Washington, D.C.

$76+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — WAS
Jun 17 — Jun 241
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Washington, D.C. are usually found in October or July, booked 41 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 June 12, 2025.

Round-trip from

$140
(Cheapflightsfares)

One-way from

$76
(FlightHub)

Popular in

April

Cheapest in

October

Average price

$307

Good round-trip deal

$173 or less

Good one-way deal

$97 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. 10% potential increase in price ($32 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in June 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 June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
Sun 11/210:52 amIAH - BWI
1 stop7h 33mSpirit Airlines
Wed 11/56:30 amBWI - IAH
Nonstop3h 13mSpirit Airlines
Deal found 6/11$140
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 8/265:00 amIAH - BWI
1 stop6h 43mAmerican Airlines
Wed 8/277:58 amBWI - IAH
2 stops8h 48mAmerican Airlines
Deal found 6/11$202
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 8/264:41 pmIAH - IAD
1 stop16h 12mAmerican Airlines
Wed 8/2711:51 amIAD - IAH
1 stop5h 48mAmerican Airlines
Deal found 6/12$205
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 9/34:45 pmIAH - DCA
Nonstop3h 08mUnited Airlines
Mon 9/811:00 amDCA - IAH
Nonstop3h 22mUnited Airlines
Deal found 6/11$217
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 9/34:45 pmIAH - IAD
Nonstop3h 07mUnited Airlines
Mon 9/811:03 amIAD - IAH
Nonstop3h 14mUnited Airlines
Deal found 6/10$217
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 9/35:09 pmIAH - DCA
Nonstop3h 11mAmerican Airlines
Sat 9/68:00 pmDCA - IAH
Nonstop3h 25mAmerican Airlines
Deal found 6/12$224
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
Sun 8/315:51 pmIAH - IAD
1 stop5h 18mFrontier
Sun 9/75:08 pmIAD - IAH
1 stop5h 55mFrontier
Deal found 6/12$233
This Frontier deal was found by Cheapflights users on 6/11. 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.
Fri 7/188:56 pmIAH - BWI
1 stop11h 37mFrontier
Tue 7/225:35 pmBWI - IAH
1 stop5h 51mFrontier
Deal found 6/11$236
This Delta deal was found by Cheapflights users on 6/12. 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.
Thu 8/71:07 pmIAH - DCA
1 stop6h 36mDelta
Mon 8/118:59 amDCA - IAH
1 stop6h 54mDelta
Deal found 6/12$237
This Delta deal was found by Cheapflights users on 6/11. 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.
Fri 9/125:00 pmIAH - BWI
1 stop6h 12mDelta
Thu 9/188:10 amBWI - IAH
1 stop5h 09mDelta
Deal found 6/11$237
This Delta deal was found by Cheapflights users on 6/9. 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.
Tue 9/94:00 pmIAH - IAD
1 stop5h 55mDelta
Mon 11/177:50 pmIAD - IAH
1 stop5h 06mDelta
Deal found 6/9$237
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/279:33 pmIAH - IAD
1 stop22h 19mMultiple Airlines
Sun 6/2911:12 amIAD - IAH
1 stop10h 26mMultiple Airlines
Deal found 6/12$238

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 June 12, 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

Sun 11/2

10:52 am-7:25 pm

1 stop7h 33m

Baltimore/Washington

Wed 11/5

6:30 am-8:43 am

Nonstop3h 13m

$140

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Tue 8/26

5:00 am-12:43 pm

1 stop6h 43m

Baltimore/Washington

Wed 8/27

7:58 am-3:46 pm

2 stops8h 48m

$202

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Tue 8/26

4:41 pm-9:53 am

1 stop16h 12m

Washington, D.C. Dulles Intl

Wed 8/27

11:51 am-4:39 pm

1 stop5h 48m

$205

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Wed 9/3

4:45 pm-8:53 pm

Nonstop3h 08m

Washington, D.C. Reagan-National

Mon 9/8

11:00 am-1:22 pm

Nonstop3h 22m

$217

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Wed 9/3

4:45 pm-8:52 pm

Nonstop3h 07m

Washington, D.C. Dulles Intl

Mon 9/8

11:03 am-1:17 pm

Nonstop3h 14m

$217

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Wed 9/3

5:09 pm-9:20 pm

Nonstop3h 11m

Washington, D.C. Reagan-National

Sat 9/6

8:00 pm-10:25 pm

Nonstop3h 25m

$224

HoustonWashington, D.C.

IAH - IAD

IAHIAD

Houston George Bush Intcntl

Sun 8/31

5:51 pm-12:09 am

1 stop5h 18m

Washington, D.C. Dulles Intl

Sun 9/7

5:08 pm-10:03 pm

1 stop5h 55m

$233

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Fri 7/18

8:56 pm-9:33 am

1 stop11h 37m

Baltimore/Washington

Tue 7/22

5:35 pm-10:26 pm

1 stop5h 51m

$236

HoustonWashington, D.C.

IAH - DCA

IAHDCA

Houston George Bush Intcntl

Thu 8/7

1:07 pm-8:43 pm

1 stop6h 36m

Washington, D.C. Reagan-National

Mon 8/11

8:59 am-2:53 pm

1 stop6h 54m

$237

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Fri 9/12

5:00 pm-12:12 am

1 stop6h 12m

Baltimore/Washington

Thu 9/18

8:10 am-12:19 pm

1 stop5h 09m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 33 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 June 9, 2025.

Booking 41 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 June 12, 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 June 8, 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. Saturday at noon 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 June 12, 2025.

The most flights from IAH to WAS are scheduled on a Tuesday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Houston to Washington, D.C., such as Alaska Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $140, 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 United Airlines - these airlines can fly you to your destination from $202 and $217, respectively. Spirit Airlines is 50% 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 $76 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $77 and United Airlines from $109 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 (85%), Spirit Airlines (82%) or Virgin Australia (79%) 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 $51. While the most popular route (Houston George Bush Intcntl - Baltimore/Washington) can be booked for $96 on average our data indicates $480 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 Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas
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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$62Average$266FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$96Average$199FlexibilityNo cancel feeOn-time65%
DeltaCheapest$144Average$334FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$184Average$382FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$198Average$330FlexibilityNo cancel feeOn-time71%

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