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George Bush Intcntl

$116+ Cheap flights from Dulles Intl (IAD) to George Bush Intcntl (IAH)

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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — IAH
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Houston George Bush Intcntl are usually found in September or April, booked 90 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Dulles Intl to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to George Bush Intcntl (IAH). 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 July 3, 2025.

Round-trip from

$173
(FlightHub)

One-way from

$116
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$368

Good round-trip deal

$382 or less

Good one-way deal

$234 or less
From Washington, D.C. Dulles Intl to Houston George Bush Intcntl
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One-way flight from Washington, D.C. Dulles Intl to Houston George Bush Intcntl
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Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 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 Washington, D.C. Dulles Intl to Houston George Bush Intcntl.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Houston George Bush Intcntl.
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Find flight deals from Dulles Intl to George Bush Intcntl

Cheapest flights from Dulles Intl to George Bush Intcntl
Explore the most affordable flight options available from Dulles Intl to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This FlightHub deal was found by Cheapflights users on 7/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/19:33 pmIAD - IAH
1 stop19h 07mFrontier
Wed 9/104:31 pmIAH - IAD
1 stop24h 41mFrontier
Deal found 7/3$173
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Thu 8/2110:05 pmIAD - IAH
Nonstop3h 12mUnited Airlines
Mon 8/253:05 pmIAH - IAD
Nonstop3h 08mUnited Airlines
Deal found 7/1$177

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl to George Bush Intcntl 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 July 3, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport that are best for you.

Fly from

Dulles Intl

Fly to

George Bush Intcntl

Route

Depart

Return

Price

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Mon 9/1

9:33 pm-3:40 pm

1 stop19h 07m

Houston George Bush Intcntl

Wed 9/10

4:31 pm-6:12 pm

1 stop24h 41m

$173

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Thu 8/21

10:05 pm-12:17 am

Nonstop3h 12m

Houston George Bush Intcntl

Mon 8/25

3:05 pm-7:13 pm

Nonstop3h 08m

$177

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Sat 9/20

6:00 am-8:14 am

Nonstop3h 14m

$116

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Thu 7/17

6:10 am-3:45 pm

1 stop10h 35m

$118

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Wed 9/17

10:07 am-4:27 pm

1 stop7h 20m

$119

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Sat 9/6

8:25 am-5:53 am

3 stops22h 28m

$121

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Thu 10/16

6:11 am-6:32 pm

1 stop13h 21m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

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

Check-in at IAD can be crowded in the afternoon and evening. Arrive early to navigate the busy area efficiently.

Read more about IADby Ramsey Qubein
IAH

For a quick ride to downtown Houston from IAH, Uber or Lyft are recommended, taking about 25 minutes.

Read more about IAHby Evie Carrick
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 Dulles Intl to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to George Bush Intcntl. Price data was last updated on June 27, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport (average of $241). Flying from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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 IAD to IAH?

Find hourly flight availability from Dulles Intl to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 30% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to George Bush Intcntl. Price data was last updated on June 29, 2025.

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

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

Explore weekly flight availability from Dulles Intl to George Bush Intcntl. 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 July 3, 2025.

The most flights from IAD to IAH are scheduled on a Tuesday (17 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated July 3, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

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
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

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
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

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
3,286 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

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 Dulles Intl to George Bush Intcntl. 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 Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport round-trip?

    According to our current data, Frontier ($173), and United Airlines ($177) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport. These flights start at 53% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $116. Delta flights start at $119 while deals on Frontier start at $120 one-way.

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

    Consider Emirates (77%), Avianca (76%) or Air New Zealand (71%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport.

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

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport? While on average our users pay $1,087, our data indicates the cheapest price to be $136. The most popular route (Washington, D.C. Dulles Intl - Houston George Bush Intcntl), is priced around $176.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport (average of $241). Flying from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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
Montgomery
Humble
Spring
Conroe
Tomball
Katy
Jersey Village
The Woodlands

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Alternative routes for Dulles Intl to George Bush Intcntl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Dulles Intl to George Bush Intcntl

Discover the top 5 airlines that operate flights from Dulles Intl to George Bush Intcntl. 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$95Average$150FlexibilityNo cancel feeOn-time65%
FrontierCheapest$110Average$200FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$384FlexibilityNo cancel feeOn-time71%
DeltaCheapest$240Average$345FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$269Average$375FlexibilityNo cancel feeOn-time69%

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