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

According to our current data, American Airlines ($205), United Airlines ($217), and Frontier ($233) offers the cheapest pricing from Houston to Washington, D.C. Dulles Intl Airport. Users have found that American Airlines is 45% 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 Allegiant Air. According to our data, you can fly for as low as $104. Users have also found prices from $104 and $109 on Frontier and United 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 Frontier.

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 $92. 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.

$101+ 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 131% 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 $231 1-2 weeks out and tickets from $365 for flights departing within the next 72 hours.

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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 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	$205 (American Airlines)
One-way from	$101 (Mytrip)
Popular in	November
Cheapest in	September
Average price	$349

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. 8% potential increase in price ($34 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 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 junio 12, 2025.

mar. 8/264:41 pmIAH - IAD

1 stop16h 12mAmerican Airlines

mié. 8/2711:51 amIAD - IAH

1 stop5h 48mAmerican Airlines

Deal found 6/12

$205

mié. 9/34:45 pmIAH - IAD

Nonstop3h 07mUnited Airlines

lun. 9/811:03 amIAD - IAH

Nonstop3h 14mUnited Airlines

Deal found 6/10

$217

dom. 8/315:51 pmIAH - IAD

1 stop5h 18mFrontier

dom. 9/75:08 pmIAD - IAH

1 stop5h 55mFrontier

Deal found 6/12

$233

mar. 9/98:05 amHOU - IAD

1 stop7h 10mSouthwest

mar. 11/187:40 amIAD - HOU

1 stop9h 35mSouthwest

Deal found 6/9

$237

mar. 9/94:00 pmIAH - IAD

1 stop5h 55mDelta

lun. 11/177:50 pmIAD - IAH

1 stop5h 06mDelta

Deal found 6/9

$237

vie. 6/279:33 pmIAH - IAD

1 stop22h 19mMultiple Airlines

dom. 6/2911:12 amIAD - IAH

1 stop10h 26mMultiple Airlines

Deal found 6/12

$238

jue. 9/251:00 pmHOU - IAD

1 stop7h 13mDelta

sáb. 9/275:25 pmIAD - HOU

1 stop5h 15mDelta

Deal found 6/10

$244

jue. 7/178:40 pmHOU - IAD

1 stop14h 49mSun Country Air

dom. 7/206:00 amIAD - HOU

1 stop12h 06mSun Country Air

Deal found 6/12

$315

lun. 9/224:28 pmHOU - IAD

1 stop5h 21mAmerican Airlines

mar. 9/2311:47 amIAD - HOU

1 stop5h 08mAmerican Airlines

Deal found 6/11

$317

dom. 7/206:06 pmHOU - IAD

1 stop16h 37mMultiple Airlines

jue. 7/249:05 pmIAD - HOU

2 stops22h 08mMultiple Airlines

Deal found 6/10

$321

vie. 8/88:03 pmHOU - IAD

2 stops23h 27mAllegiant Air

dom. 8/109:25 amIAD - HOU

2 stops33h 48mAllegiant Air

Deal found 6/10

$375

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 junio 12, 2025.

mar. 8/264:41 pmIAH - IAD

1 stop16h 12mAmerican Airlines

mié. 8/2711:51 amIAD - IAH

1 stop5h 48mAmerican Airlines

Deal found 6/12

$205

mié. 9/34:45 pmIAH - IAD

Nonstop3h 07mUnited Airlines

lun. 9/811:03 amIAD - IAH

Nonstop3h 14mUnited Airlines

Deal found 6/10

$217

dom. 8/315:51 pmIAH - IAD

1 stop5h 18mFrontier

dom. 9/75:08 pmIAD - IAH

1 stop5h 55mFrontier

Deal found 6/11

$233

mar. 9/98:05 amHOU - IAD

1 stop7h 10mSouthwest

mar. 11/187:40 amIAD - HOU

1 stop9h 35mSouthwest

Deal found 6/9

$237

mar. 9/94:00 pmIAH - IAD

1 stop5h 55mDelta

mié. 11/196:00 amIAD - IAH

1 stop6h 04mDelta

Deal found 6/9

$237

vie. 6/279:33 pmIAH - IAD

1 stop22h 19mMultiple Airlines

dom. 6/2911:12 amIAD - IAH

1 stop10h 26mMultiple Airlines

Deal found 6/12

$238

jue. 7/178:40 pmHOU - IAD

1 stop14h 49mSun Country Air

dom. 7/206:00 amIAD - HOU

1 stop12h 06mSun Country Air

Deal found 6/12

$315

vie. 8/88:03 pmHOU - IAD

2 stops23h 27mAllegiant Air

dom. 8/109:25 amIAD - HOU

2 stops33h 48mAllegiant Air

Deal found 6/10

$375

mar. 8/121:05 pmHOU - IAD

1 stop4h 44mDelta

sáb. 8/165:25 pmIAD - HOU

1 stop6h 06mDelta

Deal found 6/11

$244

dom. 7/206:06 pmHOU - IAD

1 stop16h 37mMultiple Airlines

jue. 7/249:05 pmIAD - HOU

2 stops22h 08mMultiple Airlines

Deal found 6/10

$321

mar. 8/58:58 amHOU - IAD

1 stop12h 48mAmerican Airlines

jue. 8/76:34 amIAD - HOU

2 stops8h 12mAmerican Airlines

Deal found 6/11

$335

Last-minute flights from Houston to Dulles Intl
Discover last-minute flight deals from Houston to Dulles Intl. Data last updated junio 12, 2025 and is based on user searches.

mar. 6/175:30 amIAH - IAD

1 stop5h 03mDelta

sáb. 6/217:10 amIAD - IAH

1 stop5h 56mDelta

Deal found 6/10

$669

mié. 6/1810:40 amHOU - IAD

1 stop6h 45mSouthwest

mié. 6/252:05 pmIAD - HOU

1 stop8h 00mSouthwest

Deal found 6/11

$583

vie. 6/209:33 pmIAH - IAD

1 stop22h 19mMultiple Airlines

dom. 6/2911:12 amIAD - IAH

1 stop10h 26mMultiple Airlines

Deal found 6/10

$286

vie. 6/209:45 amIAH - IAD

Nonstop3h 12mUnited Airlines

vie. 6/205:55 pmIAD - IAH

1 stop15h 52mUnited Airlines

Deal found 6/11

$439

vie. 6/208:30 amHOU - IAD

1 stop4h 53mMultiple Airlines

dom. 6/2212:46 pmIAD - HOU

1 stop29h 14mMultiple Airlines

Deal found 6/10

$499

vie. 6/204:26 pmHOU - IAD

1 stop5h 13mAmerican Airlines

vie. 7/46:27 amIAD - HOU

1 stop8h 31mAmerican Airlines

Deal found 6/11

$503

vie. 6/206:30 pmHOU - IAD

1 stop16h 19mSun Country Air

dom. 6/2212:46 pmIAD - HOU

1 stop29h 14mSun Country Air

Deal found 6/11

$545

sáb. 6/216:00 amIAH - IAD

1 stop8h 16mFrontier

lun. 6/234:24 pmIAD - IAH

1 stop7h 36mFrontier

Deal found 6/12

$268

sáb. 6/217:53 amIAH - IAD

2 stops8h 18mAmerican Airlines

mié. 7/26:55 amIAD - IAH

1 stop6h 45mAmerican Airlines

Deal found 6/10

$508

sáb. 6/2110:00 amHOU - IAD

1 stop5h 38mDelta

jue. 6/266:00 amIAD - HOU

1 stop7h 10mDelta

Deal found 6/11

$589

vie. 6/279:33 pmIAH - IAD

1 stop22h 19mMultiple Airlines

dom. 6/2911:12 amIAD - IAH

1 stop10h 26mMultiple Airlines

Deal found 6/12

$238

lun. 6/308:45 amHOU - IAD

2 stops8h 13mAllegiant Air

dom. 7/69:08 pmIAD - HOU

2 stops22h 05mAllegiant Air

Deal found 6/9

$509

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 junio 12, 2025.

vie. 7/257:26 pmIAH - IAD

1 stop24h 27mMultiple Airlines

Deal found 6/11

$101

vie. 6/208:30 amHOU - IAD

1 stop4h 53mAllegiant Air

Deal found 6/9

$104

lun. 8/251:29 pmIAH - IAD

1 stop6h 19mFrontier

Deal found 6/9

$104

mié. 8/136:10 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Deal found 6/10

$109

mié. 8/1310:44 amHOU - IAD

1 stop4h 46mDelta

Deal found 6/11

$119

mié. 8/133:16 pmIAH - IAD

1 stop6h 39mDelta

Deal found 6/10

$119

mar. 9/27:15 amIAH - IAD

1 stop14h 41mAmerican Airlines

Deal found 6/12

$142

vie. 7/113:25 pmHOU - IAD

1 stop7h 05mSouthwest

Deal found 6/11

$143

dom. 7/206:06 pmHOU - IAD

1 stop16h 37mSun Country Air

Deal found 6/10

$148

lun. 8/186:00 amHOU - IAD

2 stops8h 19mAmerican Airlines

Deal found 6/10

$164

lun. 9/85:59 pmIAH - IAD

2 stops29h 21mAlaska Airlines

Deal found 6/10

$252

vie. 6/206:30 pmHOU - IAD

3 stops25h 22mMultiple Airlines

Deal found 6/10

$465

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

mar. 8/26

4:41 pm-9:53 am

1 stop16h 12m

Washington, D.C. Dulles Intl

mié. 8/27

11:51 am-4:39 pm

1 stop5h 48m

$205

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

mié. 9/3

4:45 pm-8:52 pm

Nonstop3h 07m

Washington, D.C. Dulles Intl

lun. 9/8

11:03 am-1:17 pm

Nonstop3h 14m

$217

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

dom. 8/31

5:51 pm-12:09 am

1 stop5h 18m

Washington, D.C. Dulles Intl

dom. 9/7

5:08 pm-10:03 pm

1 stop5h 55m

$233

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

mar. 9/9

8:05 am-4:15 pm

1 stop7h 10m

Washington, D.C. Dulles Intl

mar. 11/18

7:40 am-4:15 pm

1 stop9h 35m

$237

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

mar. 9/9

4:00 pm-10:55 pm

1 stop5h 55m

Washington, D.C. Dulles Intl

mié. 11/19

6:00 am-11:04 am

1 stop6h 04m

$237

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

vie. 6/27

9:33 pm-8:52 pm

1 stop22h 19m

Washington, D.C. Dulles Intl

dom. 6/29

11:12 am-8:38 pm

1 stop10h 26m

$238

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

mar. 8/12

1:05 pm-6:49 pm

1 stop4h 44m

Washington, D.C. Dulles Intl

sáb. 8/16

5:25 pm-10:31 pm

1 stop6h 06m

$244

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

dom. 7/13

6:18 pm-11:43 am

1 stop16h 25m

Washington, D.C. Dulles Intl

jue. 7/17

6:05 am-7:42 pm

1 stop14h 37m

$295

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

dom. 7/20

6:06 pm-11:43 am

1 stop16h 37m

Washington, D.C. Dulles Intl

jue. 7/24

9:05 pm-6:13 pm

2 stops22h 08m

$321

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

mar. 8/5

8:58 am-10:46 pm

1 stop12h 48m

Washington, D.C. Dulles Intl

jue. 8/7

6:34 am-1:46 pm

2 stops8h 12m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 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 $309). Flying from Houston to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,287 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,950 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Qatar Airways

7.4

Good

3,584 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,790 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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, American Airlines ($205), United Airlines ($217), and Frontier ($233) offers the cheapest pricing from Houston to Washington, D.C. Dulles Intl Airport. Users have found that American Airlines is 45% 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 Allegiant Air. According to our data, you can fly for as low as $104. Users have also found prices from $104 and $109 on Frontier and United 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 July is currently the most expensive (average of $349). 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

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Silver Spring

Linthicum Heights

Fredericksburg

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Easton

Herndon

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Reston

National Harbor

Springfield

Manassas

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Houston to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$49	Average$197	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$161	Average$281	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$233	Average$383	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$234	Average$423	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$240	Average$341	FlexibilityNo cancel fee	On-timeN/A

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$101+ 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 7/25. 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 junio 12, 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 junio 12, 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 June 9, 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 junio 12, 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?

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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 junio 12, 2025.