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

According to our current data, Spirit Airlines ($54), Frontier ($180), and American Airlines ($234) offers the cheapest pricing from Houston to Washington, D.C. Dulles Intl Airport. Users have found that Spirit Airlines is 85% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Houston 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 $84. Users have also found prices from $106 and $119 on Southwest and Delta, respectively.

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.

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).

What are the most popular airlines that fly from Houston to Washington, D.C. Dulles Intl Airport?

Before booking your flight from Houston to Washington, D.C. Dulles Intl Airport check out the most popular airlines for this route: American Airlines, Frontier or Spirit Airlines.

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

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 49% when planning your travel around this day of the week.

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

The best pricing can be found in the month of October. Prices to Washington, D.C. Dulles Intl Airport from Houston average $277. You can even find prices in October for less than $277, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $72. The month of March appears to be one of the more expensive times to travel to Washington, D.C. Dulles Intl Airport from Houston. Flying in the targeted month can save you up to 20%.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Houston 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.

$84+ Flights from Houston to Washington, D.C. Dulles Intl Airport

Q: How much does it cost to fly round-trip from Houston to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment. Houston to Washington, D.C. Dulles Intl Airport flights typically cost between $248 and $499 in September. The cheapest round-trip price found within the last 3 days was $143 on Frontier (Sep 6-Sep 7).

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Find cheap flights from Houston 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 to Washington, D.C. Dulles Intl are usually found in June or August, booked 67 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Houston to Dulles Intl

Round-trip from	$143 (Gotogate)
One-way from	$84 (Mytrip)
Popular in	November
Cheapest in	June
Average price	$313

From Houston to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Houston to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($48 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

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Find flight deals from Houston to Dulles Intl

Cheapest flights from Houston to Dulles Intl
Explore the most affordable flight options available from Houston to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Sat 9/205:46 pmIAH - IAD

1 stop5h 09mFrontier

Fri 9/267:14 pmIAD - IAH

1 stop21h 22mFrontier

Deal found 8/14

$143

Fri 9/511:39 amIAH - IAD

1 stop5h 40mFrontier

Sat 10/117:15 amIAD - IAH

1 stop5h 25mFrontier

Deal found 8/14

$144

Fri 9/511:39 amIAH - IAD

1 stop5h 40mFrontier

Thu 10/164:40 pmIAD - IAH

1 stop6h 23mFrontier

Deal found 8/14

$150

Thu 9/411:44 amIAH - IAD

1 stop5h 40mFrontier

Sun 9/71:55 pmIAD - IAH

1 stop8h 57mFrontier

Deal found 8/14

$153

Sat 10/118:00 pmIAH - IAD

1 stop17h 25mFrontier

Sat 10/187:15 amIAD - IAH

1 stop5h 25mFrontier

Deal found 8/14

$155

Tue 9/910:30 amIAH - IAD

1 stop8h 25mFrontier

Thu 10/166:15 amIAD - IAH

1 stop11h 32mFrontier

Deal found 8/14

$156

Wed 10/86:05 pmIAH - IAD

Nonstop3h 01mUnited Airlines

Sat 10/116:01 amIAD - IAH

Nonstop3h 15mUnited Airlines

Deal found 8/14

$157

Fri 9/55:47 pmIAH - IAD

1 stop5h 28mFrontier

Tue 10/149:00 amIAD - IAH

1 stop8h 47mFrontier

Deal found 8/14

$158

Tue 9/910:30 amIAH - IAD

1 stop8h 25mFrontier

Fri 10/104:45 pmIAD - IAH

1 stop6h 18mFrontier

Deal found 8/14

$159

Sat 10/46:02 amIAH - IAD

1 stop16h 53mFrontier

Sun 10/57:14 pmIAD - IAH

1 stop20h 50mFrontier

Deal found 8/14

$160

Wed 9/2410:30 amIAH - IAD

1 stop8h 25mFrontier

Mon 9/291:55 pmIAD - IAH

1 stop8h 58mFrontier

Deal found 8/14

$161

Fri 9/55:47 pmIAH - IAD

1 stop5h 28mFrontier

Mon 10/134:45 pmIAD - IAH

1 stop6h 18mFrontier

Deal found 8/14

$162

Best flights from Houston to Dulles Intl
Discover carefully curated flight deals from Houston to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Sun 9/149:10 pmIAH - IAD

1 stop21h 59mFrontier

Sun 9/2110:09 pmIAD - IAH

1 stop18h 30mFrontier

Deal found 8/14

$143

Wed 9/173:05 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Sat 9/204:10 pmIAD - IAH

Nonstop3h 18mUnited Airlines

Deal found 8/12

$157

Fri 11/75:10 amHOU - IAD

1 stop7h 00mSouthwest

Wed 11/127:40 amIAD - HOU

1 stop9h 35mSouthwest

Deal found 8/13

$194

Mon 9/296:37 pmHOU - IAD

1 stop4h 36mDelta

Wed 10/16:00 amIAD - HOU

1 stop4h 49mDelta

Deal found 8/13

$237

Thu 10/305:50 pmIAH - IAD

1 stop5h 16mFrontier

Fri 10/315:08 pmIAD - IAH

1 stop5h 55mFrontier

Deal found 8/14

$143

Wed 10/87:50 pmIAH - IAD

Nonstop3h 01mUnited Airlines

Sat 10/116:01 amIAD - IAH

Nonstop3h 15mUnited Airlines

Deal found 8/12

$157

Wed 9/1010:30 amIAH - IAD

1 stop8h 25mFrontier

Sun 9/1410:09 pmIAD - IAH

1 stop18h 35mFrontier

Deal found 8/13

$143

Thu 9/116:05 amIAH - IAD

1 stop5h 50mFrontier

Thu 9/181:55 pmIAD - IAH

1 stop8h 57mFrontier

Deal found 8/13

$143

Fri 10/35:47 pmIAH - IAD

1 stop5h 28mFrontier

Sun 10/124:40 pmIAD - IAH

1 stop6h 23mFrontier

Deal found 8/13

$143

Wed 9/1010:30 amIAH - IAD

1 stop8h 25mFrontier

Wed 9/179:15 amIAD - IAH

1 stop8h 19mFrontier

Deal found 8/14

$143

Sat 9/204:36 pmIAH - IAD

1 stop24h 38mFrontier

Mon 9/226:10 amIAD - IAH

1 stop11h 51mFrontier

Deal found 8/14

$143

Wed 9/101:05 pmHOU - IAD

1 stop4h 44mDelta

Wed 9/176:00 amIAD - HOU

1 stop4h 49mDelta

Deal found 8/13

$237

Last-minute flights from Houston to Dulles Intl
Discover last-minute flight deals from Houston to Dulles Intl. Data last updated August 14, 2025 and is based on user searches.

Tue 8/198:45 amIAH - IAD

1 stop11h 49mFrontier

Tue 8/269:30 amIAD - IAH

1 stop12h 23mFrontier

Deal found 8/12

$182

Tue 8/198:45 amIAH - IAD

1 stop11h 49mFrontier

Thu 8/216:10 amIAD - IAH

1 stop11h 46mFrontier

Deal found 8/14

$186

Tue 8/198:45 amIAH - IAD

1 stop11h 49mFrontier

Sat 8/236:10 amIAD - IAH

1 stop11h 29mFrontier

Deal found 8/14

$188

Tue 8/198:45 amIAH - IAD

1 stop11h 49mFrontier

Sun 8/246:33 pmIAD - IAH

1 stop24h 04mFrontier

Deal found 8/14

$201

Tue 8/1910:22 amHOU - IAD

1 stop7h 27mDelta

Tue 8/267:22 amIAD - HOU

1 stop5h 48mDelta

Deal found 8/12

$547

Wed 8/208:45 amIAH - IAD

1 stop11h 54mFrontier

Sat 8/235:37 pmIAD - IAH

1 stop6h 19mFrontier

Deal found 8/13

$167

Wed 8/208:45 amIAH - IAD

1 stop11h 54mFrontier

Mon 8/255:37 pmIAD - IAH

1 stop5h 49mFrontier

Deal found 8/13

$190

Wed 8/2010:14 amHOU - IAD

1 stop7h 42mAmerican Airlines

Sun 8/316:27 amIAD - HOU

1 stop8h 24mAmerican Airlines

Deal found 8/11

$549

Thu 8/216:05 amIAH - IAD

1 stop9h 25mFrontier

Mon 8/255:37 pmIAD - IAH

1 stop5h 49mFrontier

Deal found 8/14

$166

Thu 8/216:05 amIAH - IAD

1 stop9h 25mFrontier

Sun 8/246:33 pmIAD - IAH

1 stop24h 04mFrontier

Deal found 8/14

$183

Fri 8/226:05 amIAH - IAD

1 stop9h 25mFrontier

Sun 8/246:33 pmIAD - IAH

1 stop24h 04mFrontier

Deal found 8/14

$181

Sat 8/237:10 amIAH - IAD

1 stop8h 20mFrontier

Tue 8/269:30 amIAD - IAH

1 stop12h 23mFrontier

Deal found 8/12

$205

One-way flights from Houston to Dulles Intl
Search for one-way flight options from Houston to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Sat 10/118:00 pmIAH - IAD

1 stop17h 25mFrontier

Deal found 8/14

$84

Mon 8/255:56 pmIAH - IAD

1 stop5h 20mFrontier

Deal found 8/14

$88

Wed 8/278:45 amIAH - IAD

1 stop11h 54mFrontier

Deal found 8/14

$89

Sat 8/237:10 amIAH - IAD

1 stop8h 20mFrontier

Deal found 8/13

$91

Tue 8/268:45 amIAH - IAD

1 stop11h 54mFrontier

Deal found 8/14

$94

Thu 10/96:05 amIAH - IAD

1 stop8h 34mFrontier

Deal found 8/14

$95

Sun 9/147:20 amIAH - IAD

Nonstop3h 08mUnited Airlines

Deal found 8/14

$96

Tue 8/198:45 amIAH - IAD

1 stop11h 49mFrontier

Deal found 8/12

$97

Sat 10/186:05 amIAH - IAD

1 stop8h 21mFrontier

Deal found 8/13

$98

Thu 8/215:51 pmIAH - IAD

1 stop5h 25mFrontier

Deal found 8/13

$99

Thu 11/65:50 pmIAH - IAD

1 stop5h 16mFrontier

Deal found 8/13

$100

Mon 9/85:47 pmIAH - IAD

1 stop5h 28mFrontier

Deal found 8/13

$102

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Sun 9/14

9:10 pm-8:09 pm

1 stop21h 59m

Washington, D.C. Dulles Intl

Sun 9/21

10:09 pm-3:39 pm

1 stop18h 30m

$143

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Thu 10/30

5:50 pm-12:06 am

1 stop5h 16m

Washington, D.C. Dulles Intl

Fri 10/31

5:08 pm-10:03 pm

1 stop5h 55m

$143

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 9/10

10:30 am-7:55 pm

1 stop8h 25m

Washington, D.C. Dulles Intl

Sun 9/14

10:09 pm-3:44 pm

1 stop18h 35m

$143

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Thu 9/11

6:05 am-12:55 pm

1 stop5h 50m

Washington, D.C. Dulles Intl

Thu 9/18

1:55 pm-9:52 pm

1 stop8h 57m

$143

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 10/3

5:47 pm-12:15 am

1 stop5h 28m

Washington, D.C. Dulles Intl

Sun 10/12

4:40 pm-10:03 pm

1 stop6h 23m

$143

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 9/10

10:30 am-7:55 pm

1 stop8h 25m

Washington, D.C. Dulles Intl

Wed 9/17

9:15 am-4:34 pm

1 stop8h 19m

$143

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Sat 9/20

4:36 pm-6:14 pm

1 stop24h 38m

Washington, D.C. Dulles Intl

Mon 9/22

6:10 am-5:01 pm

1 stop11h 51m

$143

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 10/3

5:47 pm-12:15 am

1 stop5h 28m

Washington, D.C. Dulles Intl

Mon 10/6

1:55 pm-9:53 pm

1 stop8h 58m

$143

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Sun 9/7

5:47 pm-12:15 am

1 stop5h 28m

Washington, D.C. Dulles Intl

Sat 10/11

7:15 am-11:40 am

1 stop5h 25m

$144

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Mon 9/8

6:05 am-12:55 pm

1 stop5h 50m

Washington, D.C. Dulles Intl

Sun 10/12

4:40 pm-10:03 pm

1 stop6h 23m

$144

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 44 results

...

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

Cheapflights partnered with top experts to bring you the best recommendations for your Houston to Washington, D.C. Dulles Intl Airport trip

Airports

IAH

Check security wait times on the IAH website to save time before your flight.

IAD

Use the Washington Metro Silver Line for a cheap, 40-minute ride to downtown from IAD.

Our travel experts

Evie Carrick

Expert on IAH

Ramsey Qubein

Expert on IAD

Best time to book a flight from Houston to Dulles Intl

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

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

To ensure you get the cheapest price possible for a flight from Houston to Washington, D.C. Dulles Intl Airport, you should look to book at least 67 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, July is the cheapest month in which you can book a flight from Houston to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Houston 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 HOU to IAD?

It’s optimal to fly from Houston to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight in the morning.

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

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

How much does it cost to fly round-trip from Houston to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with Delta, United Airlines, and American Airlines from Houston to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,980 reviews

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

7,980 reviews

Delta

8.0

Very good

7,980 reviews

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

8,916 reviews

Delta

8.0

Very good

7,980 reviews

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

7,980 reviews

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

8,046 reviews

Delta

8.0

Very good

7,980 reviews

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

3,217 reviews

Delta

8.0

Very good

7,980 reviews

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

What are the cheapest airlines flying from Houston to Washington, D.C. Dulles Intl Airport round-trip?
According to our current data, Spirit Airlines ($54), Frontier ($180), and American Airlines ($234) offers the cheapest pricing from Houston to Washington, D.C. Dulles Intl Airport. Users have found that Spirit Airlines is 85% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Houston 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 $84. Users have also found prices from $106 and $119 on Southwest and Delta, respectively.
Can I find deals for flights from Houston to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Houston to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Houston to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Dulles Intl.
Can I find deals for business class flights from Houston to Dulles Intl?
Yes. Cheapflights offers flight deals from Houston 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 to Washington, D.C. Dulles Intl Airport?
Currently, July is the cheapest month in which you can book a flight from Houston to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Houston 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.

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Top 5 airlines flying from Houston to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$54	Average$235	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$180	Average$279	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$234	Average$411	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$236	Average$383	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$236	Average$343	FlexibilityNo cancel fee	On-timeN/A

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$84+ Cheap flights from Houston 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Houston to Dulles Intl with Cheapflights

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3. Compare prices and book

Cheapflights Tip: The best prices from Houston to Washington, D.C. Dulles Intl are usually found in June or August, booked 67 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Houston to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Houston to Dulles Intl

Cheapest flights from Houston to Dulles IntlExplore the most affordable flight options available from Houston to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Houston to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston to Washington, D.C. Dulles Intl Airport that are best for you.

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

Cheapflights partnered with top experts to bring you the best recommendations for your Houston to Washington, D.C. Dulles Intl Airport trip

Airports

IAH

IAD

Our travel experts

Best time to book a flight from Houston to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Houston with our price prediction graph.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Houston to Dulles Intl. Price data was last updated on August 8, 2025.

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

What is the cheapest time of day to fly from HOU to IAD?

Find hourly flight availability from Houston 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 August 14, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Houston to Dulles Intl. Price data was last updated on December 16, 2024.

How much does it cost to fly round-trip from Houston to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with Delta, United Airlines, and American Airlines from Houston to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Houston 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 to Washington, D.C. Dulles Intl Airport round-trip?

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Houston to Dulles Intl

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Top 5 airlines flying from Houston to Dulles Intl

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Cheapest flights from Houston to Dulles Intl
Explore the most affordable flight options available from Houston to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.