$115 Find Cheap Flights from Washington Dulles Airport to Houston - Compare and Save

Among airlines operating Washington, D.C. Dulles Intl Airport to Houston flights:

• United Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only United Airlines operates flights between Washington, D.C. Dulles Intl Airport and Houston.

Flights from Washington, D.C. Dulles Intl Airport to Houston usually depart from Washington, D.C. Dulles Intl (IAD) and may arrive at several airports in Houston area, including Houston Hobby (HOU) and Houston George Bush Intcntl (IAH).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• JetBlue: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to Houston:

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $201 round-trip via Miami (MIA), compared to $475 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$80 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

One-stop flights from Washington, D.C. Dulles Intl Airport to Houston most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 89% of one-stop connections
• Charlotte Douglas (CLT) - 4% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 2% of one-stop connections
• Dallas/Fort Worth (DFW) - 2% of one-stop connections

Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 23% on the Washington, D.C. Dulles Intl Airport to Houston route. Thursday is the cheapest departure day at $378 round-trip on average, while Monday is the most expensive at $490, a difference of $112. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Washington, D.C. Dulles Intl Airport to Houston route, 11% of flights were delayed in the past 3 months, with delays averaging 2 hours 42 minutes.

Morning is the busiest departure period on Washington, D.C. Dulles Intl Airport to Houston flights, with 40% of flights leaving in that window. Afternoon departures account for 40%, evening flights for 20%, and night flights for 0%.

Some of the most popular sights in Houston are George R. Brown Convention Center, Daikin Park and Houston Stadium. These are among the most viewed places in Houston on KAYAK.

These are the earliest and latest flight times available from Washington, D.C. Dulles Intl Airport to Houston:

• Earliest: departs at 6:00 am and lands at 9:28 am
• Latest: departs at 10:29 pm and lands at 1:57 am.

The flight takes about 3h 28m.

Last-minute fares on this route - booked within 2 weeks of departure - run 6% above the route average of $427. Book 19 weeks before departure for the lowest fares.

A nonstop flight from Washington, D.C. Dulles Intl Airport to Houston takes 3h 28m, covering 1,199 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

One-way fares from Washington, D.C. Dulles Intl Airport to Houston are currently lower than usual. Average one-way flight prices are about $129, which is 40% below the typical average for this route.

United Airlines is the only airline operating Washington, D.C. Dulles Intl Airport to Houston flights. 89% of its flights are on time.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 5h 51m, compared with 6h 10m via Detroit Metropolitan Wayne County (DTW) and 7h 10m via Charlotte Douglas (CLT).

Houston is 1 hour behind Washington, D.C. Dulles Intl Airport (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Since Houston is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near Houston George Bush Intcntl Airport (IAH) — daily rates from around $3:

• ACO Rent A Car
• Easirent
• America Car Rental
• Hertz
• Thrifty

Near Houston Hobby Airport (HOU) — daily rates from around $20:

• Thrifty
• Dollar
• Alamo
• Hertz
• Budget

Round-trip flights from Washington, D.C. Dulles Intl Airport to Houston range from $286 to $548, with an average of $427 over the past 12 months. Anything below $286 counts as a good deal.

JetBlue is the only airline on the Washington, D.C. Dulles Intl Airport to Houston route offering in-flight Wi-Fi. Pricing depends on fare class.