Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights

$118 Find cheap flights from Washington Dulles Airport to Houston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Houston departing on 7/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/29
Sat 7/6

Search hundreds of travel sites at once for deals on flights to Houston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Houston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Houston, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Dulles Intl to Houston (IAD-HOU)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Houston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:05 pm - 12:11 amIAD-IAH
3h 06mnonstop
6:43 pm - 10:45 pmIAH-IAD
3h 02mnonstop
$249United Airlines
Find Deal
Wed, Jul 3 - Fri, Jul 5
6:30 am - 8:39 amIAD-IAH
3h 09mnonstop
6:43 pm - 10:45 pmIAH-IAD
3h 02mnonstop
$262United Airlines
Find Deal
Mon, Aug 12 - Mon, Aug 12
5:35 pm - 11:49 amIAD-IAH
19h 14m3 stops
6:55 am - 7:20 amIAH-IAD
23h 25m2 stops
$264
Find Deal
Wed, Jun 26 - Tue, Jul 2
8:10 pm - 11:58 pmIAD-IAH
4h 48m1 stop
6:05 pm - 12:01 amIAH-IAD
4h 56m1 stop
$265American Airlines
Find Deal
Sat, Jul 13 - Tue, Jul 16
6:00 am - 11:22 amIAD-IAH
6h 22m1 stop
1:25 pm - 7:40 pmIAH-IAD
5h 15m1 stop
$267American Airlines
Find Deal
Tue, Jul 16 - Tue, Jul 23
4:54 pm - 10:20 pmIAD-HOU
6h 26m1 stop
5:08 pm - 12:01 amHOU-IAD
5h 53m1 stop
$268Delta
Find Deal
Sat, Aug 31 - Wed, Sep 4
6:10 am - 10:45 amIAD-IAH
5h 35m1 stop
4:50 pm - 11:03 pmIAH-IAD
5h 13m1 stop
$268Delta
Find Deal
Fri, Jul 5 - Wed, Jul 24
12:55 pm - 8:10 pmIAD-IAH
32h 15m2 stops
6:55 am - 4:10 pmIAH-IAD
32h 15m2 stops
$275
Find Deal
Wed, Jul 3 - Tue, Jul 9
1:05 pm - 8:48 pmIAD-HOU
8h 43m1 stop
6:00 pm - 1:10 pmHOU-IAD
18h 10m1 stop
$295Sun Country Air
Find Deal
Sat, Jul 13 - Mon, Jul 15
1:43 pm - 4:51 pmIAD-HOU
28h 08m1 stop
8:21 pm - 11:26 amHOU-IAD
14h 05m1 stop
$315Sun Country Air
Find Deal
Sun, Jun 16 - Wed, Jun 19

Flights from Dulles Intl to Houston - Travel Insights & Trends

Get data-powered insights and trends into flights from Dulles Intl to Houston to help you find the cheapest flights, the best time to fly and much more.

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

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from Washington, D.C. Dulles Intl Airport to Houston.
Our data shows that the cheapest route for a one-way flight from Washington, D.C. Dulles Intl Airport to Houston cost $124 and was between Washington, D.C. Dulles Intl Airport and Houston George Bush Intcntl Airport. On average, the best prices are found if you fly this route. The average price for a return flight for this route is $269.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Houston?

The average price of all flights from Washington, D.C. Dulles Intl Airport to Houston clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Houston on a Wednesday and more expensive on a Friday. On your return trip to Washington Dulles Airport, you should consider flying back on a Saturday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. Dulles Intl Airport to Houston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Houston is October, where tickets cost $285 on average. On the other hand, the most expensive months are March and December, where the average cost of tickets is $372 and $368 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. Dulles Intl Airport to Houston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Houston, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 85 days before departure.

Which airlines provide the cheapest flights from Washington Dulles Airport to Houston?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, United Airlines offered the best one-way deal for that route, at $125. KAYAK users also found Washington Dulles Airport to Houston round-trip flights on United Airlines from $249 and on American Airlines from $265.

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Houston?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Washington, D.C. Dulles Intl Airport to Houston.
There is just one airline that flies from Washington, D.C. Dulles Intl Airport to Houston direct and that is United Airlines. The best one-way deal found from United Airlines for the route is $232.

How many flights are there between Washington, D.C. Dulles Intl Airport and Houston per day?

Each day, there are between 6 and 7 nonstop flights that take off from Washington, D.C. Dulles Intl Airport and land in Houston, with an average flight time of 3h 11m. The most common departure time is 6:00 am and most flights take off in the morning, while the most flights land at Houston George Bush Intcntl Airport. Each week, there are 46 flights. The most frequent day of departure is Friday, when 15% of all weekly flights depart. The fewest flights depart on a Tuesday.

Which cabin class options are there for flights between Washington, D.C. Dulles Intl Airport and Houston?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Washington Dulles Airport to Houston take?

There are no direct flights for this route. The shortest travel duration to get to Houston from Washington Dulles Airport is 3h 06m.

Good to know

Cheapest flight

$118
Flight from Washington Dulles Airport to Houston George Bush Airport

When to book flights from Dulles Intl to Houston

Are your dates flexible? Find out the best times to travel from Dulles Intl to Houston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Houston flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Houston?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Houston was $118 for a one-way ticket and $249 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Houston?

    Yes

  • Which airports will I be using when flying from Washington Dulles Airport to Houston?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at one of these airports: Houston Hobby or Houston George Bush Intcntl.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Houston?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Houston?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Houston, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Houston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Houston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Houston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Houston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Houston with an airline and back to Washington Dulles Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Houston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Houston from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Washington Dulles Airport to Houston?

Find which airlines fly direct from Dulles Intl to Houston, which days they fly and book direct flights.

Nonstop departures

Washington, D.C. Dulles Intl to Houston

Monday

Air New Zealand, Avianca, Brussels Airlines, +3 more

Air New Zealand, Avianca, +4 more

Tuesday

Air China, Air New Zealand, Avianca, +4 more

Air China, Air New Zealand, +5 more

Wednesday

Air New Zealand, Avianca, Brussels Airlines, +3 more

Air New Zealand, Avianca, +4 more

Thursday

Air New Zealand, Avianca, Brussels Airlines, +3 more

Air New Zealand, Avianca, +4 more

Friday

Air New Zealand, Avianca, Brussels Airlines, +3 more

Air New Zealand, Avianca, +4 more

Saturday

Air China, Air New Zealand, Avianca, +4 more

Air China, Air New Zealand, +5 more

Sunday

Air New Zealand, Avianca, Brussels Airlines, +3 more

Air New Zealand, Avianca, +4 more

See more direct flights

Nonstop returns

Houston to Washington, D.C. Dulles Intl

Monday

Air New Zealand, Avianca, Brussels Airlines, +3 more

Air New Zealand, Avianca, +4 more

Tuesday

Air China, Air New Zealand, Avianca, +4 more

Air China, Air New Zealand, +5 more

Wednesday

Air New Zealand, Avianca, Brussels Airlines, +3 more

Air New Zealand, Avianca, +4 more

Thursday

Air New Zealand, Avianca, Brussels Airlines, +3 more

Air New Zealand, Avianca, +4 more

Friday

Air New Zealand, Avianca, Brussels Airlines, +3 more

Air New Zealand, Avianca, +4 more

Saturday

Air China, Air New Zealand, Avianca, +4 more

Air China, Air New Zealand, +5 more

Sunday

Air New Zealand, Avianca, Brussels Airlines, +3 more

Air New Zealand, Avianca, +4 more

See more direct flights
See more direct flights

Book cheap flights from Washington, D.C. to Houston

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Houston found on KAYAK in the last 72 hours.
7/30Tue
3 stops
18h 35mIAD-IAH
$118
6/24Mon
2 stops
16h 23mIAD-IAH
$124
7/2Tue
nonstopUnited Airlines
3h 08mIAD-IAH
$125
8/12Mon
1 stopAmerican Airlines
7h 48mIAD-IAH
$133
6/26Wed
1 stopDelta
7h 14mIAD-HOU
$134
7/2Tue
1 stopDelta
5h 36mIAD-IAH
$134
9/24Tue
2 stopsAmerican Airlines
11h 48mIAD-IAH
$138
6/22Sat
nonstopUnited Airlines
3h 06mIAD-IAH
$145
7/1Mon
1 stopSun Country Air
25h 47mIAD-HOU
$158
7/7Sun
1 stopSun Country Air
29h 38mIAD-HOU
$208

Search by stops

Search by airline

Search by price

Last minute flights from Dulles Intl to Houston

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Houston that are departing in the next 10 days.
6/4Tue
multi-stop
25h 57mIAD-IAH
6/5Wed
multi-stop
25h 12mIAH-IAD
$382
6/4Tue
multi-stop
22h 45mIAD-IAH
6/5Wed
multi-stop
25h 12mIAH-IAD
$406
6/4Tue
multi-stopAmerican Airlines
4h 58mIAD-IAH
6/11Tue
multi-stopAmerican Airlines
5h 02mIAH-IAD
$457
6/1Sat
multi-stopAmerican Airlines
5h 42mIAD-IAH
6/8Sat
multi-stopAmerican Airlines
4h 59mIAH-IAD
$477
6/3Mon
multi-stopDelta
13h 56mIAD-IAH
6/12Wed
multi-stopDelta
10h 07mIAH-IAD
$557
6/2Sun
nonstopUnited Airlines
3h 18mIAD-IAH
6/14Fri
nonstopUnited Airlines
3h 06mIAH-IAD
$594
6/2Sun
multi-stopUnited Airlines
21h 25mIAD-IAH
6/14Fri
multi-stopUnited Airlines
5h 36mIAH-IAD
$602
6/3Mon
multi-stopDelta
17h 36mIAD-IAH
6/11Tue
multi-stopDelta
12h 02mIAH-IAD
$616
6/4Tue
multi-stopAlaska Airlines
24h 15mIAD-IAH
6/5Wed
multi-stopAlaska Airlines
29h 08mIAH-IAD
$1,488
6/1Sat
multi-stopAlaska Airlines
15h 22mIAD-IAH
6/2Sun
multi-stopAlaska Airlines
29h 08mIAH-IAD
$1,837

Search by stops

Search by airline

Search by price

Washington Dulles Airport - Houston Flights

Departure:

Washington Dulles Airport (IAD)United States

Return flight deals:

Houston - Washington Dulles Airport

Cabin classes:

Browse origins:

Browse destinations: