What are the most reliable airlines from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?

Before booking your flight to Washington, D.C. Dulles Intl Airport from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: Air China (100%), Avianca (85%), United Airlines( 83%).

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

The most popular airlines flying from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.

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

Travelers have found that booking a Thursday departure is the best way to save up to 69% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

Can I find deals for flights from George Bush Intcntl to Dulles Intl that include hotel bookings?

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

How can I find direct flights from George Bush Intcntl to Dulles Intl?

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

Can I find deals for business class flights from George Bush Intcntl to Dulles Intl?

Yes. Cheapflights offers flight deals from George Bush Intcntl 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 George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

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1. Tell us where you want to go

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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.

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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Washington, D.C. Dulles Intl are usually found in September or November, booked 82 days in advance, depart on a Friday or Monday and return on a Friday

Cheap flight deals from George Bush Intcntl to Dulles Intl

Round-trip from	$205 (American Airlines)
One-way from	$101 (Mytrip)
Popular in	May
Cheapest in	September
Average price	$367
Good round-trip deal	$603 or less
Good one-way deal	$349 or less

From Houston George Bush Intcntl to Washington, D.C. Dulles Intl

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

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Highest demand for flights based on searches. 6% potential increase in price ($24 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Price to beat on a round-trip flight from Houston George Bush Intcntl to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from Houston George Bush Intcntl to Washington, D.C. Dulles Intl.

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Find flight deals from George Bush Intcntl to Dulles Intl

Cheapest flights from George Bush Intcntl to Dulles Intl
Explore the most affordable flight options available from George Bush Intcntl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Tue 8/264:41 pmIAH - IAD

1 stop16h 12mAmerican Airlines

Wed 8/2711:51 amIAD - IAH

1 stop5h 48mAmerican Airlines

Deal found 6/12

$205

Wed 9/34:45 pmIAH - IAD

Nonstop3h 07mUnited Airlines

Mon 9/811:03 amIAD - IAH

Nonstop3h 14mUnited Airlines

Deal found 6/10

$217

Sun 8/315:51 pmIAH - IAD

1 stop5h 18mFrontier

Sun 9/75:08 pmIAD - IAH

1 stop5h 55mFrontier

Deal found 6/12

$233

Tue 9/94:00 pmIAH - IAD

1 stop5h 55mDelta

Mon 11/177:50 pmIAD - IAH

1 stop5h 06mDelta

Deal found 6/9

$237

Fri 6/279:33 pmIAH - IAD

1 stop22h 19mMultiple Airlines

Sun 6/2911:12 amIAD - IAH

1 stop10h 26mMultiple Airlines

Deal found 6/12

$238

Best flights from George Bush Intcntl to Dulles Intl
Discover carefully curated flight deals from George Bush Intcntl to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Tue 8/264:41 pmIAH - IAD

1 stop16h 12mAmerican Airlines

Wed 8/2711:51 amIAD - IAH

1 stop5h 48mAmerican Airlines

Deal found 6/12

$205

Wed 9/34:45 pmIAH - IAD

Nonstop3h 07mUnited Airlines

Mon 9/811:03 amIAD - IAH

Nonstop3h 14mUnited Airlines

Deal found 6/10

$217

Sun 8/315:51 pmIAH - IAD

1 stop5h 18mFrontier

Sun 9/75:08 pmIAD - IAH

1 stop5h 55mFrontier

Deal found 6/11

$233

Tue 9/94:00 pmIAH - IAD

1 stop5h 55mDelta

Wed 11/196:00 amIAD - IAH

1 stop6h 04mDelta

Deal found 6/9

$237

Fri 6/279:33 pmIAH - IAD

1 stop22h 19mMultiple Airlines

Sun 6/2911:12 amIAD - IAH

1 stop10h 26mMultiple Airlines

Deal found 6/12

$238

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

Tue 6/175:30 amIAH - IAD

1 stop5h 03mDelta

Sat 6/217:10 amIAD - IAH

1 stop5h 56mDelta

Deal found 6/10

$669

Fri 6/209:33 pmIAH - IAD

1 stop22h 19mMultiple Airlines

Sun 6/2911:12 amIAD - IAH

1 stop10h 26mMultiple Airlines

Deal found 6/10

$286

Fri 6/209:45 amIAH - IAD

Nonstop3h 12mUnited Airlines

Fri 6/205:55 pmIAD - IAH

1 stop15h 52mUnited Airlines

Deal found 6/11

$439

Sat 6/216:00 amIAH - IAD

1 stop8h 16mFrontier

Mon 6/234:24 pmIAD - IAH

1 stop7h 36mFrontier

Deal found 6/12

$268

Sat 6/217:53 amIAH - IAD

2 stops8h 18mAmerican Airlines

Wed 7/26:55 amIAD - IAH

1 stop6h 45mAmerican Airlines

Deal found 6/10

$508

Fri 6/279:33 pmIAH - IAD

1 stop22h 19mMultiple Airlines

Sun 6/2911:12 amIAD - IAH

1 stop10h 26mMultiple Airlines

Deal found 6/12

$238

Tue 7/14:42 pmIAH - IAD

1 stop6h 22mFrontier

Wed 7/26:10 amIAD - IAH

1 stop8h 24mFrontier

Deal found 6/10

$234

Tue 7/15:30 amIAH - IAD

1 stop5h 23mDelta

Tue 7/15:29 pmIAD - IAH

1 stop7h 30mDelta

Deal found 6/10

$364

Wed 7/169:09 amIAH - IAD

1 stop7h 29mAmerican Airlines

Wed 7/168:06 pmIAD - IAH

1 stop4h 56mAmerican Airlines

Deal found 6/10

$211

Tue 7/227:50 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Thu 8/1410:32 pmIAD - IAH

Nonstop3h 13mUnited Airlines

Deal found 6/10

$243

One-way flights from George Bush Intcntl to Dulles Intl
Search for one-way flight options from George Bush Intcntl to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Fri 7/257:26 pmIAH - IAD

1 stop24h 27mMultiple Airlines

Deal found 6/11

$101

Mon 8/251:29 pmIAH - IAD

1 stop6h 19mFrontier

Deal found 6/9

$104

Wed 8/136:10 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Deal found 6/10

$109

Wed 8/133:16 pmIAH - IAD

1 stop6h 39mDelta

Deal found 6/10

$119

Tue 9/27:15 amIAH - IAD

1 stop14h 41mAmerican Airlines

Deal found 6/12

$142

Mon 9/85:59 pmIAH - IAD

2 stops29h 21mAlaska Airlines

Deal found 6/10

$252

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston George Bush Intcntl Airport 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

Tue 8/26

4:41 pm-9:53 am

1 stop16h 12m

Washington, D.C. Dulles Intl

Wed 8/27

11:51 am-4:39 pm

1 stop5h 48m

$205

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 9/3

4:45 pm-8:52 pm

Nonstop3h 07m

Washington, D.C. Dulles Intl

Mon 9/8

11:03 am-1:17 pm

Nonstop3h 14m

$217

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Sun 8/31

5:51 pm-12:09 am

1 stop5h 18m

Washington, D.C. Dulles Intl

Sun 9/7

5:08 pm-10:03 pm

1 stop5h 55m

$233

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Tue 9/9

4:00 pm-10:55 pm

1 stop5h 55m

Washington, D.C. Dulles Intl

Wed 11/19

6:00 am-11:04 am

1 stop6h 04m

$237

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 6/27

9:33 pm-8:52 pm

1 stop22h 19m

Washington, D.C. Dulles Intl

Sun 6/29

11:12 am-8:38 pm

1 stop10h 26m

$238

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 7/25

7:26 pm-8:53 pm

1 stop24h 27m

$101

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Mon 8/25

1:29 pm-8:48 pm

1 stop6h 19m

$104

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 8/13

6:10 pm-10:18 pm

Nonstop3h 08m

$109

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 8/13

3:16 pm-10:55 pm

1 stop6h 39m

$119

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Tue 9/2

7:15 am-10:56 pm

1 stop14h 41m

$142

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 11 results

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

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

Airports

IAH

Check the IAH website for security wait times to ensure a smooth departure. Both standard and TSA PreCheck lines are available.

IAD

Use the Washington Metro Silver Line for a cost-effective trip to downtown D.C. from IAD, taking less than 40 minutes.

Our travel experts

Evie Carrick

Expert on IAH

Ramsey Qubein

Expert on IAD

Best time to book a flight from George Bush Intcntl to Dulles Intl

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

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

The price you pay for your flight from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Houston George Bush Intcntl Airport 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 IAH to IAD?

It’s optimal to fly from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport in the evening. By choosing this option you can save up to 40% on the cost of your flight, compared to a flight in the morning.

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

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

Weekly flight availability from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

The most flights from IAH to IAD are scheduled on a Tuesday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

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

Read through reviews of airlines operating flights from Houston to Washington, D.C., such as Alaska Airlines, Delta and United Airlines. Reviews also offer insight into each airline's 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.

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.

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.

American Airlines

7.2

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.

Frontier

5.9

Fair

3,295 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 George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport round-trip?
Our cheapest airline available from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport is American Airlines. Our recent data shows that you can find tickets from as low as $205 on this airline. Additional options worth looking into are United Airlines and Frontier, starting at $217 and $233 round-trip. American Airlines is priced at 44% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Houston George Bush Intcntl Airport 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 $104. Users have also found prices from $109 and $119 on United Airlines and Delta, respectively.
What are the most reliable airlines from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?
Before booking your flight to Washington, D.C. Dulles Intl Airport from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: Air China (100%), Avianca (85%), United Airlines( 83%).
What are the cheapest flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?
Looking at all options, your cheapest flight can be booked for $134. While the most popular route (Houston George Bush Intcntl - Washington, D.C. Dulles Intl) can be booked for $217 on average our data indicates $2,490 when flying from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport.
Can I find deals for flights from George Bush Intcntl to Dulles Intl that include hotel bookings?
Yes. In addition to deals on George Bush Intcntl to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from George Bush Intcntl to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Dulles Intl.
Can I find deals for business class flights from George Bush Intcntl to Dulles Intl?
Yes. Cheapflights offers flight deals from George Bush Intcntl 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 George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Houston George Bush Intcntl Airport 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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Tysons

Silver Spring

Linthicum Heights

Fredericksburg

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Fairfax

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Easton

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Springfield

Manassas

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from George Bush Intcntl to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$106	Average$205	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$161	Average$318	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$234	Average$348	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$240	Average$343	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$249	Average$380	FlexibilityNo cancel fee	On-time69%

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$101+ Cheap flights from George Bush Intcntl (IAH) 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 George Bush Intcntl 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 George Bush Intcntl to Washington, D.C. Dulles Intl are usually found in September or November, booked 82 days in advance, depart on a Friday or Monday and return on a Friday

Cheap flight deals from George Bush Intcntl to Dulles Intl

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Cheapest flights from George Bush Intcntl to Dulles IntlExplore the most affordable flight options available from George Bush Intcntl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from George Bush Intcntl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

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

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

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

Airports

IAH

IAD

Our travel experts

Best time to book a flight from George Bush Intcntl to Dulles Intl

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Dulles Intl. Price data was last updated on June 9, 2025.

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

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

Find hourly flight availability from George Bush Intcntl 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 June 12, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Dulles Intl. Price data was last updated on June 8, 2025.

Weekly flight availability from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

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

Read through reviews of airlines operating flights from Houston to Washington, D.C., such as Alaska Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

What are the most reliable airlines from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?

What are the cheapest flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from George Bush Intcntl to Dulles Intl that include hotel bookings?

How can I find direct flights from George Bush Intcntl to Dulles Intl?

Can I find deals for business class flights from George Bush Intcntl to Dulles Intl?

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

Traveling to a place near Houston George Bush Intcntl Airport?

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Alternative routes for George Bush Intcntl to Dulles Intl

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Top 5 airlines flying from George Bush Intcntl to Dulles Intl

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Cheapest flights from George Bush Intcntl to Dulles Intl
Explore the most affordable flight options available from George Bush Intcntl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.