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Dulles Intl

$153+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — IAD
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheapflights Tip: The best prices from Galveston to Washington, D.C. Dulles Intl are usually found in October or August, booked 67 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap 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 December 16, 2025.

This Delta deal was found by Cheapflights users on 12/14. 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 12/256:00 amHOU - IAD
1 stop5h 13mDelta
Wed 12/314:17 pmIAD - HOU
1 stop5h 07mDelta
Deal found 12/14$313
This Delta deal was found by Cheapflights users on 12/16. 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 12/256:00 amHOU - IAD
1 stop5h 13mDelta
Thu 1/16:00 amIAD - HOU
1 stop5h 01mDelta
Deal found 12/16$356
This Southwest deal was found by Cheapflights users on 12/15. 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.
Thu 12/255:35 amHOU - IAD
1 stop9h 10mSouthwest
Thu 1/17:40 amIAD - HOU
1 stop8h 05mSouthwest
Deal found 12/15$426
This Delta deal was found by Cheapflights users on 12/15. 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 12/256:00 amHOU - IAD
1 stop5h 13mDelta
Sat 1/36:00 amIAD - HOU
1 stop5h 01mDelta
Deal found 12/15$435
This Delta deal was found by Cheapflights users on 12/14. 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 12/313:25 pmHOU - IAD
1 stop6h 27mDelta
Sun 1/46:59 pmIAD - HOU
1 stop5h 13mDelta
Deal found 12/14$458
This Southwest deal was found by Cheapflights users on 12/14. 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 12/295:30 amHOU - IAD
1 stop6h 35mSouthwest
Thu 1/17:40 amIAD - HOU
1 stop8h 05mSouthwest
Deal found 12/14$468
This Southwest deal was found by Cheapflights users on 12/15. 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.
Wed 12/242:35 pmHOU - IAD
1 stop6h 35mSouthwest
Tue 1/69:05 amIAD - HOU
1 stop7h 20mSouthwest
Deal found 12/15$469
This Southwest deal was found by Cheapflights users on 12/14. 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.
Wed 12/312:35 pmHOU - IAD
1 stop6h 35mSouthwest
Fri 1/25:00 amIAD - HOU
2 stops9h 45mSouthwest
Deal found 12/14$473
This American Airlines deal was found by Cheapflights users on 12/14. 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 12/2510:13 amHOU - IAD
1 stop5h 03mAmerican Airlines
Tue 12/306:07 pmIAD - HOU
1 stop6h 39mAmerican Airlines
Deal found 12/14$475
This Delta deal was found by Cheapflights users on 12/15. 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 12/313:25 pmHOU - IAD
1 stop6h 27mDelta
Fri 1/210:57 amIAD - HOU
1 stop7h 53mDelta
Deal found 12/15$478
This Southwest deal was found by Cheapflights users on 12/15. 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.
Wed 12/245:35 amHOU - IAD
1 stop9h 10mSouthwest
Wed 12/317:40 amIAD - HOU
1 stop11h 10mSouthwest
Deal found 12/15$520

Find 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 December 16, 2025.

Round-trip from

$305
(Delta)

One-way from

$153
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$440
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. 11% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 16, 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

Sun 1/18

5:45 am-11:37 am

1 stop4h 52m

Washington, D.C. Dulles Intl

Sat 1/24

6:00 am-10:21 am

1 stop5h 21m

$309

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 1/17

5:45 am-11:36 am

1 stop4h 51m

Washington, D.C. Dulles Intl

Sun 1/18

6:20 am-10:21 am

1 stop5h 01m

$309

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 1/21

6:30 am-3:50 pm

2 stops8h 20m

Washington, D.C. Dulles Intl

Wed 1/28

9:05 am-5:35 pm

1 stop9h 30m

$310

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 1/24

11:10 am-10:10 pm

2 stops10h 00m

Washington, D.C. Dulles Intl

Wed 1/28

9:05 am-3:25 pm

1 stop7h 20m

$345

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 1/8

5:45 am-1:59 pm

1 stop7h 14m

Washington, D.C. Dulles Intl

Sat 1/10

6:20 am-10:21 am

1 stop5h 01m

$349

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 12/25

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

$356

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 1/8

6:30 am-3:50 pm

2 stops8h 20m

Washington, D.C. Dulles Intl

Tue 1/13

9:05 am-3:25 pm

1 stop7h 20m

$359

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 1/22

6:15 am-3:50 pm

1 stop8h 35m

Washington, D.C. Dulles Intl

Mon 1/26

9:05 am-3:25 pm

1 stop7h 20m

$375

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 1/22

5:04 pm-12:24 am

1 stop6h 20m

Washington, D.C. Dulles Intl

Thu 1/29

6:00 am-10:21 am

1 stop5h 21m

$375

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 1/22

5:04 pm-12:24 am

1 stop6h 20m

Washington, D.C. Dulles Intl

Mon 1/26

3:42 pm-10:33 pm

1 stop7h 51m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 19 results
1
2

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 December 12, 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 February is currently the most expensive (average of $241). 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 December 16, 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 21% 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.

How much does it cost to fly round-trip from Galveston to Washington, D.C. Dulles Intl Airport?

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 December 16, 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
9,094 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,094 reviews
United Airlines
7.4
Good
9,094 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
American Airlines
7.2
Good
11,047 reviews
United Airlines
7.4
Good
9,094 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Spirit Airlines
6.3
Okay
8,188 reviews
United Airlines
7.4
Good
9,094 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Frontier
5.8
Fair
3,082 reviews
United Airlines
7.4
Good
9,094 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 $309, Delta can have you in Washington, D.C. Dulles Intl Airport from Galveston in 4h 52m. The distance from Galveston to Washington, D.C. Dulles Intl Airport is about 1199 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Galveston to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $75. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Galveston to Washington, D.C. Dulles Intl Airport for a low price.

  • 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 February is currently the most expensive (average of $241). 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
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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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Top 4 airlines flying from Galveston to Dulles Intl

Discover the top 4 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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$54Average$184FlexibilityNo cancel feeOn-time65%
FrontierCheapest$129Average$234FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$232Average$400FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$236Average$328FlexibilityNo cancel feeOn-time71%

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