Washington, D.C.

$63+ Cheap flights from George Bush Intcntl (IAH) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — WAS
Aug 3 — Aug 101
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Washington, D.C. are usually found in October or August, booked 78 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from George Bush Intcntl to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$111
(Kiwi.com)

One-way from

$63
(FlightHub)

Popular in

April

Cheapest in

October

Average price

$270

Good round-trip deal

$135 or less

Good one-way deal

$113 or less
From Houston George Bush Intcntl to Washington, D.C. (WAS)
One-way flight from Houston George Bush Intcntl to Washington, D.C. (WAS)
Highest demand for flights based on searches. 9% potential increase in price ($29 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Houston George Bush Intcntl to Washington, D.C. (WAS).
Price to beat on a one-way flight from Houston George Bush Intcntl to Washington, D.C. (WAS).

Find flight deals from George Bush Intcntl to Washington, D.C.

Cheapest flights from George Bush Intcntl to Washington, D.C.
Explore the most affordable flight options available from George Bush Intcntl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/262:54 pmIAH - BWI
1 stop5h 08mSpirit Airlines
Sun 9/2812:12 pmBWI - IAH
Nonstop3h 27mSpirit Airlines
Deal found 7/29$119
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/308:00 amIAH - BWI
1 stop7h 52mMultiple Airlines
Mon 8/186:30 amBWI - IAH
Nonstop3h 15mMultiple Airlines
Deal found 7/27$157
This Trip.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/127:05 amIAH - IAD
1 stop16h 14mMultiple Airlines
Sat 8/164:07 pmIAD - IAH
1 stop7h 13mMultiple Airlines
Deal found 7/27$162
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:09 amIAH - DCA
Nonstop3h 10mAmerican Airlines
Thu 9/1811:50 amDCA - IAH
1 stop6h 34mAmerican Airlines
Deal found 7/28$177
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/54:40 pmIAH - IAD
1 stop6h 39mFrontier
Wed 8/66:10 amIAD - IAH
1 stop8h 15mFrontier
Deal found 7/28$196
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/42:52 pmIAH - IAD
1 stop16h 54mAmerican Airlines
Sun 10/511:47 amIAD - IAH
1 stop7h 02mAmerican Airlines
Deal found 7/27$215
This Frontier deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:00 amIAH - DCA
1 stop13h 57mFrontier
Sat 9/131:00 pmDCA - IAH
1 stop9h 14mFrontier
Deal found 7/26$238
This JetBlue deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:35 pmIAH - DCA
1 stop6h 25mJetBlue
Mon 11/39:00 amDCA - IAH
1 stop9h 47mJetBlue
Deal found 7/28$251
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:20 amIAH - IAD
Nonstop3h 08mUnited Airlines
Sat 9/611:03 amIAD - IAH
Nonstop3h 14mUnited Airlines
Deal found 7/29$277
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:20 amIAH - DCA
1 stop5h 14mDelta
Wed 8/207:38 pmDCA - IAH
1 stop5h 18mDelta
Deal found 7/27$297
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2211:55 amIAH - DCA
Nonstop3h 08mUnited Airlines
Fri 8/226:05 pmDCA - IAH
1 stop6h 28mUnited Airlines
Deal found 7/27$338

Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl to Washington, D.C. 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, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Washington, D.C. that are best for you.

Fly from

George Bush Intcntl

Fly to

Washington, D.C.

Route

Depart

Return

Price

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Mon 9/22

5:50 am-9:58 am

Nonstop3h 08m

Baltimore/Washington

Mon 10/6

6:10 am-8:39 am

Nonstop3h 29m

$111

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Tue 8/12

7:05 am-12:19 am

1 stop16h 14m

Washington, D.C. Dulles Intl

Sat 8/16

4:07 pm-10:20 pm

1 stop7h 13m

$162

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Sat 10/18

10:55 am-5:43 pm

1 stop5h 48m

Washington, D.C. Reagan-National

Sat 10/18

8:40 pm-11:16 pm

Nonstop3h 36m

$177

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Thu 8/21

5:51 pm-12:16 am

1 stop5h 25m

Washington, D.C. Dulles Intl

Sun 8/24

5:18 pm-10:39 pm

1 stop6h 21m

$196

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Wed 8/13

7:00 am-9:57 pm

1 stop13h 57m

Washington, D.C. Reagan-National

Sat 9/13

1:00 pm-9:14 pm

1 stop9h 14m

$238

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Fri 10/31

1:35 pm-9:00 pm

1 stop6h 25m

Washington, D.C. Reagan-National

Mon 11/3

9:00 am-5:47 pm

1 stop9h 47m

$251

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Sat 9/6

6:35 pm-8:46 am

2 stops13h 11m

Washington, D.C. Dulles Intl

Sun 9/7

11:47 am-5:49 pm

1 stop7h 02m

$260

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Thu 9/4

7:20 am-11:28 am

Nonstop3h 08m

Washington, D.C. Dulles Intl

Sat 9/6

11:03 am-1:17 pm

Nonstop3h 14m

$277

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Wed 8/27

5:00 am-12:59 pm

1 stop6h 59m

Washington, D.C. Reagan-National

Wed 8/27

7:59 pm-10:12 pm

Nonstop3h 13m

$287

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Wed 8/20

5:20 am-11:34 am

1 stop5h 14m

Washington, D.C. Reagan-National

Wed 8/20

7:38 pm-11:56 pm

1 stop5h 18m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 24 results
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The best insider tips for Houston George Bush Intcntl Airport to Washington, D.C. flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Washington, D.C. trip
Airports
IAH

Check the IAH Depart tab online for current security wait times at all terminals before heading to the airport.

Read more about IAHby Evie Carrick
DCA

DCA is easily accessible via the Metro, with a dedicated stop on the Yellow and Blue lines, making it the most affordable option.

Read more about DCAby Emily Zemler
IAD

Take the Silver line Metro to reach IAD in under 40 minutes, a cheap and convenient option for travelers.

Read more about IADby Ramsey Qubein
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Emily Zemler

Emily Zemler

Expert on DCA

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from George Bush Intcntl to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from George Bush Intcntl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to Washington, D.C.

How far ahead should I book a flight from Houston George Bush Intcntl Airport to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Washington, D.C.. Price data was last updated on July 25, 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston George Bush Intcntl Airport to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Washington, D.C. (average of $241). Flying from Houston George Bush Intcntl Airport to Washington, D.C. in March is currently the most expensive (average of $290). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAH to WAS?

Find hourly flight availability from George Bush Intcntl to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

A simple way to save on the total cost of your ticket is to fly from Houston George Bush Intcntl Airport to Washington, D.C. in the evening. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Houston George Bush Intcntl Airport to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Washington, D.C.. Price data was last updated on July 27, 2025.

Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Washington, D.C. flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Houston George Bush Intcntl Airport to Washington, D.C.

Explore weekly flight availability from George Bush Intcntl to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 29, 2025.

The most flights from IAH to WAS are scheduled on a Tuesday (34 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Washington, D.C.?

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated July 29, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines from Houston George Bush Intcntl Airport to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
8.0
Very good

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Washington, D.C. round-trip?

    Currently priced at $111, Spirit Airlines will fly you from Houston George Bush Intcntl Airport to Washington, D.C. and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Frontier - these airlines can fly you to your destination from $177 and $196, respectively. Spirit Airlines is 60% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Washington, D.C. one-way?

    One-way options have recently been found by users for as low as $63 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $103 and American Airlines from $104 one-way.

  • What are the most popular routes from Houston George Bush Intcntl Airport to Washington, D.C.?

  • What are the most reliable airlines from Houston George Bush Intcntl Airport to Washington, D.C.?

    Consider Mesa Airlines (87%), Spirit Airlines (70%) or Virgin Australia (67%) when booking your flight. These represent the most reliable airlines when flying from Houston George Bush Intcntl Airport to Washington, D.C..

  • What are the cheapest flights from Houston George Bush Intcntl Airport to Washington, D.C.?

    Looking at all options, your cheapest flight can be booked for $48. While the most popular route (Houston George Bush Intcntl - Washington, D.C. Dulles Intl) can be booked for $205 on average our data indicates $187 when flying from Houston George Bush Intcntl Airport to Washington, D.C..

  • Can I find deals for flights from George Bush Intcntl to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on George Bush Intcntl to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from George Bush Intcntl to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Washington, D.C..

  • Can I find deals for business class flights from George Bush Intcntl to Washington, D.C.?

    Yes. Cheapflights offers flight deals from George Bush Intcntl to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Washington, D.C. (average of $241). Flying from Houston George Bush Intcntl Airport to Washington, D.C. in March is currently the most expensive (average of $290). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Easton
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Waldorf
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Rockville
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Springfield
National Harbor
Dundalk

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Alternative routes for George Bush Intcntl to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from George Bush Intcntl to Washington, D.C.

Discover the top 5 airlines that operate flights from George Bush Intcntl to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$199FlexibilityNo cancel feeOn-time65%
FrontierCheapest$102Average$282FlexibilityNo cancel feeOn-time62%
DeltaCheapest$144Average$348FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$177Average$310FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$197Average$391FlexibilityNo cancel feeOn-time69%

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