 1 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Thu, 26 Nov, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Tue, 1 Dec, arriving in Houston Hobby.Price includes taxes and charges.From $544, select.
Washington D.C..$561 per passenger.Departing Fri, 12 Feb, returning Sat, 13 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Fri, 12 Feb, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Sat, 13 Feb, arriving in Houston Hobby.Price includes taxes and charges.From $561, select.
Washington D.C..$600 per passenger.Departing Fri, 26 Mar, returning Mon, 29 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Fri, 26 Mar, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Mon, 29 Mar, arriving in Houston Hobby.Price includes taxes and charges.From $600, select.
Washington D.C..$600 per passenger.Departing Thu, 29 Apr, returning Sun, 2 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Thu, 29 Apr, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Sun, 2 May, arriving in Houston Hobby.Price includes taxes and charges.From $600, select.
Washington D.C..$601 per passenger.Departing Sun, 26 Jul, returning Thu, 20 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Houston Hobby on Sun, 26 Jul, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Thu, 20 Aug, arriving in Houston Hobby.Price includes taxes and charges.From $601, select.

Find the cheapest month to fly from Houston Hobby to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston Hobby to Washington Dulles flights are currently cheapest in August.
Jul
from $781
Aug
from $343
Sep
from $343
Oct
from $343
Nov
from $411
Dec
from $425
Jan
from $478
Feb
from $562
Mar
from $601
Apr
from $1,080
May
Find prices
Jun
Find prices

Houston Hobby to Washington Dulles: Alternative routes

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

Washington Ronald Reagan

5km from central Washington D.C.
ClosestCheapest
from $314
Search flights

Washington Dulles

37km from central Washington D.C.
from $343
Search flights

Baltimore Washington International

44km from central Washington D.C.
from $315
Search flights

Houston to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found$342
Cheapest month to flyAugust

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

The best price we found for a return flight from Houston Hobby to Washington Dulles is $343. 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.
Currently, there are no airlines that fly direct from Houston Hobby to Washington Dulles. But we found flights with one or more stops from $342.
As of July 2026, there are no flights flying from Houston Hobby to Washington Dulles.
The cheapest month to fly from Houston Hobby to Washington Dulles is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Houston Hobby Airport to Washington Dulles Airport on Tuesday, 11 August 2026.
No airlines currently offer direct flights between Houston Hobby Airport and Washington Dulles Airport. Most routes have one or more stops.
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, Delta offers the cheapest flight tickets to Washington Dulles.

Flying from Houston Hobby Airport (HOU) to Washington Dulles Airport (IAD): what you need to know

  • The timezone in Washington DC is UTC-5, which is one hour ahead of Houston.

  • Arrive at the airport on time so you don't miss your HOU to IAD flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid a last-minute sprint to the gate.

  • Flying during a peak month like July? School holidays and other high seasons can lead to longer lines at check-in and security. Play things extra safe and arrive up to four hours ahead of international flights and two hours before domestic departures.

  • We make it easy to book a flight with a stopover. To see your options for tickets from Houston Hobby Airport to Washington Dulles Airport, uncheck 'Direct flights only.' Then, pick a flight that has a stop long enough to visit the city of your choice. Worthwhile stopovers between HOU and IAD include:

    • Atlanta Hartsfield-Jackson Airport

    • Charlotte Douglas Airport

    • Jacksonville International Airport

How to find the cheapest flights from Houston Hobby Airport (HOU) to Washington Dulles Airport (IAD)

  • Currently, $171 is the cheapest price we've found for a one-way Houston Hobby Airport to Washington Dulles Airport flight. The best price for a return plane ticket is $342. Bear in mind that fares could change due to demand at the time of booking.

  • It's usually smart to book ahead of time if you want to get cheap tickets from HOU to IAD. That's because airlines change prices based on demand, which tends to rise closer to the date of departure.

  • If you're flexible with your travel dates, try using the 'Whole month' tool. It'll give you the lowest price in every month when searching for your flight from Houston Hobby Airport to Washington Dulles Airport.

  • Getting your hands on cheap flights from HOU to IAD is easy with Price Alerts. Simply create one of these automatic alerts and we'll let you know as soon as a new deal comes up.

  • Pick your preferred departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Houston Hobby Airport to Washington Dulles Airport.

Handy information about Houston Hobby Airport (HOU)

  • You'll find HOU at 7800 Airport Boulevard.

  • When it comes to Houston Hobby Airport's on-time performance, data shows 79% of flights arrive within the scheduled timeframe.

  • Central Houston to Houston Hobby Airport is around 19 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're driving, catching a taxi or ride-sharing.

  • The journey when using public transport usually takes 50 minutes.

  • Get your travels off to a hassle-free start by staying near HOU. Whether you're taking an early flight from Houston Hobby Airport to Washington Dulles Airport or just don't like being rushed, these stays are perfect:

Arriving at Washington Dulles Airport (IAD)

When to fly to Washington Dulles Airport (IAD)

  • The quietest month for a flight from Houston Hobby Airport to Washington Dulles Airport is February, while July is the most popular. Pick the ideal time to go to Washington DC based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • Before locking in your flight from Houston Hobby Airport to Washington Dulles Airport, consider the kind of weather you like. July is the warmest month in Washington DC, with the temperature ranging from 19ºC (66ºF) to 33ºC (91ºF).

  • For cooler conditions, look for a cheap ticket from HOU to IAD in January. Temperatures average between -6ºC (21ºF) and 10ºC (50ºF) then.

Explore more of the United States

  • You've visited Washington DC, now it's time to explore more of the United States. Travel about 322 kilometres north-east to New York to tick off its top sights. From Central Park to Statue of Liberty and Metropolitan Museum of Art, you'll have a full itinerary ahead.

  • Philadelphia is another well-known destination in the United States and is around 193 kilometres north-east of Washington DC. No trip is complete without dropping by Independence Hall, Liberty Bell and Philadelphia Museum of Art.

Plan smart, explore more

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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 12 days.