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 $99. Users have also found prices from $126 and $135 on Allegiant Air and Avelo Airlines, respectively.

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, Delta or United 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 $279. You can even find prices in October for less than $279, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $91. 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 27%.

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.

$99+ 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 83% on this flight, we recommend booking at least 19 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 $193 1-2 weeks out and tickets from $371 for flights departing within the next 72 hours.

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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 September or January, 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	$198 (Frontier)
One-way from	$99 (Frontier)
Popular in	November
Cheapest in	September
Average price	$431

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. 6% potential increase in price ($27 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

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 March 31, 2025.

Fri 4/257:09 pmIAH - IAD

1 stop12h 09mFrontier

Sun 4/279:08 amIAD - IAH

1 stop10h 11mFrontier

Deal found 3/30

$198

Wed 5/145:39 pmIAH - IAD

1 stop5h 23mAmerican Airlines

Tue 5/205:02 amIAD - IAH

1 stop5h 12mAmerican Airlines

Deal found 3/31

$217

Fri 8/225:14 pmIAH - IAD

1 stop18h 50mMultiple Airlines

Sun 8/244:56 pmIAD - IAH

1 stop24h 23mMultiple Airlines

Deal found 3/29

$235

Fri 5/2310:40 amHOU - IAD

1 stop8h 37mMultiple Airlines

Mon 5/263:13 pmIAD - HOU

1 stop4h 59mMultiple Airlines

Deal found 3/31

$261

Sat 5/176:05 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Sun 5/186:00 amIAD - IAH

Nonstop3h 25mUnited Airlines

Deal found 3/31

$269

Fri 5/26:45 pmHOU - IAD

1 stop4h 43mDelta

Tue 5/67:35 amIAD - HOU

1 stop7h 18mDelta

Deal found 3/30

$289

Wed 5/215:06 pmIAH - IAD

1 stop5h 29mDelta

Sun 5/257:15 amIAD - IAH

1 stop7h 24mDelta

Deal found 3/30

$289

Thu 6/126:36 pmHOU - IAD

1 stop16h 49mSun Country Air

Sun 6/157:45 amIAD - HOU

1 stop10h 57mSun Country Air

Deal found 3/30

$337

Tue 5/208:05 amHOU - IAD

1 stop8h 50mSouthwest

Wed 5/217:50 amIAD - HOU

2 stops11h 25mSouthwest

Deal found 3/31

$382

Thu 5/85:00 amHOU - IAD

1 stop10h 17mAmerican Airlines

Wed 6/256:27 amIAD - HOU

1 stop8h 29mAmerican Airlines

Deal found 3/30

$386

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 March 31, 2025.

Fri 4/257:09 pmIAH - IAD

1 stop12h 09mFrontier

Mon 4/289:08 amIAD - IAH

1 stop10h 11mFrontier

Deal found 3/30

$198

Fri 8/225:14 pmIAH - IAD

1 stop18h 50mMultiple Airlines

Sun 8/244:56 pmIAD - IAH

1 stop24h 23mMultiple Airlines

Deal found 3/29

$235

Sat 5/176:05 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Sun 5/186:00 amIAD - IAH

Nonstop3h 25mUnited Airlines

Deal found 3/31

$269

Fri 5/26:45 pmHOU - IAD

1 stop4h 43mDelta

Tue 5/67:35 amIAD - HOU

1 stop7h 18mDelta

Deal found 3/30

$289

Fri 5/27:47 amIAH - IAD

1 stop7h 35mAmerican Airlines

Tue 5/61:59 pmIAD - IAH

2 stops8h 41mAmerican Airlines

Deal found 3/30

$294

Thu 6/126:36 pmHOU - IAD

1 stop16h 49mSun Country Air

Sun 6/157:45 amIAD - HOU

1 stop10h 57mSun Country Air

Deal found 3/30

$337

Tue 5/208:05 amHOU - IAD

1 stop8h 50mSouthwest

Wed 5/217:50 amIAD - HOU

2 stops11h 25mSouthwest

Deal found 3/31

$382

Fri 5/2310:40 amHOU - IAD

1 stop8h 37mMultiple Airlines

Mon 5/263:13 pmIAD - HOU

1 stop4h 59mMultiple Airlines

Deal found 3/31

$261

Wed 5/215:06 pmIAH - IAD

1 stop5h 29mDelta

Sun 5/257:15 amIAD - IAH

1 stop7h 24mDelta

Deal found 3/30

$289

Thu 5/85:00 amHOU - IAD

1 stop10h 17mAmerican Airlines

Wed 6/256:27 amIAD - HOU

1 stop8h 29mAmerican Airlines

Deal found 3/30

$386

Last-minute flights from Houston to Dulles Intl
Discover last-minute flight deals from Houston to Dulles Intl. Data last updated March 31, 2025 and is based on user searches.

Sat 4/56:28 pmIAH - IAD

1 stop18h 52mUnited Airlines

Sun 4/65:43 pmIAD - IAH

Nonstop3h 31mUnited Airlines

Deal found 3/30

$484

Sat 4/510:35 amHOU - IAD

1 stop4h 39mDelta

Sun 4/610:06 amIAD - HOU

1 stop4h 40mDelta

Deal found 3/30

$649

Sat 4/51:55 pmHOU - IAD

2 stops9h 15mSouthwest

Sun 4/65:05 pmIAD - HOU

1 stop8h 55mSouthwest

Deal found 3/30

$654

Sun 4/67:47 amIAH - IAD

1 stop4h 55mAmerican Airlines

Tue 4/226:18 amIAD - IAH

1 stop6h 04mAmerican Airlines

Deal found 3/30

$469

Mon 4/78:46 amIAH - IAD

1 stop4h 52mFrontier

Thu 4/249:08 amIAD - IAH

1 stop10h 11mFrontier

Deal found 3/30

$218

Tue 4/85:20 amIAH - IAD

1 stop9h 58mDelta

Mon 4/2110:16 amIAD - IAH

1 stop6h 30mDelta

Deal found 3/30

$438

Tue 4/82:51 pmIAH - IAD

2 stops13h 43mAlaska Airlines

Tue 4/226:42 amIAD - IAH

1 stop12h 27mAlaska Airlines

Deal found 3/30

$1,324

Wed 4/99:14 amHOU - IAD

1 stop6h 09mAmerican Airlines

Mon 4/145:13 pmIAD - HOU

1 stop6h 27mAmerican Airlines

Deal found 3/30

$549

Thu 4/108:02 pmIAH - IAD

3 stops19h 13mMultiple Airlines

Sun 4/1312:55 pmIAD - IAH

3 stops35h 00mMultiple Airlines

Deal found 3/30

$331

Wed 4/1610:18 amHOU - IAD

1 stop5h 05mAmerican Airlines

Tue 4/224:52 pmIAD - HOU

2 stops8h 04mAmerican Airlines

Deal found 3/31

$374

Wed 4/234:00 pmHOU - IAD

1 stop7h 25mDelta

Sat 4/2612:29 pmIAD - HOU

1 stop6h 42mDelta

Deal found 3/30

$289

Thu 4/247:51 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Sun 4/278:25 amIAD - IAH

Nonstop3h 28mUnited Airlines

Deal found 3/31

$269

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 March 31, 2025.

Fri 5/98:27 pmIAH - IAD

1 stop9h 04mFrontier

Deal found 3/30

$99

Wed 4/238:55 pmIAH - IAD

3 stops18h 20mMultiple Airlines

Deal found 3/30

$120

Fri 6/208:30 amHOU - IAD

1 stop4h 53mAllegiant Air

Deal found 3/30

$126

Fri 5/912:10 pmHOU - IAD

1 stop7h 47mAvelo Airlines

Deal found 3/30

$135

Fri 5/96:05 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Deal found 3/31

$135

Wed 4/236:45 pmHOU - IAD

1 stop4h 40mDelta

Deal found 3/30

$145

Fri 5/23:12 pmIAH - IAD

1 stop6h 55mDelta

Deal found 3/30

$145

Sat 5/179:59 amIAH - IAD

2 stops8h 37mAmerican Airlines

Deal found 3/30

$150

Sat 5/310:18 amHOU - IAD

2 stops8h 23mAmerican Airlines

Deal found 3/30

$175

Sat 5/245:54 pmIAH - IAD

2 stops21h 20mAlaska Airlines

Deal found 3/30

$197

Tue 4/1511:30 amHOU - IAD

2 stops10h 05mSouthwest

Deal found 3/31

$230

Thu 5/228:06 pmHOU - IAD

1 stop14h 47mSun Country Air

Deal found 3/30

$238

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

Fri 4/25

7:09 pm-8:18 am

1 stop12h 09m

Washington, D.C. Dulles Intl

Fri 5/2

8:01 am-4:34 pm

1 stop9h 33m

$198

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Fri 5/23

10:40 am-8:17 pm

1 stop8h 37m

Washington, D.C. Dulles Intl

Mon 5/26

3:13 pm-7:12 pm

1 stop4h 59m

$261

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 4/25

6:10 pm-10:19 pm

Nonstop3h 09m

Washington, D.C. Dulles Intl

Mon 4/28

4:00 pm-6:30 pm

Nonstop3h 30m

$269

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Thu 5/8

1:51 pm-8:57 pm

2 stops30h 06m

Washington, D.C. Dulles Intl

Mon 5/12

8:25 am-12:48 pm

3 stops29h 23m

$277

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Fri 5/2

6:45 pm-12:28 am

1 stop4h 43m

Washington, D.C. Dulles Intl

Tue 5/6

7:35 am-1:53 pm

1 stop7h 18m

$289

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 4/30

7:05 am-12:44 pm

1 stop4h 39m

Washington, D.C. Dulles Intl

Mon 5/5

5:32 pm-11:56 pm

1 stop7h 24m

$289

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 5/2

6:18 pm-11:56 pm

1 stop4h 38m

Washington, D.C. Dulles Intl

Tue 5/6

5:02 am-11:48 am

2 stops7h 46m

$294

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 6/12

6:36 pm-12:25 pm

1 stop16h 49m

Washington, D.C. Dulles Intl

Sun 6/15

7:45 am-5:42 pm

1 stop10h 57m

$337

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Tue 5/20

8:05 am-5:55 pm

1 stop8h 50m

Washington, D.C. Dulles Intl

Wed 5/21

7:50 am-6:15 pm

2 stops11h 25m

$382

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 5/8

5:00 am-4:17 pm

1 stop10h 17m

Washington, D.C. Dulles Intl

Wed 6/25

6:27 am-1:56 pm

1 stop8h 29m

$386

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 24 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 Depart tab to manage your time effectively before departure.

IAD

The Silver Line Metro reaches IAD in under 40 minutes, offering a cheap and convenient city connection.

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 $309). Flying from Houston to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $385). 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.

Rainfall in Dulles Intl by month

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.

Temperature in Dulles Intl by month

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).

Reviews of airlines servicing Dulles Intl

To help decide which airline to fly from Houston to Washington, D.C., see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

9,818 reviews

Alaska Airlines

8.0

Very good

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Southwest

8.0

Very good

4,276 reviews

Alaska Airlines

8.0

Very good

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,899 reviews

Alaska Airlines

8.0

Very good

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Avelo Airlines

7.5

Good

Alaska Airlines

8.0

Very good

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Qatar Airways

7.4

Good

3,541 reviews

Alaska Airlines

8.0

Very good

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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, Frontier ($198), United Airlines ($269), and Delta ($289) offers the cheapest pricing from Houston to Washington, D.C. Dulles Intl Airport. Users have found that Frontier is 48% 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 $99. Users have also found prices from $126 and $135 on Allegiant Air and Avelo Airlines, 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, August is the cheapest month in which you can book a flight from Houston to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Houston to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $385). 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

Arlington

Alexandria

Fairfax

Tysons

Springfield

Rockville

Fredericksburg

Woodbridge

Gaithersburg

Linthicum Heights

Silver Spring

Falls Church

Laurel

Easton

Herndon

Sterling

Bowie

Gettysburg

National Harbor

Oxon Hill

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Houston to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$72	Average$191	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$236	Average$357	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$240	Average$370	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$248	Average$394	FlexibilityNo cancel fee	On-time69%

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.

$99+ 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 5/9. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Houston to Washington, D.C. Dulles Intl are usually found in September or January, 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 March 31, 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 March 31, 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 March 28, 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 March 31, 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 June 30, 2024.

Rainfall in Dulles Intl by month

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

Temperature in Dulles Intl by month

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

Reviews of airlines servicing Dulles Intl

To help decide which airline to fly from Houston to Washington, D.C., see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up 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 Houston?

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 4 airlines flying from Houston to Dulles Intl

100% Free

Book with Flexibility

Travel Smart

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 March 31, 2025.