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Cheap flights from Houston George Bush Intcntl Airport to Washington, D.C. from $135

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston George Bush Intcntl Airport to Washington, D.C. departing on 8/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Houston George Bush Intcntl Airport to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:23 pm - 12:47 pm
IAH
-
IAD
16h 24m
1 stop
Frontier Logo
8:33 pm - 7:20 am
IAD
-
IAH
11h 47m
1 stop
$287Frontier
Mon, Jul 20 - Wed, Jul 29
Frontier Logo
5:09 pm - 7:09 pm
IAH
-
IAD
25h 00m
1 stop
Frontier Logo
8:00 pm - 10:24 am
IAD
-
IAH
15h 24m
1 stop
$292Frontier
Mon, Oct 12 - Fri, Oct 16
Frontier Logo
6:00 am - 5:14 pm
IAH
-
IAD
10h 14m
1 stop
Frontier Logo
10:45 am - 10:14 pm
IAD
-
IAH
12h 29m
2 stops
$293Frontier
Sat, Aug 22 - Mon, Aug 24
Frontier Logo
9:58 pm - 7:38 pm
IAH
-
IAD
20h 40m
2 stops
Frontier Logo
9:50 am - 12:27 pm
IAD
-
IAH
27h 37m
1 stop
$294Frontier
Mon, Aug 3 - Mon, Aug 10
Frontier Logo
12:21 pm - 7:09 pm
IAH
-
IAD
5h 48m
1 stop
Frontier Logo
9:16 pm - 7:29 am
IAD
-
IAH
11h 13m
1 stop
$296Frontier
Tue, Oct 6 - Thu, Oct 8
Frontier Logo
8:50 am - 4:40 pm
IAH
-
IAD
6h 50m
1 stop
Frontier Logo
12:28 pm - 10:29 pm
IAD
-
IAH
11h 01m
2 stops
$297Frontier
Thu, Jul 30 - Wed, Aug 5
Frontier Logo
8:50 am - 4:40 pm
IAH
-
IAD
6h 50m
1 stop
Frontier Logo
6:09 pm - 10:39 pm
IAD
-
IAH
29h 30m
2 stops
$298Frontier
Thu, Jul 23 - Mon, Jul 27
Frontier Logo
8:43 pm - 8:20 am
IAH
-
IAD
10h 37m
1 stop
Frontier Logo
6:09 pm - 10:39 pm
IAD
-
IAH
29h 30m
2 stops
$299Frontier
Thu, Jul 23 - Mon, Jul 27
Frontier Logo
8:55 am - 4:40 pm
IAH
-
IAD
6h 45m
1 stop
Frontier Logo
6:20 am - 10:47 am
IAD
-
IAH
5h 27m
1 stop
$300Frontier
Sun, Aug 16 - Thu, Aug 20
Frontier Logo
8:43 pm - 8:20 am
IAH
-
IAD
10h 37m
1 stop
Frontier Logo
8:33 pm - 7:20 am
IAD
-
IAH
11h 47m
1 stop
$301Frontier
Sun, Jul 19 - Mon, Aug 10

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Frontier flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

Our best Frontier deals on Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Jul 20
IAH7:23 pmHouston George Bush Intcntl
16h 24m
1 stop
IAD12:47 pmWashington, D.C. Dulles Intl
Jul 29
IAD8:33 pmWashington, D.C. Dulles Intl
11h 47m
1 stop
IAH7:20 amHouston George Bush Intcntl
$287
Frontier
Oct 12
IAH5:09 pmHouston George Bush Intcntl
25h 00m
1 stop
IAD7:09 pmWashington, D.C. Dulles Intl
Oct 16
IAD8:00 pmWashington, D.C. Dulles Intl
15h 24m
1 stop
IAH10:24 amHouston George Bush Intcntl
$292
Frontier
Aug 22
IAH6:00 amHouston George Bush Intcntl
10h 14m
1 stop
IAD5:14 pmWashington, D.C. Dulles Intl
Aug 24
IAD10:45 amWashington, D.C. Dulles Intl
12h 29m
2 stops
IAH10:14 pmHouston George Bush Intcntl
$293

United Airlines flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Sep 14
IAH7:50 pmHouston George Bush Intcntl
3h 05m
IAD11:55 pmWashington, D.C. Dulles Intl
Oct 20
IAD6:15 amWashington, D.C. Dulles Intl
3h 12m
IAH8:27 amHouston George Bush Intcntl
$312
United Airlines
Aug 1
IAH8:20 pmHouston George Bush Intcntl
3h 11m
IAD12:31 amWashington, D.C. Dulles Intl
Aug 3
IAD10:20 pmWashington, D.C. Dulles Intl
3h 25m
IAH12:45 amHouston George Bush Intcntl
$313
United Airlines
Aug 11
IAH7:50 pmHouston George Bush Intcntl
3h 05m
IAD11:55 pmWashington, D.C. Dulles Intl
Aug 12
IAD10:29 pmWashington, D.C. Dulles Intl
3h 16m
IAH12:45 amHouston George Bush Intcntl
$339

momondo Fare Finder

 
Customize your flight search to find flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 7, 2026.
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

Cheapest round-trip

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Mon 7/20

7:23 pm-12:47 pm

1 stop16h 24m

Washington, D.C. Dulles Intl

Wed 7/29

8:33 pm-7:20 am

1 stop11h 47m

$287

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Mon 10/12

5:09 pm-7:09 pm

1 stop25h 00m

Washington, D.C. Dulles Intl

Fri 10/16

8:00 pm-10:24 am

1 stop15h 24m

$292

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Sat 8/22

6:00 am-5:14 pm

1 stop10h 14m

Washington, D.C. Dulles Intl

Mon 8/24

10:45 am-10:14 pm

2 stops12h 29m

$293

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Mon 8/3

9:58 pm-7:38 pm

2 stops20h 40m

Washington, D.C. Dulles Intl

Mon 8/10

9:50 am-12:27 pm

1 stop27h 37m

$294

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Tue 10/6

12:21 pm-7:09 pm

1 stop5h 48m

Washington, D.C. Dulles Intl

Thu 10/8

9:16 pm-7:29 am

1 stop11h 13m

$296

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Thu 7/30

8:50 am-4:40 pm

1 stop6h 50m

Washington, D.C. Dulles Intl

Wed 8/5

12:28 pm-10:29 pm

2 stops11h 01m

$297

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Thu 7/23

8:50 am-4:40 pm

1 stop6h 50m

Washington, D.C. Dulles Intl

Mon 7/27

6:09 pm-10:39 pm

2 stops29h 30m

$298

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Thu 7/23

8:43 pm-8:20 am

1 stop10h 37m

Washington, D.C. Dulles Intl

Mon 7/27

6:09 pm-10:39 pm

2 stops29h 30m

$299
Quickest round-trip

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Sun 8/16

8:55 am-4:40 pm

1 stop6h 45m

Washington, D.C. Dulles Intl

Thu 8/20

6:20 am-10:47 am

1 stop5h 27m

$300

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Sun 7/19

8:43 pm-8:20 am

1 stop10h 37m

Washington, D.C. Dulles Intl

Mon 8/10

8:33 pm-7:20 am

1 stop11h 47m

$301

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Houston George Bush Intcntl Airport and Washington, D.C. Dulles Intl Airport?

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, August is the cheapest month to fly from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $307. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of August, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $324.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Houston George Bush Intcntl Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $873 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,119 on average. Flights to Washington, D.C. Dulles Intl Airport from Houston George Bush Intcntl Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Houston George Bush Intcntl to Washington, D.C. Dulles Intl flight route?

Fly from Houston George Bush Intcntl to Washington, D.C. Dulles Intl for the best Houston George Bush Intcntl - Washington, D.C. Dulles Intl flight prices

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $448 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Houston George Bush Intcntl Airport for as low as $141 on momondo.

What cabin class options are available on Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport flights?

There are 4 cabin classes available to choose from on Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport.

How have Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of July 2026, prices for Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 13% cheaper when compared to flights at the same time last year.

When to book flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport (IAH to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

Best Price Found

$281

Fastest flight time

3h 03m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Houston George Bush Intcntl Airport in the past 72 hours is $281. The best round-trip flight deal from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $615.
The fastest flight from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport takes 3h 03m
Direct flights go from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

Frequently asked questions about flying from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

  • How far is Houston George Bush Intcntl to Washington, D.C. Dulles Intl by plane?

    The straight-line distance from Houston George Bush Intcntl to Washington, D.C. Dulles Intl is 1188.5 mi. Typically, this will take 3h 03m by plane in normal conditions.

  • When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport refresh daily.

  • How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $113Free CancellationRating
5.6
2,841 reviews
Search Frontier flights
United AirlinesPriceFrom $278Free CancellationRating
7.4
9,945 reviews
Search United Airlines flights

  • United Airlines Flights From Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport

    United Airlines operates around 31 flights from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport every week. The average price of these flights found in the last 72 hours has been $479, but momondo users have found United Airlines deals from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport from as low as $278 round-trip. United Airlines has been scored 7.4/10 in 9,945 reviews.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
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Why use momondo?

Why should I use momondo to find a flight deal from Houston to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Houston.

Can I find flights from Houston to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Houston to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Houston to Washington, D.C.?

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Houston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Houston to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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