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Washington, D.C.

$45+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — WAS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Washington, D.C. are usually found in October or February, booked 77 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 September 11, 2025.

Round-trip from

$86
(Cheapflightsfares)

One-way from

$45
(Kiwi.com)

Popular in

January

Cheapest in

October

Average price

$242

Good round-trip deal

$99 or less

Good one-way deal

$112 or less
From Houston George Bush Intcntl to Washington, D.C. (WAS)
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One-way flight from Houston George Bush Intcntl to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 9% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Houston George Bush Intcntl to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Houston George Bush Intcntl to Washington, D.C. (WAS).
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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 September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/23:34 pmIAH - BWI
Nonstop3h 13mSpirit Airlines
Wed 10/811:23 amBWI - IAH
Nonstop3h 25mSpirit Airlines
Deal found 9/10$86
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:30 amIAH - BWI
1 stop9h 02mSpirit Airlines
Wed 10/811:23 amBWI - IAH
Nonstop3h 25mSpirit Airlines
Deal found 9/10$88
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:20 amIAH - BWI
Nonstop3h 08mSpirit Airlines
Tue 11/411:23 amBWI - IAH
Nonstop3h 25mSpirit Airlines
Deal found 9/10$90
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/155:45 amIAH - BWI
Nonstop3h 08mSpirit Airlines
Wed 11/196:00 amBWI - IAH
Nonstop3h 29mSpirit Airlines
Deal found 9/9$91
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:00 pmIAH - BWI
Nonstop3h 16mSpirit Airlines
Mon 10/135:45 amBWI - IAH
Nonstop3h 18mSpirit Airlines
Deal found 9/10$95
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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.
Tue 10/146:20 amIAH - BWI
Nonstop3h 08mSpirit Airlines
Wed 10/155:20 pmBWI - IAH
1 stop8h 08mSpirit Airlines
Deal found 9/11$96
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:45 amIAH - BWI
Nonstop3h 08mMultiple Airlines
Sun 12/1411:14 amBWI - IAH
Nonstop3h 40mMultiple Airlines
Deal found 9/9$98
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:15 amIAH - BWI
Nonstop3h 04mMultiple Airlines
Tue 12/28:40 amBWI - IAH
Nonstop3h 31mMultiple Airlines
Deal found 9/9$99
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/245:50 amIAH - BWI
Nonstop3h 08mSpirit Airlines
Wed 10/111:02 amBWI - IAH
Nonstop3h 30mSpirit Airlines
Deal found 9/10$101
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:00 pmIAH - BWI
Nonstop3h 11mSpirit Airlines
Fri 10/315:45 amBWI - IAH
Nonstop3h 18mSpirit Airlines
Deal found 9/10$102
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:47 pmIAH - BWI
1 stop5h 30mMultiple Airlines
Wed 10/811:23 amBWI - IAH
Nonstop3h 25mMultiple Airlines
Deal found 9/10$104
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/305:00 pmIAH - IAD
1 stop25h 55mMultiple Airlines
Tue 10/79:00 amIAD - IAH
1 stop14h 23mMultiple Airlines
Deal found 9/10$141

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 September 11, 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

Wed 10/22

6:20 am-10:28 am

Nonstop3h 08m

Baltimore/Washington

Thu 10/23

6:10 am-8:34 am

Nonstop3h 24m

$95

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Sun 11/2

9:04 pm-1:11 am

Nonstop3h 07m

Baltimore/Washington

Wed 11/5

6:00 am-8:29 am

Nonstop3h 29m

$95

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Tue 10/21

6:20 am-10:28 am

Nonstop3h 08m

Baltimore/Washington

Thu 10/23

6:10 am-8:34 am

Nonstop3h 24m

$95

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Wed 10/8

6:00 am-2:48 pm

1 stop7h 48m

Baltimore/Washington

Sat 10/11

6:10 am-8:34 am

Nonstop3h 24m

$97

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Thu 10/9

9:04 pm-1:11 am

Nonstop3h 07m

Baltimore/Washington

Sun 10/12

6:10 am-8:34 am

Nonstop3h 24m

$109

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Thu 10/23

9:04 pm-1:11 am

Nonstop3h 07m

Baltimore/Washington

Mon 10/27

5:45 am-8:03 am

Nonstop3h 18m

$109

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Mon 9/22

6:05 am-7:10 pm

1 stop12h 05m

Baltimore/Washington

Thu 12/11

11:14 am-1:54 pm

Nonstop3h 40m

$123

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Sat 10/25

5:25 am-12:40 pm

1 stop6h 15m

Baltimore/Washington

Sat 11/1

5:14 pm-10:23 pm

1 stop6h 09m

$132

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Thu 10/23

5:57 pm-12:18 am

1 stop5h 21m

Baltimore/Washington

Mon 10/27

7:24 pm-9:50 pm

Nonstop3h 26m

$137

HoustonBaltimore

IAH - BWI

IAHBWI

Houston George Bush Intcntl

Fri 10/17

5:42 pm-12:13 am

1 stop5h 31m

Baltimore/Washington

Mon 10/20

4:12 pm-10:03 pm

1 stop6h 51m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 60 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 August 29, 2025.

Booking 77 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 $292). Flying from Houston George Bush Intcntl Airport to Washington, D.C. in April is currently the most expensive (average of $337). 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 September 11, 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. at noon. If you’re flexible enough to do this you can expect to save up to 29% 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 September 7, 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 September 11, 2025.

The most flights from IAH to WAS are scheduled on a Thursday (41 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 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 September 11, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Spirit 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.
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.
Spirit Airlines
6.3
Okay
8,023 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.
Frontier
5.8
Fair
3,177 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
8.0
Excellent

Mignon,Nov 2024

IAH - LGA

Good boarding process. (Nice to be able to buy Group 2 boarding option.) Plane was clean. Tried to avoid full flight by flying on Saturday, but plane was full anyway. Gate area in Houston should have charging options. Should be a lounge for people with American Express Platinum Card in Houston Airport.

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.

  • How long is the flight from Houston George Bush Intcntl Airport to Washington, D.C.?

    A quick flight from Houston George Bush Intcntl Airport to Washington, D.C. can take about 3h 03m. Spirit Airlines provides one of the quickest options available for as low as $165. The distance between Houston George Bush Intcntl Airport and Washington, D.C. is about 1206 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Washington, D.C. round-trip?

    Currently priced at $98, 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 Frontier and Delta - these airlines can fly you to your destination from $143 and $144, respectively. Spirit Airlines is 64% 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 $55 on Spirit Airlines. Other airlines that offer cheap prices include American Airlines from $91 and United Airlines from $91 one-way.

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

    The most popular route from Houston George Bush Intcntl Airport to Washington, D.C. is Houston George Bush Intcntl - Washington, D.C. Dulles Intl. You may also consider Houston George Bush Intcntl - Washington, D.C. Reagan-National or Houston George Bush Intcntl - Baltimore/Washington.

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

    Consider Air China (77%), United Airlines (76%) or Brussels Airlines (75%) 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 $118. While the most popular route (Houston George Bush Intcntl - Washington, D.C. Dulles Intl) can be booked for $143 on average, our data indicates $977 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 $292). Flying from Houston George Bush Intcntl Airport to Washington, D.C. in April is currently the most expensive (average of $337). 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
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

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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.
Hobby to Dulles Intl flights
Hobby to Reagan-National flights
George Bush Intcntl to Dulles Intl flights
George Bush Intcntl to Reagan-National flights

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$94Average$198FlexibilityNo cancel feeOn-time65%
FrontierCheapest$102Average$279FlexibilityNo cancel feeOn-time62%
DeltaCheapest$144Average$348FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$177Average$313FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$191Average$405FlexibilityNo cancel feeOn-time69%

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