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 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 53% 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.

$77+ Cheap Flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

Q: 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 Thursday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

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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

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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 August, booked 44 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	$141 (Kiwi.com)
One-way from	$77 (Trip.com)
Popular in	May
Cheapest in	September
Average price	$322
Good round-trip deal	$535 or less
Good one-way deal	$198 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. 5% potential increase in price ($23 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 September 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 September 11, 2025.

Tue 9/305:00 pmIAH - IAD

1 stop25h 55mMultiple Airlines

Tue 10/79:00 amIAD - IAH

1 stop14h 23mMultiple Airlines

Deal found 9/10

$141

Sat 10/1812:35 pmIAH - IAD

1 stop9h 54mFrontier

Sun 10/198:02 pmIAD - IAH

1 stop12h 02mFrontier

Deal found 9/11

$142

Sat 9/275:46 pmIAH - IAD

1 stop5h 09mFrontier

Sun 10/57:14 pmIAD - IAH

1 stop20h 50mFrontier

Deal found 9/10

$143

Wed 9/174:36 pmIAH - IAD

1 stop24h 48mFrontier

Sun 9/2110:09 pmIAD - IAH

1 stop18h 30mFrontier

Deal found 9/10

$144

Thu 9/256:05 amIAH - IAD

1 stop5h 50mMultiple Airlines

Sat 10/47:00 amIAD - IAH

1 stop16h 30mMultiple Airlines

Deal found 9/10

$145

Tue 9/1610:30 amIAH - IAD

1 stop8h 25mFrontier

Fri 9/193:15 pmIAD - IAH

1 stop19h 39mFrontier

Deal found 9/9

$146

Thu 10/26:05 amIAH - IAD

1 stop5h 50mFrontier

Sat 10/47:00 amIAD - IAH

1 stop11h 01mFrontier

Deal found 9/9

$147

Wed 10/12:55 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Wed 10/810:18 pmIAD - IAH

Nonstop3h 12mUnited Airlines

Deal found 9/10

$149

Fri 11/75:56 pmIAH - IAD

1 stop5h 15mFrontier

Sun 11/95:29 pmIAD - IAH

1 stop5h 34mFrontier

Deal found 9/10

$150

Fri 9/195:47 pmIAH - IAD

1 stop5h 28mFrontier

Mon 9/221:55 pmIAD - IAH

1 stop8h 58mFrontier

Deal found 9/10

$151

Sat 9/275:46 pmIAH - IAD

1 stop5h 09mFrontier

Fri 10/36:10 amIAD - IAH

1 stop11h 51mFrontier

Deal found 9/10

$152

Wed 9/2410:30 amIAH - IAD

1 stop8h 25mFrontier

Sat 10/47:00 amIAD - IAH

1 stop11h 01mFrontier

Deal found 9/10

$153

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 September 11, 2025.

Wed 10/222:55 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Sun 10/268:35 amIAD - IAH

Nonstop3h 29mUnited Airlines

Deal found 9/10

$165

Tue 11/411:49 amIAH - IAD

1 stop6h 36mDelta

Thu 11/136:00 amIAD - IAH

1 stop5h 51mDelta

Deal found 9/10

$237

Fri 10/106:05 pmIAH - IAD

Nonstop3h 01mUnited Airlines

Sun 10/126:01 amIAD - IAH

Nonstop3h 15mUnited Airlines

Deal found 9/9

$215

Thu 10/25:45 amIAH - IAD

1 stop4h 55mDelta

Sun 10/56:00 amIAD - IAH

1 stop5h 23mDelta

Deal found 9/10

$237

Sat 10/187:50 pmIAH - IAD

Nonstop3h 02mUnited Airlines

Wed 10/2210:45 amIAD - IAH

Nonstop3h 16mUnited Airlines

Deal found 9/10

$229

Fri 12/123:10 pmIAH - IAD

1 stop6h 58mDelta

Sun 12/147:01 amIAD - IAH

1 stop5h 26mDelta

Deal found 9/10

$237

Wed 10/87:50 pmIAH - IAD

Nonstop3h 01mUnited Airlines

Tue 10/146:01 amIAD - IAH

Nonstop3h 15mUnited Airlines

Deal found 9/10

$229

Fri 10/33:16 pmIAH - IAD

1 stop6h 50mDelta

Mon 10/66:05 amIAD - IAH

1 stop5h 30mDelta

Deal found 9/10

$237

Fri 10/177:50 pmIAH - IAD

Nonstop3h 01mUnited Airlines

Sun 10/196:01 amIAD - IAH

Nonstop3h 16mUnited Airlines

Deal found 9/10

$234

Tue 10/144:21 pmIAH - IAD

1 stop5h 57mDelta

Sat 10/186:00 amIAD - IAH

1 stop5h 06mDelta

Deal found 9/11

$237

Fri 10/107:50 pmIAH - IAD

Nonstop3h 01mUnited Airlines

Mon 10/136:01 amIAD - IAH

Nonstop3h 16mUnited Airlines

Deal found 9/11

$235

Mon 10/277:50 pmIAH - IAD

Nonstop2h 54mUnited Airlines

Fri 10/3110:10 pmIAD - IAH

Nonstop3h 19mUnited Airlines

Deal found 9/11

$257

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 September 11, 2025 and is based on user searches.

Wed 9/174:36 pmIAH - IAD

1 stop24h 48mFrontier

Sun 9/2110:09 pmIAD - IAH

1 stop18h 30mFrontier

Deal found 9/10

$144

Fri 9/195:47 pmIAH - IAD

1 stop5h 28mFrontier

Mon 9/221:55 pmIAD - IAH

1 stop8h 58mFrontier

Deal found 9/10

$151

Tue 9/2310:30 amIAH - IAD

1 stop8h 25mFrontier

Fri 10/36:10 amIAD - IAH

1 stop11h 51mFrontier

Deal found 9/10

$154

Wed 9/2410:30 amIAH - IAD

1 stop8h 25mFrontier

Sat 10/47:00 amIAD - IAH

1 stop11h 01mFrontier

Deal found 9/10

$153

Thu 9/256:05 amIAH - IAD

1 stop5h 50mMultiple Airlines

Tue 10/79:00 amIAD - IAH

1 stop14h 23mMultiple Airlines

Deal found 9/10

$145

Sat 9/275:46 pmIAH - IAD

1 stop5h 09mFrontier

Sun 10/57:14 pmIAD - IAH

1 stop20h 50mFrontier

Deal found 9/10

$143

Sat 9/275:46 pmIAH - IAD

1 stop5h 09mFrontier

Fri 10/36:10 amIAD - IAH

1 stop11h 51mFrontier

Deal found 9/10

$152

Tue 9/305:00 pmIAH - IAD

1 stop25h 55mMultiple Airlines

Tue 10/79:00 amIAD - IAH

1 stop14h 23mMultiple Airlines

Deal found 9/10

$141

Tue 10/78:05 amIAH - IAD

1 stop10h 41mFrontier

Fri 10/103:10 pmIAD - IAH

1 stop18h 50mFrontier

Deal found 9/11

$150

Wed 10/82:55 pmIAH - IAD

Nonstop3h 08mUnited Airlines

Wed 10/156:01 amIAD - IAH

Nonstop3h 15mUnited Airlines

Deal found 9/11

$149

Sat 10/1812:35 pmIAH - IAD

1 stop9h 54mFrontier

Sun 10/198:02 pmIAD - IAH

1 stop12h 02mFrontier

Deal found 9/11

$142

Fri 10/241:32 pmIAH - IAD

1 stop5h 36mFrontier

Fri 10/315:34 pmIAD - IAH

1 stop5h 32mFrontier

Deal found 9/10

$146

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 September 11, 2025.

Wed 10/110:30 amIAH - IAD

1 stop8h 25mFrontier

Deal found 9/11

$77

Sat 10/118:00 pmIAH - IAD

1 stop17h 25mFrontier

Deal found 9/10

$78

Fri 9/195:47 pmIAH - IAD

1 stop5h 28mFrontier

Deal found 9/10

$79

Mon 10/277:49 amIAH - IAD

1 stop12h 49mFrontier

Deal found 9/11

$82

Wed 9/1710:30 amIAH - IAD

1 stop8h 25mFrontier

Deal found 9/10

$83

Sun 11/1611:33 amIAH - IAD

1 stop9h 36mFrontier

Deal found 9/10

$85

Tue 9/307:31 pmIAH - IAD

2 stops23h 24mMultiple Airlines

Deal found 9/10

$86

Fri 10/310:49 amIAH - IAD

2 stops35h 07mMultiple Airlines

Deal found 9/9

$90

Mon 10/206:05 pmIAH - IAD

Nonstop3h 01mUnited Airlines

Deal found 9/10

$91

Fri 9/266:05 amIAH - IAD

1 stop5h 50mFrontier

Deal found 9/10

$96

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

Wed 10/22

2:55 pm-7:03 pm

Nonstop3h 08m

Washington, D.C. Dulles Intl

Sun 10/26

8:35 am-11:04 am

Nonstop3h 29m

$165

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 10/10

6:05 pm-10:06 pm

Nonstop3h 01m

Washington, D.C. Dulles Intl

Sun 10/12

6:01 am-8:16 am

Nonstop3h 15m

$215

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Sat 10/18

7:50 pm-11:52 pm

Nonstop3h 02m

Washington, D.C. Dulles Intl

Wed 10/22

10:45 am-1:01 pm

Nonstop3h 16m

$229

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 10/8

7:50 pm-11:51 pm

Nonstop3h 01m

Washington, D.C. Dulles Intl

Tue 10/14

6:01 am-8:16 am

Nonstop3h 15m

$229

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 10/17

7:50 pm-11:51 pm

Nonstop3h 01m

Washington, D.C. Dulles Intl

Sun 10/19

6:01 am-8:17 am

Nonstop3h 16m

$234

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 10/10

7:50 pm-11:51 pm

Nonstop3h 01m

Washington, D.C. Dulles Intl

Mon 10/13

6:01 am-8:17 am

Nonstop3h 16m

$235

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Tue 11/4

11:49 am-7:25 pm

1 stop6h 36m

Washington, D.C. Dulles Intl

Thu 11/13

6:00 am-10:51 am

1 stop5h 51m

$237

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Thu 10/2

5:45 am-11:40 am

1 stop4h 55m

Washington, D.C. Dulles Intl

Sun 10/5

6:00 am-10:23 am

1 stop5h 23m

$237

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 12/12

3:10 pm-11:08 pm

1 stop6h 58m

Washington, D.C. Dulles Intl

Sun 12/14

7:01 am-11:27 am

1 stop5h 26m

$237

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Fri 10/3

3:16 pm-11:06 pm

1 stop6h 50m

Washington, D.C. Dulles Intl

Mon 10/6

6:05 am-10:35 am

1 stop5h 30m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 24 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

Prices

Airlines

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 44 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 $292). Flying from Houston George Bush Intcntl Airport 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 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 29% 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 Friday at noon 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.

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,960 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

7,960 reviews

Delta

8.0

Very good

7,960 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

8,937 reviews

Delta

8.0

Very good

7,960 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

7,960 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

8,023 reviews

Delta

8.0

Very good

7,960 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

3,177 reviews

Delta

8.0

Very good

7,960 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 George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?
Airlines like United Airlines fly from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport in about 3h 08m. The time it takes to get you to your destination is usually consistent. Houston George Bush Intcntl Airport and Washington, D.C. Dulles Intl Airport are separated by a distance of 1188 mi. All flights are typically nonstop.
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 Spirit Airlines. Our recent data shows that you can find tickets from as low as $98 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $190 and $234 round-trip. Spirit Airlines is priced at 73% lower than the current average price of a flight leaving 3 months from now.
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 (77%), United Airlines (76%), Brussels Airlines( 75%).
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 $118. While the most popular route (Houston George Bush Intcntl - Washington, D.C. Dulles Intl) can be booked for $143 on average, our data indicates $977 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 $292). Flying from Houston George Bush Intcntl Airport 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.

See more FAQs

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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$98	Average$205	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$190	Average$318	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$234	Average$313	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$236	Average$343	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$249	Average$414	FlexibilityNo cancel fee	On-time69%

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$77+ 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 10/1. 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 August, booked 44 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

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from George Bush Intcntl to Dulles Intl

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 September 11, 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 September 11, 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?

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?

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

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

Reviews of airlines servicing Dulles Intl

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.

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

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

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?

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

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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 September 11, 2025.