Dulles Intl

$119+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — IAD
Jul 5 — Jul 121
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Cheapflights Tip: The best prices from Galveston to Washington, D.C. Dulles Intl are usually found in September or January, booked 67 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

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 June 30, 2025.

Round-trip from

$197
(Southwest)

One-way from

$119
(Delta)

Popular in

November

Cheapest in

September

Average price

$350
From Galveston to Washington, D.C. Dulles Intl
One-way flight from Galveston to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 9% potential increase in price ($36 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in June 2025

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 June 30, 2025.

This Southwest deal was found by Cheapflights users on 6/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:05 amHOU - IAD
1 stop7h 10mSouthwest
Tue 9/305:45 amIAD - HOU
1 stop9h 15mSouthwest
Deal found 6/28$197
This Delta deal was found by Cheapflights users on 6/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1210:22 amHOU - IAD
1 stop5h 08mDelta
Tue 8/196:00 amIAD - HOU
1 stop7h 10mDelta
Deal found 6/29$237
This Sun Country Air deal was found by Cheapflights users on 6/30. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/276:05 pmHOU - IAD
1 stop17h 26mSun Country Air
Tue 7/2912:34 pmIAD - HOU
1 stop25h 55mSun Country Air
Deal found 6/30$285
This American Airlines deal was found by Cheapflights users on 6/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:00 amHOU - IAD
1 stop9h 50mAmerican Airlines
Sat 9/2711:47 amIAD - HOU
1 stop5h 08mAmerican Airlines
Deal found 6/29$287
This Mytrip deal was found by Cheapflights users on 6/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:24 pmHOU - IAD
2 stops22h 39mMultiple Airlines
Sun 8/109:05 pmIAD - HOU
2 stops22h 08mMultiple Airlines
Deal found 6/28$359

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 June 30, 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

Tue 9/23

8:05 am-4:15 pm

1 stop7h 10m

Washington, D.C. Dulles Intl

Tue 9/30

5:45 am-2:00 pm

1 stop9h 15m

$197

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Tue 8/12

10:22 am-4:30 pm

1 stop5h 08m

Washington, D.C. Dulles Intl

Tue 8/19

6:00 am-12:10 pm

1 stop7h 10m

$237

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sun 7/27

6:05 pm-12:31 pm

1 stop17h 26m

Washington, D.C. Dulles Intl

Tue 7/29

12:34 pm-1:29 pm

1 stop25h 55m

$285

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 9/25

6:00 am-4:50 pm

1 stop9h 50m

Washington, D.C. Dulles Intl

Sat 9/27

11:47 am-3:55 pm

1 stop5h 08m

$287

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 8/7

6:24 pm-6:03 pm

2 stops22h 39m

Washington, D.C. Dulles Intl

Sun 8/10

9:05 pm-6:13 pm

2 stops22h 08m

$359

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Mon 8/4

6:40 pm-12:34 am

1 stop4h 54m

$119

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Tue 11/25

6:37 pm-11:54 am

1 stop16h 17m

$143

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sun 8/3

4:25 pm-10:46 pm

1 stop5h 21m

$179

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 7/16

10:15 am-11:08 am

2 stops23h 53m

$212

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Mon 8/11

1:00 pm-10:50 pm

2 stops8h 50m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

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 June 27, 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, August is the cheapest month in which you can book a flight from Galveston to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Galveston to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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 June 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Galveston to Washington, D.C. Dulles Intl Airport as you normally would.

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 June 30, 2024.

Travelers seeking maximum savings on their Galveston to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday mornings 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 June 30, 2025.
Read reviews from past customers who have flown Southwest, Delta, and Qatar Airways 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.

Entertainment

7.6

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
8.0
Very good

Entertainment

7.6

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $119. However, be on the lookout for offers from Sun Country Air 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, August is the cheapest month in which you can book a flight from Galveston to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Galveston to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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 Galveston?

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

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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.

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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$54Average$235FlexibilityNo cancel feeOn-time65%
FrontierCheapest$161Average$282FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$234Average$345FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$316FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$244Average$382FlexibilityNo cancel feeOn-time69%

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