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Dulles Intl

$94+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — IAD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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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 March 28, 2025.

Round-trip from

$187
(Delta)

One-way from

$94
(Delta)

Popular in

November

Cheapest in

September

Average price

$431
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. 6% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 28, 2025.

This Delta deal was found by Cheapflights users on 3/27. 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 4/236:45 pmHOU - IAD
1 stop4h 40mDelta
Sat 4/2612:29 pmIAD - HOU
1 stop6h 42mDelta
Deal found 3/27$187
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/2610:18 amHOU - IAD
1 stop5h 05mAmerican Airlines
Tue 4/294:52 pmIAD - HOU
2 stops8h 04mAmerican Airlines
Deal found 3/27$248
This Southwest deal was found by Cheapflights users on 3/27. 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 5/76:00 amHOU - IAD
2 stops10h 55mSouthwest
Tue 5/137:50 amIAD - HOU
2 stops10h 25mSouthwest
Deal found 3/27$299
This Sun Country Air deal was found by Cheapflights users on 3/27. 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.
Thu 6/126:36 pmHOU - IAD
1 stop16h 49mSun Country Air
Sun 6/157:45 amIAD - HOU
1 stop10h 57mSun Country Air
Deal found 3/27$305
This Mytrip deal was found by Cheapflights users on 3/27. 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.
Fri 5/238:02 pmHOU - IAD
2 stops23h 58mAllegiant Air
Mon 5/263:13 pmIAD - HOU
1 stop4h 59mAllegiant Air
Deal found 3/27$359
This Mytrip deal was found by Cheapflights users on 3/27. 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 5/228:06 pmHOU - IAD
1 stop14h 47mMultiple Airlines
Mon 5/263:13 pmIAD - HOU
1 stop4h 59mMultiple Airlines
Deal found 3/27$376

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 March 28, 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 4/23

6:45 pm-12:25 am

1 stop4h 40m

Washington, D.C. Dulles Intl

Sat 4/26

12:29 pm-6:11 pm

1 stop6h 42m

$187

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 4/26

10:18 am-4:23 pm

1 stop5h 05m

Washington, D.C. Dulles Intl

Tue 4/29

4:52 pm-11:56 pm

2 stops8h 04m

$248

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 5/7

6:00 am-5:55 pm

2 stops10h 55m

Washington, D.C. Dulles Intl

Tue 5/13

7:50 am-5:15 pm

2 stops10h 25m

$299

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 6/12

6:36 pm-12:25 pm

1 stop16h 49m

Washington, D.C. Dulles Intl

Sun 6/15

7:45 am-5:42 pm

1 stop10h 57m

$305

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Fri 5/23

8:02 pm-9:00 pm

2 stops23h 58m

Washington, D.C. Dulles Intl

Mon 5/26

3:13 pm-7:12 pm

1 stop4h 59m

$359

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 5/22

8:06 pm-11:53 am

1 stop14h 47m

Washington, D.C. Dulles Intl

Mon 5/26

3:13 pm-7:12 pm

1 stop4h 59m

$376

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 4/26

7:06 pm-12:25 am

1 stop4h 19m

$94

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 4/10

9:14 am-4:23 pm

1 stop6h 09m

$114

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Fri 5/16

12:10 pm-8:57 pm

1 stop7h 47m

$148

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 5/29

6:30 pm-11:53 am

1 stop16h 23m

$150

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 12 results
1
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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 March 21, 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 June is currently the most expensive (average of $385). 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 March 28, 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.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 March 28, 2025.
Read reviews from past customers who have flown Southwest, Delta and Avelo Airlines from Galveston to Washington, D.C.. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,274 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,897 reviews
Southwest
8.1
Very good
4,274 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Avelo Airlines
7.5
Good
Southwest
8.1
Very good
4,274 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Qatar Airways
7.4
Good
3,538 reviews
Southwest
8.1
Very good
4,274 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Allegiant Air
7.3
Good
731 reviews
Southwest
8.1
Very good
4,274 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.6

Food

7.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 $94. However, be on the lookout for offers from American Airlines and Avelo 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 June is currently the most expensive (average of $385). 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
Alexandria
Fairfax
Tysons
Springfield
Rockville
Woodbridge
Gaithersburg
Fredericksburg
Linthicum Heights
Silver Spring
Falls Church
Laurel
Easton
Herndon
Sterling
Bowie
Gettysburg
National Harbor
Oxon Hill

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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$72Average$191FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$241Average$367FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$248Average$390FlexibilityNo cancel feeOn-time69%
DeltaCheapest$267Average$370FlexibilityNo cancel feeOn-timeN/A
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