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Dulles Intl

$149+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — IAD
Feb 15 — Feb 221
Sun 2/15
Sun 2/22
1 adult, Economy
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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 January 16, 2026.

Round-trip from

$305
(Delta)

One-way from

$149
(Delta)

Popular in

December

Cheapest in

October

Average price

$356
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. 10% potential increase in price ($40 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 January 2026
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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 January 16, 2026.

This Delta deal was found by Cheapflights users on 1/13. 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 2/105:45 am
HOU
-
IAD
1 stop4h 59m
Delta
Wed 2/1110:08 am
IAD
-
HOU
1 stop7h 02m
Delta
Deal found 1/13$305
This Delta deal was found by Cheapflights users on 1/13. 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 2/311:09 am
HOU
-
IAD
1 stop6h 12m
Delta
Sat 2/75:59 pm
IAD
-
HOU
1 stop5h 34m
Delta
Deal found 1/13$325
This Delta deal was found by Cheapflights users on 1/13. 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.
Sat 2/285:25 am
HOU
-
IAD
1 stop5h 10m
Delta
Sat 3/710:57 am
IAD
-
HOU
1 stop5h 06m
Delta
Deal found 1/13$340
This Southwest deal was found by Cheapflights users on 1/13. 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 2/32:10 pm
HOU
-
IAD
1 stop6h 45m
Southwest
Sat 2/77:00 am
IAD
-
HOU
2 stops11h 00m
Southwest
Deal found 1/13$350
This Delta deal was found by Cheapflights users on 1/13. 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 3/410:50 am
HOU
-
IAD
1 stop6h 47m
Delta
Fri 3/66:00 am
IAD
-
HOU
1 stop5h 01m
Delta
Deal found 1/13$361
This Delta deal was found by Cheapflights users on 1/15. 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.
Sat 2/145:35 pm
HOU
-
IAD
1 stop5h 46m
Delta
Sat 2/215:25 pm
IAD
-
HOU
1 stop6h 03m
Delta
Deal found 1/15$373
This Delta deal was found by Cheapflights users on 1/15. 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 2/115:04 pm
HOU
-
IAD
1 stop6h 20m
Delta
Wed 2/187:15 am
IAD
-
HOU
1 stop6h 05m
Delta
Deal found 1/15$374
This Delta deal was found by Cheapflights users on 1/14. 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.
Sat 2/285:25 am
HOU
-
IAD
1 stop5h 10m
Delta
Tue 3/36:00 am
IAD
-
HOU
1 stop7h 20m
Delta
Deal found 1/14$375
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/146:00 am
HOU
-
IAD
2 stops9h 16m
American Airlines
Sat 2/216:00 am
IAD
-
HOU
1 stop6h 48m
American Airlines
Deal found 1/15$378
This Southwest deal was found by Cheapflights users on 1/14. 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.
Sat 2/1411:25 am
HOU
-
IAD
2 stops9h 20m
Southwest
Tue 2/175:40 pm
IAD
-
HOU
1 stop7h 25m
Southwest
Deal found 1/14$380
This Delta deal was found by Cheapflights users on 1/13. 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.
Sat 2/75:45 am
HOU
-
IAD
1 stop4h 58m
Delta
Sun 2/156:00 am
IAD
-
HOU
1 stop5h 01m
Delta
Deal found 1/13$381

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 January 16, 2026.
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

Sat 2/28

5:25 am-11:35 am

1 stop5h 10m

Washington, D.C. Dulles Intl

Sat 3/7

10:57 am-3:03 pm

1 stop5h 06m

$340

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Tue 3/3

5:25 am-6:37 pm

1 stop12h 12m

Washington, D.C. Dulles Intl

Mon 3/16

7:18 am-1:28 pm

1 stop7h 10m

$340

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 3/4

10:50 am-6:37 pm

1 stop6h 47m

Washington, D.C. Dulles Intl

Fri 3/6

6:00 am-10:01 am

1 stop5h 01m

$361

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 3/18

2:13 pm-8:54 pm

1 stop5h 41m

Washington, D.C. Dulles Intl

Mon 3/23

6:01 am-10:39 am

1 stop5h 38m

$373

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 2/14

5:35 pm-12:21 am

1 stop5h 46m

Washington, D.C. Dulles Intl

Tue 2/17

3:42 pm-10:28 pm

1 stop7h 46m

$373

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 2/28

5:25 am-11:35 am

1 stop5h 10m

Washington, D.C. Dulles Intl

Mon 3/2

12:35 pm-4:28 pm

1 stop4h 53m

$373

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 6/3

5:35 pm-12:09 am

1 stop5h 34m

Washington, D.C. Dulles Intl

Sat 7/4

7:00 am-12:10 pm

1 stop6h 10m

$373

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 2/11

5:04 pm-12:24 am

1 stop6h 20m

Washington, D.C. Dulles Intl

Wed 2/18

7:15 am-12:20 pm

1 stop6h 05m

$374

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 2/28

5:25 am-11:35 am

1 stop5h 10m

Washington, D.C. Dulles Intl

Tue 3/3

6:00 am-12:20 pm

1 stop7h 20m

$375

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 2/14

11:25 am-9:45 pm

2 stops9h 20m

Washington, D.C. Dulles Intl

Tue 2/17

5:40 pm-12:05 am

1 stop7h 25m

$380

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

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 January 9, 2026.

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, November is the cheapest month in which you can book a flight from Galveston to Washington, D.C. Dulles Intl Airport (average of $130). Flying from Galveston to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $269). 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 January 16, 2026.

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 9% 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 January 10, 2026.

Travelers seeking maximum savings on their Galveston to Washington, D.C. Dulles Intl Airport flight should consider departing on Monday at noon 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.

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 January 16, 2026.
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
9,166 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,166 reviews
United Airlines
7.4
Good
9,166 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,148 reviews
United Airlines
7.4
Good
9,166 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Spirit Airlines
6.3
Okay
8,327 reviews
United Airlines
7.4
Good
9,166 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Frontier
5.7
Fair
3,057 reviews
United Airlines
7.4
Good
9,166 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 $340, Delta can have you in Washington, D.C. Dulles Intl Airport from Galveston in 5h 10m. The distance from Galveston to Washington, D.C. Dulles Intl Airport is about 1199 mi.

  • 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 $76. 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, November is the cheapest month in which you can book a flight from Galveston to Washington, D.C. Dulles Intl Airport (average of $130). Flying from Galveston to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $269). 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
Silver Spring
Hanover
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Largo
Bowie
McLean
Clinton
Herndon

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 January 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$63Average$184FlexibilityNo cancel feeOn-time65%
FrontierCheapest$129Average$227FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$328FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$240Average$399FlexibilityNo cancel feeOn-time69%

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