HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$97+ 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 6/20. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — IAD
Apr 16 — Apr 231
Wed 4/16
Wed 4/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from George Bush Intcntl to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Houston George Bush Intcntl to Washington, D.C. Dulles Intl are usually found in September or August, booked 71 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 April 11, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$200
(Frontier)

One-way from

$100
(CheapOair)

Popular in

May

Cheapest in

September

Average price

$429

Good round-trip deal

$527 or less

Good one-way deal

$195 or less
Provider with most accurate pricing for Houston George Bush Intcntl-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Washington, D.C. Dulles Intl flights.
Search Deals
From Houston George Bush Intcntl to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Houston George Bush Intcntl to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Houston George Bush Intcntl to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Houston George Bush Intcntl to Washington, D.C. Dulles Intl.
Search Deals

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 April 11, 2025.

This CheapOair deal was found by Cheapflights users on 4/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/28:27 pmIAH - IAD
1 stop9h 04mFrontier
Sun 5/49:34 amIAD - IAH
1 stop9h 58mFrontier
Deal found 4/10$200
This American Airlines deal was found by Cheapflights users on 4/10. 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.
Fri 5/26:34 amIAH - IAD
1 stop6h 08mAmerican Airlines
Fri 5/25:13 pmIAD - IAH
1 stop6h 28mAmerican Airlines
Deal found 4/10$245
This United Airlines deal was found by Cheapflights users on 4/10. 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.
Fri 5/27:20 amIAH - IAD
Nonstop3h 10mUnited Airlines
Fri 5/165:40 pmIAD - IAH
Nonstop3h 31mUnited Airlines
Deal found 4/10$269
This Mytrip deal was found by Cheapflights users on 4/10. 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.
Thu 6/121:58 pmIAH - IAD
2 stops29h 39mMultiple Airlines
Sun 6/1511:52 amIAD - IAH
1 stop10h 00mMultiple Airlines
Deal found 4/10$288
This Delta deal was found by Cheapflights users on 4/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/25:00 pmIAH - IAD
1 stop5h 07mDelta
Mon 5/57:46 pmIAD - IAH
1 stop5h 10mDelta
Deal found 4/11$289
This Alaska Airlines deal was found by Cheapflights users on 4/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/275:54 pmIAH - IAD
2 stops21h 20mAlaska Airlines
Sat 5/317:25 pmIAD - IAH
2 stops22h 29mAlaska Airlines
Deal found 4/9$461

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 April 11, 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

Fri 5/2

8:27 pm-6:31 am

1 stop9h 04m

Washington, D.C. Dulles Intl

Wed 5/7

7:45 am-11:18 am

1 stop28h 33m

$200

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 4/23

7:47 am-1:42 pm

1 stop4h 55m

Washington, D.C. Dulles Intl

Wed 4/23

5:13 pm-10:41 pm

1 stop6h 28m

$229

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 5/30

7:44 pm-2:44 pm

2 stops18h 00m

Washington, D.C. Dulles Intl

Sat 5/31

9:55 pm-7:29 am

1 stop10h 34m

$251

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 5/2

7:50 pm-11:58 pm

Nonstop3h 08m

Washington, D.C. Dulles Intl

Fri 5/16

10:20 pm-12:47 am

Nonstop3h 27m

$269

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 7/16

11:50 am-6:48 pm

1 stop5h 58m

Washington, D.C. Dulles Intl

Tue 7/22

7:00 am-12:09 pm

1 stop6h 09m

$289

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 6/20

9:47 pm-8:52 pm

1 stop22h 05m

$97

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Sat 5/3

8:17 am-4:34 pm

1 stop7h 17m

$100

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Thu 5/8

10:10 am-2:20 pm

Nonstop3h 10m

$135

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Tue 7/1

12:05 pm-10:39 pm

1 stop9h 34m

$138

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 7/16

3:25 pm-10:59 pm

1 stop6h 34m

$145

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 11 results
1
2

Compare providers for flights from George Bush Intcntl to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to Dulles Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 security wait times on the IAH website to plan your arrival and ensure a smooth departure.

Read more about IAHby Evie Carrick
IAD

Use the Silver Line Metro for a cost-effective trip from IAD to downtown Washington, D.C. in under 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 April 4, 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 71 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, August 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 $309). Flying from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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 April 11, 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 49% on the cost of your flight, compared to a flight at noon.

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 March 30, 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. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from George Bush Intcntl to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 11, 2025.

The most flights from IAH to IAD are scheduled on a Wednesday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 11, 2025.
Read through reviews of airlines operating flights from Houston to Washington, D.C., such as Alaska Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,851 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,911 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,636 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Frontier
6.0
Okay
3,277 reviews
Alaska Airlines
8.0
Very good
9,851 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 $200 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $245 and $269 round-trip. Frontier is priced at 47% 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 $100. Users have also found prices from $135 and $145 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 (100%), Avianca (89%), Air New Zealand( 83%).

  • 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 $134. While the most popular route (Houston George Bush Intcntl - Washington, D.C. Dulles Intl) can be booked for $200 on average our data indicates $1,730 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, August 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 $309). Flying from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $383). 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 Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Tysons
Springfield
Rockville
Fredericksburg
Woodbridge
Gaithersburg
Linthicum Heights
Silver Spring
Falls Church
Laurel
Easton
Herndon
Sterling
Bowie
Gettysburg
National Harbor
Oxon Hill

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 4 airlines flying from George Bush Intcntl to Dulles Intl

Discover the top 4 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 April 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$72Average$190FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$236Average$373FlexibilityNo cancel feeOn-time71%
DeltaCheapest$240Average$343FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$249Average$398FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.