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Cheap flights from Washington, D.C. Dulles Intl Airport to Houston from $78

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Houston departing on 3/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:10 am - 6:28 pm
IAD
-
IAH
9h 18m
1 stop
Frontier Logo
6:15 am - 4:08 pm
IAH
-
IAD
8h 53m
1 stop
$148Frontier
Thu, Feb 19 - Mon, Feb 23
Frontier Logo
6:20 am - 11:45 am
IAD
-
IAH
6h 25m
1 stop
Frontier Logo
6:00 pm - 12:31 am
IAH
-
IAD
5h 31m
1 stop
$149Frontier
Mon, Mar 9 - Wed, Mar 11
Frontier Logo
6:20 am - 11:45 am
IAD
-
IAH
6h 25m
1 stop
Frontier Logo
6:00 pm - 12:31 am
IAH
-
IAD
5h 31m
1 stop
$150Frontier
Mon, Mar 9 - Wed, Mar 11
Frontier Logo
6:20 am - 5:05 pm
IAD
-
IAH
11h 45m
1 stop
Frontier Logo
5:58 pm - 12:21 am
IAH
-
IAD
5h 23m
1 stop
$152Frontier
Wed, Mar 11 - Wed, Mar 18
Multiple Airlines Logo
11:22 am - 5:12 pm
IAD
-
IAH
6h 50m
1 stop
Multiple Airlines Logo
8:18 pm - 2:18 pm
IAH
-
IAD
17h 00m
2 stops
$164Multiple Airlines
Thu, Feb 19 - Sun, Feb 22
Multiple Airlines Logo
11:22 am - 5:12 pm
IAD
-
IAH
6h 50m
1 stop
Multiple Airlines Logo
8:18 pm - 2:18 pm
IAH
-
IAD
17h 00m
2 stops
$165Multiple Airlines
Thu, Feb 19 - Sun, Feb 22
Southwest Logo
9:05 am - 5:35 pm
IAD
-
HOU
9h 30m
1 stop
Southwest Logo
6:15 am - 4:50 pm
HOU
-
IAD
9h 35m
1 stop
$303Southwest
Wed, Feb 25 - Wed, Mar 4
Southwest Logo
9:05 am - 3:25 pm
IAD
-
HOU
7h 20m
1 stop
Southwest Logo
6:10 am - 4:05 pm
HOU
-
IAD
8h 55m
1 stop
$338Southwest
Tue, Mar 3 - Thu, Mar 5
Delta Logo
5:25 pm - 10:28 pm
IAD
-
HOU
6h 03m
1 stop
Delta Logo
1:06 pm - 6:37 pm
HOU
-
IAD
4h 31m
1 stop
$353Delta
Sat, Feb 21 - Mon, Feb 23
Delta Logo
6:00 am - 10:01 am
IAD
-
HOU
5h 01m
1 stop
Delta Logo
5:19 pm - 12:21 am
HOU
-
IAD
6h 02m
1 stop
$359Delta
Wed, Feb 25 - Fri, Feb 27

American Airlines flights from Washington, D.C. Dulles Intl Airport to Houston

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Houston flight tickets
American Airlines
Feb 17
IAD11:30 amWashington, D.C. Dulles Intl
9h 20m
2 stops
HOU7:50 pmHouston Hobby
Feb 23
HOU10:13 amHouston Hobby
5h 18m
1 stop
IAD4:31 pmWashington, D.C. Dulles Intl
$398
American Airlines
Feb 22
IAD5:00 amWashington, D.C. Dulles Intl
7h 48m
2 stops
HOU11:48 amHouston Hobby
Feb 24
HOU6:00 amHouston Hobby
7h 39m
2 stops
IAD2:39 pmWashington, D.C. Dulles Intl
$420
American Airlines
Mar 8
IAD4:46 pmWashington, D.C. Dulles Intl
8h 12m
2 stops
HOU11:58 pmHouston Hobby
Mar 11
HOU6:00 amHouston Hobby
9h 16m
2 stops
IAD4:16 pmWashington, D.C. Dulles Intl
$440

Southwest flights from Washington, D.C. Dulles Intl Airport to Houston

Our best Southwest deals on Washington, D.C. Dulles Intl Airport to Houston flight tickets
Southwest
Feb 25
IAD9:05 amWashington, D.C. Dulles Intl
9h 30m
1 stop
HOU5:35 pmHouston Hobby
Mar 4
HOU6:15 amHouston Hobby
9h 35m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
$303
Southwest
Mar 3
IAD9:05 amWashington, D.C. Dulles Intl
7h 20m
1 stop
HOU3:25 pmHouston Hobby
Mar 5
HOU6:10 amHouston Hobby
8h 55m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
$338
Southwest
Feb 17
IAD5:40 pmWashington, D.C. Dulles Intl
7h 25m
1 stop
HOU12:05 amHouston Hobby
Feb 24
HOU6:15 amHouston Hobby
9h 35m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
$339

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Houston 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 January 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Thu 2/19

10:10 am-6:28 pm

1 stop9h 18m

Houston George Bush Intcntl

Mon 2/23

6:15 am-4:08 pm

1 stop8h 53m

$148

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Mon 3/9

6:20 am-11:45 am

1 stop6h 25m

Houston George Bush Intcntl

Wed 3/11

6:00 pm-12:31 am

1 stop5h 31m

$149

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Mon 3/9

6:20 am-11:45 am

1 stop6h 25m

Houston George Bush Intcntl

Wed 3/11

6:00 pm-12:31 am

1 stop5h 31m

$150

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Wed 3/11

6:20 am-5:05 pm

1 stop11h 45m

Houston George Bush Intcntl

Wed 3/18

5:58 pm-12:21 am

1 stop5h 23m

$152

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Thu 2/19

11:22 am-5:12 pm

1 stop6h 50m

Houston George Bush Intcntl

Sun 2/22

8:18 pm-2:18 pm

2 stops17h 00m

$164

Washington, D.C.Houston

IAD - IAH

IADIAH

Washington, D.C. Dulles Intl

Thu 2/19

11:22 am-5:12 pm

1 stop6h 50m

Houston George Bush Intcntl

Sun 2/22

8:18 pm-2:18 pm

2 stops17h 00m

$165

Washington, D.C.Houston

IAD - HOU

IADHOU

Washington, D.C. Dulles Intl

Wed 2/25

9:05 am-5:35 pm

1 stop9h 30m

Houston Hobby

Wed 3/4

6:15 am-4:50 pm

1 stop9h 35m

$303

Washington, D.C.Houston

IAD - HOU

IADHOU

Washington, D.C. Dulles Intl

Tue 3/3

9:05 am-3:25 pm

1 stop7h 20m

Houston Hobby

Thu 3/5

6:10 am-4:05 pm

1 stop8h 55m

$338

Washington, D.C.Houston

IAD - HOU

IADHOU

Washington, D.C. Dulles Intl

Sat 2/21

5:25 pm-10:28 pm

1 stop6h 03m

Houston Hobby

Mon 2/23

1:06 pm-6:37 pm

1 stop4h 31m

$353

Washington, D.C.Houston

IAD - HOU

IADHOU

Washington, D.C. Dulles Intl

Wed 2/25

6:00 am-10:01 am

1 stop5h 01m

Houston Hobby

Fri 2/27

5:19 pm-12:21 am

1 stop6h 02m

$359

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 Houston from

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

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 cheapest month to fly to Houston?

The month of October is, on average, the cheapest month to fly to Houston from Washington, D.C. Dulles Intl Airport, with most prices found around $323. The month of November is another great option to travel to Houston, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $327.

What is the cheapest day to depart on your flight to Houston?

On average, the least expensive day to fly to Houston from Washington, D.C. Dulles Intl Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $349. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Houston on Monday is $460.

What is the cheapest time of day to depart on your flight to Houston?

Our data shows that the cheapest Washington, D.C. Dulles Intl Airport to Houston flights are usually those with departure times in the evening. Our users have found flights to Houston in the evening for as low as $412. Try not to purchase tickets in the afternoon because they tend to be around $620. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to Houston?

You are more likely to see cheaper flights to Houston from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $379 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from Washington, D.C. Dulles Intl Airport for as low as $273 on momondo.

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

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

Cheap Washington, D.C. Dulles Intl Airport to Houston flight deals and tips

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

Fastest flight time

3h 06m

Direct flights

Every day

Airports in Houston

2 airports
The fastest flight from Washington, D.C. Dulles Intl Airport to Houston takes 3h 06m
Direct flights go from Washington, D.C. Dulles Intl Airport to Houston every day.
There are 2 airports in Houston. From Washington, D.C. Dulles Intl Airport there are direct flights to Houston George Bush Intcntl (IAH).
Search flight deals

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

    The straight-line distance from Washington, D.C. Dulles Intl to Houston is 1199.1 mi. In terms of flight time, this usually takes a little over 3h 06m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Houston are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Houston.

  • What documentation or ID do you need to fly to Houston?

    The travel and health documents you'll need for your trip to Houston may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Houston. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Houston with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $63Free CancellationRating
6.3
8,394 reviews
Search Spirit Airlines flights
FrontierPriceFrom $100Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,205 reviews
Search American Airlines flights
United AirlinesPriceFrom $254Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
DeltaPriceFrom $257Free CancellationRating
7.9
8,128 reviews
Search Delta flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Houston. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Washington, D.C. to Houston on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Washington, D.C. and Houston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Houston from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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