Cheap Flight Tickets from Washington (IAD) to Houston (IAH), Starting at $275

Good to Know: Cheapest and Fastest IAD - IAH Flights

Useful information for finding best airline tickets from Washington Dulles International to George Bush Intercontinental Houston on your next trip.

Cheapest Round Trip Flight

$275

DL Delta Airlines • 1 stop • 9h 11m

Dec 04 – Dec 11

The cheapest round trip flight from Washington to Houston (IAD-IAH-IAD) is currently $275

🔍 Search Flights

Cheapest Direct Flight

$314

UA United Airlines • nonstop • 3h 57m

Dec 04

The cheapest nonstop flight from Washington to Houston (IAD-IAH) is currently $314

🔍 Search Flights

Fastest Flight

3h 57m

The fastest nonstop flight from Washington to Houston (IAD-IAH) takes 3h 57m

Top Airlines Flying from Washington to Houston

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Washington (IAD) to Houston (IAH)

Compare and book low fare round-trip air tickets from Washington to Houston. Ideal for travelers with confirmed return itineraries.

Dec 04 - Dec 11, Economy
DL
Washington → Houston
9h 11m
12:38 PM - 5:29 PM • 1 stop
DL
Washington → Houston
13h 22m
7:00 AM - 4:02 PM • 1 stop
$275
Delta Airlines
Dec 04 - Dec 11, Economy
UA
Washington → Houston
22h 5m
8:35 AM - 9:00 PM • 1 stop
UA
Washington → Houston
5h 3m
2:20 PM - 6:23 PM • nonstop
$309
United Airlines
Dec 04 - Dec 11, Economy
UA
Washington → Houston
5h 35m
8:00 AM - 10:35 AM • nonstop
UA
Washington → Houston
5h 4m
6:40 PM - 10:44 PM • nonstop
$367
United Airlines
Dec 04 - Dec 11, Economy
UA
Washington → Houston
17h 38m
10:20 PM - 9:18 AM • 1 stop
UA
Washington → Houston
28h 27m
6:10 PM - 11:17 AM • 1 stop
$461
United Airlines
Dec 04 - Dec 11, Economy
AA
Washington → Houston
29h
2:42 PM - 8:22 AM • 1 stop
AA
Washington → Houston
10h 1m
12:13 PM - 6:14 PM • 1 stop
$496
American Airlines
Dec 04 - Dec 11, Economy
WN
Washington → Houston
5h 25m
11:40 AM - 2:05 PM • nonstop
WN
Washington → Houston
4h 10m
11:55 AM - 3:45 PM • nonstop
$585
Southwest Airlines

Fly from Washington to Houston with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Washington to Houston? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Washington to Houston Flights

What are the airports in Washington?
IAD,BWI,DCA
What’s the most popular airline flying from IAD to IAH?
The most popular airline flying from Washington to Houston are
Can I fly from IAD to IAH non-stop?
Yes, you can fly IAD to IAH non-stop on
Which airlines fly nonstop between Washington and Houston?
The non-stop flights between Washington and Houston are .
What’s the earliest departure time from IAD to IAH Airport?
The earliest flight leaves IAD at 8:00 am and lands in IAH - George Bush Intercontinental Houston
What are the airports in Houston?
IAH
Can I make changes to my Washington to Houston flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from IAD to IAH?
Read the fare rules of the Washington to Houston air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Washington and Houston?
operate flights between Washington and Houston
How long does a flight from Washington to Houston take?
It takes approximately 3 hour to fly non-stop from IAD to IAH, which is 1190.06 miles by air.
Which airlines provide the cheapest flights from Washington (IAD) to Houston (IAH) ?
In the past couple of days, the cheapest tickets to IAH from IAD were found on UA : USD 461
Do I need a passport to fly between IAD and IAH?
No
What’s the latest departure time from IAD to IAH ?
The last flight leaves IAD at 10:20 pm

Washington (IAD) to Houston (IAH): Airport Information

Origin Airport Washington Dulles International , Washington, US
Destination Airport George Bush Intercontinental Houston , Houston, US
Distance 1190 miles

More Flight Options for Washington (IAD) and Houston (IAH)

Why Fareleaders for IAD to IAH Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Washington to Houston flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on IAD to IAH flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Washington to Houston flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Washington (IAD) to Houston (IAH)
Terms and Conditions*