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Dulles Intl

$113+ Cheap flights from Houston to Dulles Intl (IAD)

HOU — IAD
Dec 5 — Dec 121
Sat 12/5
Sat 12/12
1 adult, Economy
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Cheap flight deals from Houston to Dulles Intl

Cheapest flights from Houston to Dulles Intl

Mon 11/168:18 am -
1 stop10h 53m
Wed 11/187:48 am -
1 stop7h 56m
Deal found 11/5$242
Sat 12/51:43 pm -
1 stop5h 45m
Sun 12/69:23 pm -
2 stops22h 54m
Deal found 11/4$243
Sat 11/215:01 am -
1 stop14h 39m
Sun 11/228:22 pm -
1 stop13h 22m
Deal found 11/3$244
Tue 11/106:00 am -
1 stop10h 12m
Thu 11/126:07 pm -
1 stop21h 37m
Deal found 11/3$245
Fri 11/138:18 am -
1 stop10h 53m
Sun 11/159:06 pm -
1 stop11h 17m
Deal found 11/1$246
Thu 11/128:18 am -
1 stop10h 53m
Tue 11/176:07 pm -
2 stops39h 38m
Deal found 11/1$247
Fri 12/119:41 am -
1 stop6h 57m
Sun 1/1010:37 pm -
2 stops18h 44m
Deal found 11/3$248
Sat 12/199:03 am -
1 stop11h 54m
Thu 12/249:44 pm -
1 stop13h 49m
Deal found 11/3$249
Mon 11/28:18 am -
1 stop10h 53m
Mon 11/166:07 pm -
1 stop21h 37m
Deal found 11/1$250
Tue 11/106:00 am -
1 stop10h 12m
Mon 11/166:07 pm -
1 stop21h 37m
Deal found 11/3$251
Wed 11/188:21 pm -
2 stops22h 50m
Sun 11/228:22 pm -
1 stop13h 22m
Deal found 11/2$253
Thu 12/245:00 pm -
1 stop15h 52m
Tue 12/296:00 am -
1 stop18h 15m
Deal found 11/4$307

Find flight deals from Houston to Dulles Intl

Round-trip from

$242
(Cheapflightsfares)

One-way from

$113
(Kiwi.com)

Popular in

February

Cheapest in

November

Average price

$305
From Houston to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Houston to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Houston to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonWashington, D.C.

IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl

IAHIAD

Houston George Bush Intcntl

Fri 1/15

6:44 pm-10:45 pm

Nonstop3h 01m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149

HoustonWashington, D.C.

IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl

IAHIAD

Houston George Bush Intcntl

Sat 1/9

7:20 am-11:25 am

Nonstop3h 05m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149

HoustonWashington, D.C.

IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl

IAHIAD

Houston George Bush Intcntl

Thu 12/24

8:40 pm-12:41 am

Nonstop3h 01m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149
Quickest round-trip

HoustonWashington, D.C.

IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl

IAHIAD

Houston George Bush Intcntl

Thu 11/26

2:20 pm-6:20 pm

Nonstop3h 00m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$149

HoustonWashington, D.C.

HOU Houston Hobby - IAD Washington, D.C. Dulles Intl

HOUIAD

Houston Hobby

Tue 12/1

6:12 am-11:43 am

1 stop4h 31m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$159

HoustonWashington, D.C.

HOU Houston Hobby - IAD Washington, D.C. Dulles Intl

HOUIAD

Houston Hobby

Fri 1/15

6:00 am-2:04 pm

1 stop7h 04m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$159

HoustonWashington, D.C.

HOU Houston Hobby - IAD Washington, D.C. Dulles Intl

HOUIAD

Houston Hobby

Wed 12/23

6:51 pm-12:36 am

1 stop4h 45m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$159

HoustonWashington, D.C.

IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl

IAHIAD

Houston George Bush Intcntl

Tue 12/1

6:38 pm-10:42 pm

Nonstop3h 04m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$204

HoustonWashington, D.C.

IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl

IAHIAD

Houston George Bush Intcntl

Wed 12/23

6:40 pm-10:41 pm

Nonstop3h 01m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$204

HoustonWashington, D.C.

IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl

IAHIAD

Houston George Bush Intcntl

Sun 12/20

2:36 pm-6:36 pm

Nonstop3h 00m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

Showing 1-10 of 42 resultsSorted by cheapest first
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Best time to book a flight from Houston to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Houston with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Houston to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Houston to Washington, D.C. Dulles Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Houston to Washington, D.C. Dulles Intl Airport (average of $373). Flying from Houston to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $580). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HOU to IAD?

It’s optimal to fly from Houston to Washington, D.C. Dulles Intl Airport at noon. By choosing this option you can save up to 36% on the cost of your flight, compared to a flight in the evening.

How much does it cost to fly round-trip from Houston to Washington, D.C. Dulles Intl Airport?

Airfare is typical for this route at the moment.
Houston to Washington, D.C. Dulles Intl Airport flights typically cost between $187 and $564 in November.
The cheapest round-trip price found within the last 5 days was $242 on Frontier (Nov 16-Nov 18).

How often are flights from Houston to Washington, D.C. delayed?

About 38% of weekly flights between Houston and Washington, D.C. have experienced delays in the past year, with the average delay time being 68 minutes.

What is the most punctual flight time for Houston to Washington, D.C. flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

How far ahead should I book a flight from Houston to Washington, D.C. Dulles Intl Airport?

To ensure you get the cheapest price possible for a flight from Houston to Washington, D.C. Dulles Intl Airport, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from Houston to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Houston to Washington, D.C. Dulles Intl Airport flight should consider departing on Saturday at noon when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Houston to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Houston to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with Delta,United Airlines, andFrontier from Houston to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,701 reviews

Entertainment

7.8

Food

7.2

Overall

7.8

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
Delta
7.8
Good
8,701 reviews
Delta
7.8
Good
8,701 reviews

Entertainment

7.8

Food

7.2

Overall

7.8

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
United Airlines
7.3
Good
10,463 reviews
Delta
7.8
Good
8,701 reviews

Entertainment

7.8

Food

7.2

Overall

7.8

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
Frontier
5.5
Fair
2,511 reviews
Delta
7.8
Good
8,701 reviews

Entertainment

7.8

Food

7.2

Overall

7.8

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.

Related info for your journey

  • How long is the flight from Houston to Washington, D.C. Dulles Intl Airport?

    Delta and United Airlines can get you from Houston to Washington, D.C. Dulles Intl Airport in just under 3h 04m. Your travel time can differ by up to 12h 48m. Houston and Washington, D.C. Dulles Intl Airport are separated by a distance of 1188 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Houston to Washington, D.C. Dulles Intl Airport round-trip?

    According to our current data, Frontier ($113), Delta ($232), and United Airlines ($258) offers the cheapest pricing from Houston to Washington, D.C. Dulles Intl Airport. Users have found that Frontier is 75% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Houston to Washington, D.C. Dulles Intl Airport one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $55. Users have also found prices from $159 and $196 on United Airlines and Delta, respectively.

  • Can I find deals for flights from Houston to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Houston to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Dulles Intl.

  • Can I find deals for business class flights from Houston to Dulles Intl?

    Yes. Cheapflights offers flight deals from Houston to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston to Washington, D.C. Dulles Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Houston to Washington, D.C. Dulles Intl Airport (average of $373). Flying from Houston to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $580). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Chantilly
Woodbridge
Arlington
Sterling
Lanham
Reston
Herndon
Hyattsville
Springfield
Fredericksburg
Falls Church
Towson
Silver Spring
Rockville
Oxon Hill
Laurel
Clinton
Hunt Valley
Owings Mills

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Houston to Dulles Intl

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$113Average$289FlexibilityNo cancel feeOn-time62%
DeltaCheapest$232Average$418FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$503FlexibilityNo cancel feeOn-time69%

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