RM801 Cheap Flights from Houston (IAH) to Washington (IAD)

View RM801 flight on Thu, 29 Jan 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Houston to Washington (IAH-IAD)

Prices were available within the past 7 days and start at RM801 for one-way flights and RM1,594 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 29 Jan - Mon, 2 Feb
IAH
Houston
IAD
Washington
RM1,594 Return, found 3 days ago
RM1,594
Return
found 3 days ago
Select Delta flight, departing Thu, 29 Jan from Houston to Washington, returning Mon, 2 Feb, priced at RM1,594 found 3 days ago
Delta
Thu, 29 Jan - Mon, 2 Feb
IAH
Houston
IAD
Washington
RM1,599 Return, found 3 days ago
RM1,599
Return
found 3 days ago
Select Delta flight, departing Thu, 29 Jan from Houston to Washington, returning Mon, 2 Feb, priced at RM1,599 found 3 days ago
Delta
Thu, 29 Jan - Mon, 2 Feb
IAH
Houston
IAD
Washington
RM1,602 Return, found 3 days ago
RM1,602
Return
found 3 days ago
Select Delta flight, departing Thu, 29 Jan from Houston to Washington, returning Mon, 2 Feb, priced at RM1,602 found 3 days ago
Delta
Thu, 29 Jan - Thu, 5 Feb
IAH
Houston
IAD
Washington
RM1,683 Return, found 3 days ago
RM1,683
Return
found 3 days ago
Select Delta flight, departing Thu, 29 Jan from Houston to Washington, returning Thu, 5 Feb, priced at RM1,683 found 3 days ago
Delta
Thu, 29 Jan - Mon, 2 Feb
IAH
Houston
IAD
Washington
RM1,685 Return, found 3 days ago
RM1,685
Return
found 3 days ago
Select Delta flight, departing Thu, 29 Jan from Houston to Washington, returning Mon, 2 Feb, priced at RM1,685 found 3 days ago
Delta
Thu, 29 Jan - Thu, 5 Feb
IAH
Houston
IAD
Washington
RM1,688 Return, found 3 days ago
RM1,688
Return
found 3 days ago
Select Delta flight, departing Thu, 29 Jan from Houston to Washington, returning Thu, 5 Feb, priced at RM1,688 found 3 days ago
Delta
Thu, 29 Jan - Mon, 2 Feb
IAH
Houston
IAD
Washington
RM1,704 Return, found 3 days ago
RM1,704
Return
found 3 days ago
Select Delta flight, departing Thu, 29 Jan from Houston to Washington, returning Mon, 2 Feb, priced at RM1,704 found 3 days ago
United
Thu, 29 Jan - Mon, 2 Feb
IAH
Houston
IAD
Washington
RM1,705 Return, found 3 days ago
RM1,705
Return
found 3 days ago
Select United flight, departing Thu, 29 Jan from Houston to Washington, returning Mon, 2 Feb, priced at RM1,705 found 3 days ago
Delta
Thu, 29 Jan - Mon, 2 Feb
IAH
Houston
IAD
Washington
RM1,724 Return, found 3 days ago
RM1,724
Return
found 3 days ago
Select Delta flight, departing Thu, 29 Jan from Houston to Washington, returning Mon, 2 Feb, priced at RM1,724 found 3 days ago
American Airlines
Thu, 29 Jan - Mon, 2 Feb
IAH
Houston
IAD
Washington
RM1,781 Return, found 3 days ago
RM1,781
Return
found 3 days ago
Select American Airlines flight, departing Thu, 29 Jan from Houston to Washington, returning Mon, 2 Feb, priced at RM1,781 found 3 days ago

Find the cheapest month to fly from Houston (IAH) to Washington (IAD)

January is typically the cheapest month to fly

From RM 454 - RM 1,294 per traveller.

Frequently asked questions

How much is a flight from Houston Airport to IAD?
Start packing your bags, because round-trip flights between George Bush Intercontinental Airport (IAH) and IAD start from RM1,594. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can increase quickly, so book now to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from IAH to IAD?
Most flights can be cancelled online, but each air carrier has its own set of terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from Houston Airport to IAD that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for George Bush Intercontinental Airport (IAH) to Washington Dulles Intl. Airport (IAD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Houston Airport to Washington Dulles Intl. Airport (IAD)?
It's around 1,900 kilometres between Houston Airport and Washington Dulles Intl. Airport (IAD), so expect to be in your seat for a while. Keep yourself occupied by packing things like your e-reader or the latest bestseller.
Which airlines fly direct from Houston Airport to Washington Dulles Intl. Airport (IAD)?
Flying directly from Houston Airport to IAD is simple with United Airlines (UA). This popular carrier offers 121 flights each month.
Are George Bush Intercontinental Airport (IAH) to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to nab an awesome last-minute deal from Houston Airport to IAD, but it's also possible to miss out entirely! As many airlines release seats up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a bargain. Expedia compares air carrier prices and updates flight deals regularly, so you can be sure you're always seeing the latest offers.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Washington Dulles Intl.
Return price
RM1,594
Distance
1903 km
Average flight time
5 hours 9 mins

Book with confidence

Perfect flights from Houston to Washington

Your Journey from Houston to Washington

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Choosing Your Ideal Flight

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Experience the joy of finding cheap flights from George Bush Intercontinental to Washington Dulles Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from RM801 and roundtrip prices from RM1,594*.
 

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*Note: Prices may vary based on availability and are subject to change.
Perfect flights from Houston to Washington

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