HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Houston

$86+ Cheap flights from Dulles Intl (IAD) to Houston

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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — HOU
Nov 10 — Nov 171
1 adult
Sun 11/10
Sun 11/17
We work with more than 300 partners to bring you better travel deals

...and more

Find cheap flights from Dulles Intl to Houston 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.

The best prices from Washington, D.C. Dulles Intl to Houston are usually found in February or September, booked 87 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Dulles Intl to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Houston (HO1). 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 November 5, 2024.

Popular in

March

Cheapest in

February

Round-trip from

$154
(Mytrip)

One-way from

$86
(Mytrip)
High demand for flights, 21% potential price rise
Search Deals
Best time to find cheap flights, 15% potential price drop
Search Deals
From Washington, D.C. Dulles Intl to Houston
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Houston
Search Deals

Find flight deals from Dulles Intl to Houston

Cheapest flights from Dulles Intl to Houston
Explore the most affordable flight options available from Dulles Intl to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2024.

This Mytrip deal was found by Cheapflights users on 11/4. 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 11/216:40 pmIAD - IAH
1 stop15h 59mFrontier
Sun 11/2410:26 pmIAH - IAD
1 stop8h 56mFrontier
Deal found 11/4$154
This United Airlines deal was found by Cheapflights users on 11/4. 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 12/56:00 amIAD - IAH
Nonstop3h 32mUnited Airlines
Wed 12/117:30 amIAH - IAD
Nonstop3h 01mUnited Airlines
Deal found 11/4$269
This Mytrip deal was found by Cheapflights users on 11/5. 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.
Wed 12/412:55 pmIAD - IAH
3 stops26h 57mMultiple Airlines
Wed 12/115:26 pmIAH - IAD
3 stops21h 29mMultiple Airlines
Deal found 11/5$271
This Delta deal was found by Cheapflights users on 11/4. 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.
Wed 12/412:44 pmIAD - HOU
1 stop6h 21mDelta
Thu 12/56:00 amHOU - IAD
1 stop4h 49mDelta
Deal found 11/4$288
This Delta deal was found by Cheapflights users on 11/4. 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.
Wed 12/49:46 amIAD - IAH
1 stop5h 19mDelta
Wed 12/113:05 pmIAH - IAD
1 stop5h 30mDelta
Deal found 11/4$288
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Tue 11/198:20 amIAD - IAH
1 stop6h 46mAmerican Airlines
Tue 11/264:12 pmIAH - IAD
1 stop5h 40mAmerican Airlines
Deal found 11/5$289
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Sun 12/86:00 amIAD - HOU
1 stop6h 51mAmerican Airlines
Sat 12/1410:15 amHOU - IAD
1 stop4h 56mAmerican Airlines
Deal found 11/4$312
This Southwest deal was found by Cheapflights users on 11/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/136:45 amIAD - HOU
1 stop8h 40mSouthwest
Mon 12/166:25 amHOU - IAD
1 stop7h 35mSouthwest
Deal found 11/5$362
This Sun Country Air deal was found by Cheapflights users on 11/5. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2812:20 pmIAD - HOU
1 stop24h 32mSun Country Air
Sun 12/18:30 amHOU - IAD
1 stop26h 29mSun Country Air
Deal found 11/5$605

Find flights from Dulles Intl to Houston within your budget

Customize your flight search to find flights from Dulles Intl to Houston 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 2,554,862 searches. Data last updated November 5, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Fri 2/7

7:19 pm-11:06 am

1 stop16h 47m

$86

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Tue 1/28

8:25 am-11:52 pm

3 stops16h 27m

$114

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Thu 12/5

6:00 am-8:32 am

Nonstop3h 32m

$135

Washington, D.C.Houston

IAD - HOU

IADHOU

Washington, D.C. Dulles Intl

Thu 12/5

12:44 pm-6:05 pm

1 stop6h 21m

$144

Washington, D.C.Houston

IAD - HOU

IADHOU

Washington, D.C. Dulles Intl

Sun 12/15

6:00 am-11:51 am

1 stop6h 51m

$145

Washington, D.C.Houston

IAD - HOU

IADHOU

Washington, D.C. Dulles Intl

Thu 11/28

12:20 pm-11:52 am

1 stop24h 32m

$178

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Sun 3/2

5:00 pm-11:59 pm

2 stops31h 59m

$218

Washington, D.C.Houston

IAD - HOU

IADHOU

Washington, D.C. Dulles Intl

Sun 12/15

6:45 am-7:25 pm

2 stops13h 40m

$219

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Sat 12/7

5:28 pm-10:16 pm

1 stop5h 48m

$146

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Mon 11/25

6:00 am-11:02 am

1 stop6h 02m

$154

Flights are sorted by cheapest first

Deals found on 11/4

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Dulles Intl to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston 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.

Travel insights for flights from Dulles Intl to Houston

Get recent, data-driven insights about flights from Dulles Intl to Houston including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Houston. Price data was last updated on November 1, 2024.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Houston may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Find deals

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Houston (average of $230). Flying from Washington, D.C. Dulles Intl Airport to Houston in March is currently the most expensive (average of $332). 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 HOU?

Find hourly flight availability from Dulles Intl to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 5, 2024.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Houston is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 22% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Houston. Price data was last updated on June 30, 2024.

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

Find deals

Rainfall in Houston by month

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

In terms of precipitation, rainfall in Houston ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston when rainfall is around 3.2 in.

Temperature in Houston by month

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

If weather is an important factor for your trip to Houston, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated November 5, 2024.
Get a feel of what it's like to fly with Southwest, American Airlines and Delta from Washington, D.C. to Houston by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,082 reviews
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,421 reviews
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,830 reviews
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Qatar Airways
7.5
Good
3,885 reviews
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,215 reviews
Southwest
8.1
Very good
5,082 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

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

  • Can I find flights from Washington, D.C. Dulles Intl Airport to Houston for under $200 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Houston for under $200. The cheapest flight booked recently is on Frontier for just $154, but on average you can expect to pay $315.

  • Are there nonstop flights from Washington, D.C. Dulles Intl Airport to Houston for under $300 on Cheapflights?

    Cheapflights has at least 1 direct flight from Washington, D.C. Dulles Intl Airport to Houston under $300. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to Houston is less than $269.

  • Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Houston for under $300?

    There are currently 9+ open flights from Washington, D.C. Dulles Intl Airport to Houston within the next 7 days for less than $300.

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

    Currently priced at $154, Frontier will fly you from Washington, D.C. Dulles Intl Airport to Houston and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $269 and $288, respectively. These flights start at 59% 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 one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Houston are Frontier ($86), United Airlines ($135), and Delta ($144).

  • What does IAD to HOU mean?

    Great question - IAD to HOU just means Washington, D.C. Dulles Intl Airport to Houston Hobby Airport. Now you’ll know what these unique codes when you look for flights! Houston George Bush Intcntl Airport (IAH), College Station Easterwood Field Airport (CLL), Beaumont Jefferson County Airport (BPT) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from Dulles Intl to Houston that include extra baggage allowance?

    The amount of baggage you can bring on your Dulles Intl to Houston flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Dulles Intl to Houston with specific airlines?

    Yes, Cheapflights allows you to browse and filter Dulles Intl to Houston flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Dulles Intl to Houston that allow pets onboard?

    Many airlines flying from Dulles Intl to Houston offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Dulles Intl to Houston?

    Yes, you can often find last-minute deals on Dulles Intl to Houston flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Washington, D.C. Dulles Intl Airport to Houston flight deals updated?

    The Washington, D.C. Dulles Intl Airport to Houston flight deals you see on this page were last updated on 11/5.

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

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Houston (average of $230). Flying from Washington, D.C. Dulles Intl Airport to Houston in March is currently the most expensive (average of $332). 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

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 Dulles Intl to Houston

See prices for flight routes from nearby airports that may be better suited for you.
Baltimore to Dallas/Fort Worth flights
Dulles Intl to Dallas/Fort Worth flights
Reagan-National to Dallas/Fort Worth flights
Baltimore to Hobby flights
Reagan-National to Hobby flights
Dulles Intl to Hobby flights
Baltimore to George Bush Intcntl flights
Dulles Intl to George Bush Intcntl flights
Dulles Intl to Austin flights
Reagan-National to George Bush Intcntl flights
Baltimore to Austin flights
Reagan-National to Austin flights
Dulles Intl to Love Field flights
Dulles Intl to San Antonio flights
Reagan-National to Love Field flights
Baltimore to Love Field flights
Baltimore to San Antonio flights
Reagan-National to San Antonio flights
Baltimore to El Paso flights
Dulles Intl to El Paso flights
Reagan-National to El Paso flights
Dulles Intl to McAllen flights
Dulles Intl to Corpus Christi flights
Reagan-National to McAllen flights
Baltimore to McAllen flights
Reagan-National to Corpus Christi flights
Baltimore to Harlingen flights
Dulles Intl to Harlingen flights
Baltimore to Corpus Christi flights
Baltimore to Brownsville flights
Reagan-National to Waco flights
Baltimore to Killeen flights
Dulles Intl to Waco flights
Reagan-National to Midland flights
Dulles Intl to Midland flights
Dulles Intl to Killeen flights
Reagan-National to Harlingen flights
Dulles Intl to Lubbock flights
Dulles Intl to Beaumont flights
Baltimore to Waco flights
Baltimore to Longview flights
Reagan-National to Killeen flights
Baltimore to College Station flights
Dulles Intl to Brownsville flights
Reagan-National to Amarillo flights
Dulles Intl to San Angelo flights
Baltimore to Midland flights
Reagan-National to Longview flights
Reagan-National to College Station flights
Baltimore to San Angelo flights

Top 4 airlines flying from Dulles Intl to Houston

Discover the top 4 airlines that operate flights from Dulles Intl to Houston. 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 2,554,862 searches. Data last updated November 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$80Average$183FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$190Average$348FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$235Average$392FlexibilityNo cancel feeOn-time69%
DeltaCheapest$245Average$285FlexibilityNo cancel feeOn-timeN/A
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.
View all available airlines