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Dulles Intl

$99+ Cheap flights from George Bush Intcntl (IAH) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — IAD
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Washington, D.C. Dulles Intl are usually found in September or August, booked 44 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from George Bush Intcntl to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 31, 2025.

Round-trip from

$198
(Frontier)

One-way from

$99
(Gotogate)

Popular in

July

Cheapest in

September

Average price

$432

Good round-trip deal

$584 or less

Good one-way deal

$174 or less
From Houston George Bush Intcntl to Washington, D.C. Dulles Intl
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One-way flight from Houston George Bush Intcntl to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Houston George Bush Intcntl to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Houston George Bush Intcntl to Washington, D.C. Dulles Intl.
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Find flight deals from George Bush Intcntl to Dulles Intl

Cheapest flights from George Bush Intcntl to Dulles Intl
Explore the most affordable flight options available from George Bush Intcntl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/62:28 pmIAH - IAD
1 stop8h 51mFrontier
sáb. 8/94:07 pmIAD - IAH
1 stop7h 49mFrontier
Deal found 7/29$198
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/42:52 pmIAH - IAD
1 stop16h 54mAmerican Airlines
dom. 10/511:47 amIAD - IAH
1 stop7h 51mAmerican Airlines
Deal found 7/30$215
This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/165:27 pmIAH - IAD
2 stops15h 47mMultiple Airlines
jue. 8/214:56 pmIAD - IAH
2 stops19h 54mMultiple Airlines
Deal found 7/31$241
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/186:10 pmIAH - IAD
Nonstop3h 05mUnited Airlines
dom. 9/216:00 amIAD - IAH
Nonstop3h 14mUnited Airlines
Deal found 7/30$277

Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 31, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

George Bush Intcntl

Fly to

Dulles Intl

Route

Depart

Return

Price

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

mié. 8/6

2:28 pm-12:19 am

1 stop8h 51m

Washington, D.C. Dulles Intl

sáb. 8/9

4:07 pm-10:56 pm

1 stop7h 49m

$198

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

sáb. 10/4

2:52 pm-8:46 am

1 stop16h 54m

Washington, D.C. Dulles Intl

dom. 10/5

11:47 am-6:38 pm

1 stop7h 51m

$215

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

sáb. 8/16

5:27 pm-10:14 am

2 stops15h 47m

Washington, D.C. Dulles Intl

dom. 8/24

4:56 pm-11:50 am

2 stops19h 54m

$239

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

jue. 9/18

6:10 pm-10:15 pm

Nonstop3h 05m

Washington, D.C. Dulles Intl

dom. 9/21

6:00 am-8:14 am

Nonstop3h 14m

$277

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

mar. 8/5

4:40 pm-12:19 am

1 stop6h 39m

$99

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

mié. 10/29

12:51 pm-11:23 am

3 stops21h 32m

$110

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

jue. 8/28

7:50 pm-11:55 pm

Nonstop3h 05m

$139

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

mar. 10/28

3:10 pm-11:00 pm

1 stop6h 50m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport trip
Airports
IAH

Check the IAH website for security wait times to ensure a smooth departure. Both standard and TSA PreCheck lines are available.

Read more about IAHby Evie Carrick
IAD

Use the Washington Metro Silver Line for a cost-effective trip to downtown D.C. from IAD, taking less than 40 minutes.

Read more about IADby Ramsey Qubein
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

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

Ramsey Qubein

Ramsey Qubein

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

Best time to book a flight from George Bush Intcntl to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from George Bush Intcntl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Dulles Intl. Price data was last updated on July 25, 2025.

The price you pay for your flight from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 44 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, July is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 IAH to IAD?

Find hourly flight availability from George Bush Intcntl to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

It’s optimal to fly from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport in the evening. By choosing this option you can save up to 33% on the cost of your flight, compared to a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Dulles Intl. Price data was last updated on July 27, 2025.

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

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated julio 31, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.9
Fair
3,239 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Our cheapest airline available from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport is Frontier. Our recent data shows that you can find tickets from as low as $198 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $215 and $277 round-trip. Frontier is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Houston George Bush Intcntl Airport 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 $99. Users have also found prices from $139 and $149 on United Airlines and Delta, respectively.

  • What are the most reliable airlines from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?

    Before booking your flight to Washington, D.C. Dulles Intl Airport from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: Air China (94%), United Airlines (80%), Avianca( 75%).

  • What are the cheapest flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?

    Looking at all options, your cheapest flight can be booked for $115. While the most popular route (Houston George Bush Intcntl - Washington, D.C. Dulles Intl) can be booked for $205 on average our data indicates $2,567 when flying from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport.

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

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

  • How can I find direct flights from George Bush Intcntl to Dulles Intl?

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

  • Can I find deals for business class flights from George Bush Intcntl to Dulles Intl?

    Yes. Cheapflights offers flight deals from George Bush Intcntl 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 George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Easton
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Bowie

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Alternative routes for George Bush Intcntl to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Dulles Intl flights
Hobby to Baltimore flights
Hobby to Reagan-National flights
George Bush Intcntl to Reagan-National flights
George Bush Intcntl to Baltimore flights

Top 5 airlines flying from George Bush Intcntl to Dulles Intl

Discover the top 5 airlines that operate flights from George Bush Intcntl to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$119Average$211FlexibilityNo cancel feeOn-time65%
FrontierCheapest$190Average$328FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$313FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$343FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$256Average$389FlexibilityNo cancel feeOn-time69%

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