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

United Airlines, Delta, and American Airlines can get you from Houston to Washington, D.C. Dulles Intl Airport in just under 3h 08m. Your travel time can differ by up to 2h 27m. Houston and Washington, D.C. Dulles Intl Airport are separated by a distance of 1188 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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 $269. You can even find prices in October for less than $269, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $73. 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 24%.

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.

$74+ Flights from Houston to Washington, D.C. Dulles Intl Airport

Q: How far in advance should I book a flight from Houston to Washington, D.C. Dulles Intl Airport?

To save up to 133% on this flight, we recommend booking at least 55 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Houston to Washington, D.C. Dulles Intl Airport from $234 1-2 weeks out and tickets from $374 for flights departing within the next 72 hours.

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1. Tell us where you want to go

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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 August or June, 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	$74 (United Airlines)
Popular in	November
Cheapest in	August
Average price	$315

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. 14% potential increase in price ($58 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 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 September 15, 2025.

Sat 10/182:10 pmIAH - IAD

1 stop5h 43mFrontier

Sat 10/257:15 amIAD - IAH

1 stop5h 25mFrontier

Deal found 9/14

$143

Mon 9/226:05 amIAH - IAD

1 stop5h 50mFrontier

Wed 9/249:15 amIAD - IAH

1 stop8h 19mFrontier

Deal found 9/15

$144

Tue 10/78:05 amIAH - IAD

1 stop10h 41mFrontier

Wed 10/89:00 amIAD - IAH

1 stop8h 47mFrontier

Deal found 9/13

$145

Thu 10/97:50 pmIAH - IAD

Nonstop3h 01mUnited Airlines

Sat 10/1110:18 pmIAD - IAH

Nonstop3h 12mUnited Airlines

Deal found 9/15

$147

Fri 9/266:05 amIAH - IAD

1 stop5h 50mFrontier

Tue 9/309:15 amIAD - IAH

1 stop8h 19mFrontier

Deal found 9/12

$150

Sat 9/205:46 pmIAH - IAD

1 stop5h 09mFrontier

Sat 9/277:00 amIAD - IAH

1 stop11h 01mFrontier

Deal found 9/13

$151

Thu 10/26:05 amIAH - IAD

1 stop5h 50mFrontier

Mon 10/61:55 pmIAD - IAH

1 stop27h 52mFrontier

Deal found 9/13

$152

Sat 9/205:46 pmIAH - IAD

1 stop5h 09mFrontier

Sun 9/213:15 pmIAD - IAH

1 stop19h 39mFrontier

Deal found 9/13

$154

Fri 10/36:05 amIAH - IAD

1 stop5h 50mFrontier

Mon 10/61:55 pmIAD - IAH

1 stop27h 52mFrontier

Deal found 9/15

$155

Tue 9/3010:30 amIAH - IAD

1 stop8h 25mMultiple Airlines

Tue 10/79:00 amIAD - IAH

1 stop14h 23mMultiple Airlines

Deal found 9/13

$156

Wed 9/2410:30 amIAH - IAD

1 stop8h 25mFrontier

Sun 9/283:15 pmIAD - IAH

1 stop19h 39mFrontier

Deal found 9/15

$157

Sun 9/289:10 pmIAH - IAD

1 stop21h 59mFrontier

Mon 10/67:14 pmIAD - IAH

1 stop16h 33mFrontier

Deal found 9/13

$158

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 September 15, 2025.

Wed 10/152:55 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Sun 10/196:01 amIAD - IAH

Nonstop3h 16mUnited Airlines

Deal found 9/12

$198

Wed 10/156:00 amHOU - IAD

1 stop4h 31mDelta

Wed 10/227:05 amIAD - HOU

1 stop7h 22mDelta

Deal found 9/15

$237

Wed 10/1510:12 amHOU - IAD

1 stop5h 35mAmerican Airlines

Wed 10/226:11 amIAD - HOU

1 stop17h 03mAmerican Airlines

Deal found 9/15

$310

Wed 10/225:45 amHOU - IAD

1 stop9h 15mSouthwest

Wed 11/57:40 amIAD - HOU

1 stop9h 35mSouthwest

Deal found 9/14

$337

Fri 11/146:53 pmHOU - IAD

1 stop4h 25mDelta

Tue 12/27:01 amIAD - HOU

1 stop7h 26mDelta

Deal found 9/15

$237

Fri 1/910:30 amHOU - IAD

1 stop5h 06mDelta

Tue 1/135:25 pmIAD - HOU

1 stop5h 21mDelta

Deal found 9/15

$237

Wed 10/156:00 amHOU - IAD

1 stop7h 38mDelta

Tue 10/215:52 pmIAD - HOU

1 stop6h 08mDelta

Deal found 9/15

$237

Tue 10/145:30 amIAH - IAD

1 stop5h 01mDelta

Sat 10/186:00 amIAD - IAH

1 stop5h 06mDelta

Deal found 9/15

$237

Wed 10/157:50 pmIAH - IAD

Nonstop3h 01mUnited Airlines

Tue 10/218:30 amIAD - IAH

Nonstop3h 22mUnited Airlines

Deal found 9/15

$317

Thu 12/1810:13 amHOU - IAD

1 stop11h 20mAmerican Airlines

Wed 12/245:55 pmIAD - HOU

1 stop15h 37mAmerican Airlines

Deal found 9/13

$320

Sun 10/2610:25 pmHOU - IAD

1 stop13h 35mSouthwest

Wed 10/297:40 amIAD - HOU

1 stop8h 20mSouthwest

Deal found 9/12

$345

Thu 10/309:49 pmIAH - IAD

1 stop12h 36mUnited Airlines

Sun 11/25:00 amIAD - IAH

Nonstop3h 26mUnited Airlines

Deal found 9/12

$321

Last-minute flights from Houston to Dulles Intl
Discover last-minute flight deals from Houston to Dulles Intl. Data last updated September 15, 2025 and is based on user searches.

Sat 9/205:46 pmIAH - IAD

1 stop5h 09mFrontier

Sun 9/213:15 pmIAD - IAH

1 stop19h 39mFrontier

Deal found 9/13

$154

Mon 9/226:05 amIAH - IAD

1 stop5h 50mFrontier

Wed 9/249:15 amIAD - IAH

1 stop8h 19mFrontier

Deal found 9/15

$144

Mon 9/226:05 amIAH - IAD

1 stop5h 50mFrontier

Mon 9/227:14 pmIAD - IAH

1 stop21h 22mFrontier

Deal found 9/15

$151

Wed 9/2410:30 amIAH - IAD

1 stop8h 25mFrontier

Sun 9/283:15 pmIAD - IAH

1 stop19h 39mFrontier

Deal found 9/15

$157

Fri 9/265:47 pmIAH - IAD

1 stop5h 28mFrontier

Fri 10/37:14 pmIAD - IAH

1 stop21h 22mFrontier

Deal found 9/15

$150

Fri 10/36:05 amIAH - IAD

1 stop5h 50mFrontier

Mon 10/61:55 pmIAD - IAH

1 stop27h 52mFrontier

Deal found 9/15

$155

Fri 10/36:05 amIAH - IAD

1 stop5h 50mFrontier

Fri 10/109:38 pmIAD - IAH

1 stop14h 09mFrontier

Deal found 9/15

$167

Tue 10/78:05 amIAH - IAD

1 stop10h 41mFrontier

Wed 10/89:00 amIAD - IAH

1 stop8h 47mFrontier

Deal found 9/14

$145

Thu 10/96:05 amIAH - IAD

1 stop16h 24mFrontier

Sun 10/127:27 pmIAD - IAH

1 stop12h 37mFrontier

Deal found 9/15

$163

Sun 10/127:57 pmIAH - IAD

1 stop21h 48mFrontier

Sun 10/198:02 pmIAD - IAH

1 stop12h 02mFrontier

Deal found 9/14

$152

Fri 10/177:50 pmIAH - IAD

Nonstop3h 01mUnited Airlines

Wed 10/228:30 amIAD - IAH

Nonstop3h 22mUnited Airlines

Deal found 9/15

$147

Sat 10/182:10 pmIAH - IAD

1 stop5h 43mFrontier

Sat 10/257:15 amIAD - IAH

1 stop5h 25mFrontier

Deal found 9/14

$143

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 September 15, 2025.

Tue 10/147:50 pmIAH - IAD

Nonstop3h 01mUnited Airlines

Deal found 9/15

$74

Tue 10/148:05 amIAH - IAD

1 stop10h 41mFrontier

Deal found 9/15

$75

Thu 10/168:37 pmIAH - IAD

1 stop23h 06mFrontier

Deal found 9/14

$78

Mon 9/295:47 pmIAH - IAD

1 stop5h 28mFrontier

Deal found 9/14

$79

Sun 9/219:10 pmIAH - IAD

1 stop21h 59mFrontier

Deal found 9/14

$82

Sat 10/186:05 amIAH - IAD

1 stop16h 24mFrontier

Deal found 9/15

$84

Mon 10/276:05 amIAH - IAD

1 stop8h 34mFrontier

Deal found 9/14

$85

Wed 12/35:15 amIAH - IAD

1 stop16h 04mMultiple Airlines

Deal found 9/14

$86

Fri 11/286:13 pmIAH - IAD

Nonstop2h 59mUnited Airlines

Deal found 9/15

$104

Sat 9/205:46 pmIAH - IAD

1 stop5h 09mFrontier

Deal found 9/14

$107

Thu 11/69:30 amIAH - IAD

2 stops13h 41mMultiple Airlines

Deal found 9/15

$110

Wed 10/297:54 pmIAH - IAD

2 stops26h 35mMultiple Airlines

Deal found 9/14

$112

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

Wed 10/15

2:55 pm-7:03 pm

Nonstop3h 08m

Washington, D.C. Dulles Intl

Sun 10/19

6:01 am-8:17 am

Nonstop3h 16m

$198

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 10/15

6:00 am-11:31 am

1 stop4h 31m

Washington, D.C. Dulles Intl

Wed 10/22

7:05 am-1:27 pm

1 stop7h 22m

$237

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Fri 11/14

6:53 pm-12:18 am

1 stop4h 25m

Washington, D.C. Dulles Intl

Tue 12/2

7:01 am-1:27 pm

1 stop7h 26m

$237

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Fri 1/9

10:30 am-4:36 pm

1 stop5h 06m

Washington, D.C. Dulles Intl

Tue 1/13

5:25 pm-9:46 pm

1 stop5h 21m

$237

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 10/15

6:00 am-2:38 pm

1 stop7h 38m

Washington, D.C. Dulles Intl

Tue 10/21

5:52 pm-11:00 pm

1 stop6h 08m

$237

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Tue 10/14

5:30 am-11:31 am

1 stop5h 01m

Washington, D.C. Dulles Intl

Sat 10/18

6:00 am-10:06 am

1 stop5h 06m

$237

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 10/15

10:12 am-4:47 pm

1 stop5h 35m

Washington, D.C. Dulles Intl

Wed 10/22

6:11 am-10:14 pm

1 stop17h 03m

$310

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 10/15

7:50 pm-11:51 pm

Nonstop3h 01m

Washington, D.C. Dulles Intl

Tue 10/21

8:30 am-10:52 am

Nonstop3h 22m

$317

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 12/18

10:13 am-10:33 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

Wed 12/24

5:55 pm-8:32 am

1 stop15h 37m

$320

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Thu 10/30

9:49 pm-11:25 am

1 stop12h 36m

Washington, D.C. Dulles Intl

Sun 11/2

5:00 am-7:26 am

Nonstop3h 26m

$321

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 45 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, August is the cheapest month in which you can book a flight from Houston to Washington, D.C. Dulles Intl Airport (average of $292). 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.

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

7,954 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

7,954 reviews

Delta

8.0

Very good

7,954 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

8,929 reviews

Delta

8.0

Very good

7,954 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

7,954 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

8,015 reviews

Delta

8.0

Very good

7,954 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

3,172 reviews

Delta

8.0

Very good

7,954 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

How long is the flight from Houston to Washington, D.C. Dulles Intl Airport?
United Airlines, Delta, and American Airlines can get you from Houston to Washington, D.C. Dulles Intl Airport in just under 3h 08m. Your travel time can differ by up to 2h 27m. Houston and Washington, D.C. Dulles Intl Airport are separated by a distance of 1188 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
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 ($175), and United Airlines ($231) offers the cheapest pricing from Houston to Washington, D.C. Dulles Intl Airport. Users have found that Spirit Airlines is 84% cheaper than the other options available to this destination.
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, August is the cheapest month in which you can book a flight from Houston to Washington, D.C. Dulles Intl Airport (average of $292). 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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Silver Spring

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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$175	Average$279	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$231	Average$399	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$234	Average$411	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$236	Average$343	FlexibilityNo cancel fee	On-timeN/A

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$74+ 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 10/14. 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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Cheapflights Tip: The best prices from Houston to Washington, D.C. Dulles Intl are usually found in August or June, 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 September 15, 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 September 15, 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 September 12, 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 September 15, 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.

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.

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

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

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?

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 Houston to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

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 September 15, 2025.