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Dulles Intl

$127+ Cheap flights from Galveston, TX to Dulles Intl (IAD)

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — IAD
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheapflights Tip: The best prices from Galveston to Washington, D.C. Dulles Intl are usually found in August or September, booked 67 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Find flight deals from Galveston to Dulles Intl

Cheapest flights from Galveston to Dulles Intl
Explore the most affordable flight options available from Galveston to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This Delta deal was found by Cheapflights users on 10/19. 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 12/176:47 pmHOU - IAD
1 stop4h 25mDelta
Wed 12/316:00 amIAD - HOU
1 stop5h 01mDelta
Deal found 10/19$339
This Delta deal was found by Cheapflights users on 10/20. 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 12/186:00 amHOU - IAD
1 stop4h 35mDelta
Wed 12/316:00 amIAD - HOU
1 stop5h 01mDelta
Deal found 10/20$374
This Southwest deal was found by Cheapflights users on 10/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:10 amHOU - IAD
1 stop7h 00mSouthwest
Tue 11/251:45 pmIAD - HOU
1 stop10h 30mSouthwest
Deal found 10/19$384
This Southwest deal was found by Cheapflights users on 10/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:35 amHOU - IAD
1 stop9h 10mSouthwest
Tue 11/187:40 amIAD - HOU
1 stop9h 35mSouthwest
Deal found 10/18$387
This Delta deal was found by Cheapflights users on 10/19. 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 12/46:47 pmHOU - IAD
1 stop4h 25mDelta
Mon 12/85:59 pmIAD - HOU
1 stop5h 49mDelta
Deal found 10/19$389
This American Airlines deal was found by Cheapflights users on 10/18. 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 11/114:24 pmHOU - IAD
1 stop5h 09mAmerican Airlines
Tue 11/187:55 amIAD - HOU
2 stops8h 59mAmerican Airlines
Deal found 10/18$392
This American Airlines deal was found by Cheapflights users on 10/18. 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 11/89:07 amHOU - IAD
2 stops9h 14mAmerican Airlines
Tue 11/117:55 amIAD - HOU
2 stops8h 59mAmerican Airlines
Deal found 10/18$397
This Delta deal was found by Cheapflights users on 10/19. 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 12/56:00 amHOU - IAD
1 stop4h 35mDelta
Wed 12/103:38 pmIAD - HOU
1 stop8h 10mDelta
Deal found 10/19$405
This Delta deal was found by Cheapflights users on 10/17. 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 12/126:47 pmHOU - IAD
1 stop4h 26mDelta
Mon 12/1512:30 pmIAD - HOU
1 stop6h 22mDelta
Deal found 10/17$406
This Southwest deal was found by Cheapflights users on 10/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1212:00 pmHOU - IAD
2 stops10h 30mSouthwest
Mon 12/157:40 amIAD - HOU
1 stop9h 45mSouthwest
Deal found 10/17$411
This Southwest deal was found by Cheapflights users on 10/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:10 amHOU - IAD
1 stop7h 00mSouthwest
Mon 11/241:50 pmIAD - HOU
1 stop9h 50mSouthwest
Deal found 10/19$414

Cheap flight deals from Galveston to Dulles Intl

Keep the following information in mind while searching for Galveston to Dulles Intl flight deals. Data was last updated October 20, 2025.

Round-trip from

$313
(Southwest)

One-way from

$127
(Kiwi.com)

Popular in

November

Cheapest in

August

Average price

$349
From Galveston to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Galveston to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Galveston to Dulles Intl 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 October 20, 2025.
Use the filters below to find and compare flights from Galveston to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Galveston

Fly to

Dulles Intl

Route

Depart

Return

Price

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 12/17

6:47 pm-12:12 am

1 stop4h 25m

Washington, D.C. Dulles Intl

Wed 12/31

6:00 am-10:01 am

1 stop5h 01m

$339

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sun 1/18

6:00 am-11:28 am

1 stop4h 28m

Washington, D.C. Dulles Intl

Thu 1/29

10:05 am-3:02 pm

1 stop5h 57m

$340

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 12/20

6:40 pm-12:12 am

1 stop4h 32m

Washington, D.C. Dulles Intl

Thu 1/1

6:00 am-10:01 am

1 stop5h 01m

$374

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Mon 12/22

6:00 am-12:13 pm

1 stop5h 13m

Washington, D.C. Dulles Intl

Thu 1/1

6:00 am-10:01 am

1 stop5h 01m

$374

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Fri 12/19

6:47 pm-12:12 am

1 stop4h 25m

Washington, D.C. Dulles Intl

Wed 12/31

6:00 am-10:01 am

1 stop5h 01m

$374

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 12/31

6:00 am-12:13 pm

1 stop5h 13m

Washington, D.C. Dulles Intl

Sat 1/3

10:51 am-2:38 pm

1 stop4h 47m

$374

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 12/18

10:39 am-6:21 pm

1 stop6h 42m

Washington, D.C. Dulles Intl

Thu 1/1

6:00 am-10:01 am

1 stop5h 01m

$374

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 12/24

6:00 am-12:13 pm

1 stop5h 13m

Washington, D.C. Dulles Intl

Thu 1/1

6:00 am-10:01 am

1 stop5h 01m

$374

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 12/3

6:47 pm-12:12 am

1 stop4h 25m

Washington, D.C. Dulles Intl

Wed 12/10

7:01 am-1:28 pm

1 stop7h 27m

$387

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 11/8

10:13 am-4:57 pm

1 stop5h 44m

Washington, D.C. Dulles Intl

Tue 11/11

5:59 pm-11:07 pm

1 stop6h 08m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 22 results
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Best time to book a flight from Galveston to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Galveston 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 Galveston to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Galveston to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Galveston to Dulles Intl. Price data was last updated on October 17, 2025.

To ensure you get the cheapest price possible for a flight from Galveston to Washington, D.C. Dulles Intl Airport, you should look to book at least 67 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Galveston to Washington, D.C. Dulles Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Galveston to Washington, D.C. Dulles Intl Airport (average of $54). Flying from Galveston to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $252). 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 G4L to IAD?

Find hourly flight availability from Galveston to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 20, 2025.

One of the essential ways to save on airfare from Galveston to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 23% on airfare.

What is the cheapest day to fly from Galveston to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Galveston to Dulles Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Galveston to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated October 20, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and Spirit Airlines from Galveston to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,993 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Tim,Sep 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
United Airlines
7.4
Good
8,993 reviews
United Airlines
7.4
Good
8,993 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Tim,Sep 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
American Airlines
7.2
Good
11,026 reviews
United Airlines
7.4
Good
8,993 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Tim,Sep 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Spirit Airlines
6.3
Okay
8,101 reviews
United Airlines
7.4
Good
8,993 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Tim,Sep 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
Frontier
5.8
Fair
3,130 reviews
United Airlines
7.4
Good
8,993 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Tim,Sep 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.

Related info for your journey

Find useful and relevant information for your journey from Galveston to Dulles Intl. 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 Galveston to Washington, D.C. Dulles Intl Airport?

    For as low as $339, Delta can have you in Washington, D.C. Dulles Intl Airport from Galveston in 4h 25m. The distance from Galveston to Washington, D.C. Dulles Intl Airport is about 1199 mi.

  • Can I find deals for flights from Galveston to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Galveston to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Galveston to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Galveston to Dulles Intl.

  • Can I find deals for business class flights from Galveston to Dulles Intl?

    Yes. Cheapflights offers flight deals from Galveston to Dulles Intl 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 Galveston to Washington, D.C. Dulles Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Galveston to Washington, D.C. Dulles Intl Airport (average of $54). Flying from Galveston to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $252). 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. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Arlington
Tysons
Springfield
Silver Spring
Hanover
Gaithersburg
Fredericksburg
Fairfax
Linthicum Heights
Falls Church
Owings Mills
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Galveston to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Harlingen to Baltimore flights
Midland to Reagan-National flights
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Top 5 airlines flying from Galveston to Dulles Intl

Discover the top 5 airlines that operate flights from Galveston to Dulles Intl. 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$54Average$235FlexibilityNo cancel feeOn-time65%
FrontierCheapest$144Average$237FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$233Average$398FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$234Average$328FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$312FlexibilityNo cancel feeOn-timeN/A

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