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George Bush Intcntl

$85+ 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — IAH
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$143
(CheapOair)

One-way from

$85
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$260

Good round-trip deal

$353 or less

Good one-way deal

$171 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. 6% potential increase in price ($24 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 September 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 September 16, 2025.

This CheapOair deal was found by Cheapflights users on 9/14. 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 10/315:34 pmIAD - IAH
1 stop5h 32mFrontier
Mon 11/35:58 pmIAH - IAD
1 stop5h 13mFrontier
Deal found 9/14$143
This CheapOair deal was found by Cheapflights users on 9/14. 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 10/173:10 pmIAD - IAH
1 stop18h 50mFrontier
Mon 10/2012:42 pmIAH - IAD
1 stop5h 32mFrontier
Deal found 9/14$144
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Mon 9/227:14 pmIAD - IAH
1 stop21h 22mFrontier
Thu 9/2511:44 amIAH - IAD
1 stop5h 40mFrontier
Deal found 9/15$145
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/810:18 pmIAD - IAH
Nonstop3h 12mUnited Airlines
Fri 10/174:54 pmIAH - IAD
Nonstop3h 05mUnited Airlines
Deal found 9/15$147
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Sat 11/17:10 amIAD - IAH
1 stop5h 55mFrontier
Wed 11/58:00 amIAH - IAD
1 stop11h 20mFrontier
Deal found 9/15$150
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/239:15 amIAD - IAH
1 stop8h 19mFrontier
Fri 9/265:47 pmIAH - IAD
1 stop5h 28mFrontier
Deal found 9/15$151
This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/249:15 amIAD - IAH
1 stop8h 19mFrontier
Sun 9/289:10 pmIAH - IAD
1 stop21h 59mFrontier
Deal found 9/15$157
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/510:09 pmIAD - IAH
1 stop18h 35mFrontier
Wed 10/88:05 amIAH - IAD
1 stop10h 41mFrontier
Deal found 9/14$163
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:00 amIAD - IAH
1 stop7h 04mMultiple Airlines
Mon 11/35:58 pmIAH - IAD
1 stop5h 13mMultiple Airlines
Deal found 9/14$166
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Fri 10/109:38 pmIAD - IAH
1 stop14h 09mFrontier
Wed 10/158:37 pmIAH - IAD
1 stop21h 30mFrontier
Deal found 9/15$167
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Thu 10/306:00 amIAD - IAH
1 stop12h 01mFrontier
Sun 11/211:33 amIAH - IAD
1 stop9h 36mFrontier
Deal found 9/15$168

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 September 16, 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

Sat 10/25

10:18 pm-12:32 am

Nonstop3h 14m

Houston George Bush Intcntl

Mon 10/27

7:50 pm-11:44 pm

Nonstop2h 54m

$147

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Wed 10/8

8:30 am-10:52 am

Nonstop3h 22m

Houston George Bush Intcntl

Sat 10/11

7:50 pm-11:51 pm

Nonstop3h 01m

$147

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Sat 2/14

5:35 pm-8:19 pm

Nonstop3h 44m

Houston George Bush Intcntl

Sat 2/21

6:25 pm-10:26 pm

Nonstop3h 01m

$147

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Mon 11/24

10:10 pm-12:29 am

Nonstop3h 19m

Houston George Bush Intcntl

Tue 12/2

6:14 pm-10:15 pm

Nonstop3h 01m

$178

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Thu 11/13

8:30 am-11:04 am

Nonstop3h 34m

Houston George Bush Intcntl

Sun 11/16

7:50 pm-11:44 pm

Nonstop2h 54m

$187

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Tue 3/10

8:25 am-10:35 am

Nonstop3h 10m

Houston George Bush Intcntl

Wed 3/11

7:59 pm-11:51 pm

Nonstop2h 52m

$227

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Tue 3/10

7:00 am-12:27 pm

1 stop6h 27m

Houston George Bush Intcntl

Wed 3/11

1:15 pm-9:13 pm

1 stop6h 58m

$237

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Mon 11/24

5:03 pm-10:24 pm

1 stop6h 21m

Houston George Bush Intcntl

Fri 12/5

3:10 pm-11:08 pm

1 stop6h 58m

$237

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Tue 10/21

12:40 pm-5:22 pm

1 stop5h 42m

Houston George Bush Intcntl

Tue 10/28

4:50 pm-8:51 pm

Nonstop3h 01m

$264

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Sun 11/23

7:49 pm-11:40 am

1 stop16h 51m

Houston George Bush Intcntl

Thu 12/4

4:12 pm-12:16 am

1 stop7h 04m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 23 results
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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 September 12, 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 September 16, 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 31% versus a flight at noon.

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 September 14, 2025.

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

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 September 16, 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
7,957 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

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
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

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
7,957 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

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!
Spirit Airlines
6.3
Okay
8,019 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

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
5.8
Fair
3,174 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

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.

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

    For as low as $147, United Airlines can have you in Houston George Bush Intcntl Airport from Washington, D.C. Dulles Intl Airport in 3h 14m. There are 1188 mi between Washington, D.C. Dulles Intl Airport and Houston George Bush Intcntl Airport. Generally, flights for this route are nonstop.

  • 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, Spirit Airlines ($91), Frontier ($152), and American Airlines ($234) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport. These flights start at 74% lower than the current average price 3 months from now.

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

    Consider Air China (88%), Avianca (80%) or United Airlines (80%) 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 $1,191, our data indicates the cheapest price to be $118. The most popular route (Washington, D.C. Dulles Intl - Houston George Bush Intcntl), is priced around $143.

  • 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 Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Montgomery
Spring
Jersey Village
Humble
The Woodlands
Conroe
Tomball
Katy
Cypress

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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$91Average$150FlexibilityNo cancel feeOn-time65%
FrontierCheapest$152Average$208FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$234Average$312FlexibilityNo cancel feeOn-time71%
DeltaCheapest$240Average$345FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$255Average$374FlexibilityNo cancel feeOn-time69%

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