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Dulles Intl

$134+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — IAD
may. 4 — may. 111
dom. 5/4
dom. 5/11
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 abril 29, 2025.

Round-trip from

$289
(Delta)

One-way from

$134
(Trip.com)

Popular in

November

Cheapest in

September

Average price

$387
From Galveston to Washington, D.C. Dulles Intl
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One-way flight from Galveston to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 7% potential increase in price ($29 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 April 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 abril 29, 2025.

This Delta deal was found by Cheapflights users on 4/29. 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.
jue. 5/296:42 pmHOU - IAD
1 stop4h 46mDelta
mié. 6/47:05 amIAD - HOU
1 stop7h 46mDelta
Deal found 4/29$289
This Sun Country Air deal was found by Cheapflights users on 4/29. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/228:06 pmHOU - IAD
1 stop14h 47mSun Country Air
dom. 5/2512:49 pmIAD - HOU
1 stop22h 38mSun Country Air
Deal found 4/29$305
This Mytrip deal was found by Cheapflights users on 4/28. 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.
vie. 6/137:01 pmHOU - IAD
2 stops24h 52mMultiple Airlines
dom. 6/157:45 amIAD - HOU
1 stop10h 57mMultiple Airlines
Deal found 4/28$314
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/315:25 amHOU - IAD
1 stop6h 55mSouthwest
dom. 8/35:50 amIAD - HOU
1 stop6h 50mSouthwest
Deal found 4/29$353
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/232:33 pmHOU - IAD
2 stops29h 27mAllegiant Air
lun. 5/263:13 pmIAD - HOU
1 stop4h 59mAllegiant Air
Deal found 4/29$390
This American Airlines deal was found by Cheapflights users on 4/29. 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.
vie. 5/305:00 amHOU - IAD
2 stops7h 22mAmerican Airlines
dom. 6/16:17 amIAD - HOU
1 stop8h 41mAmerican Airlines
Deal found 4/29$436

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 abril 29, 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

jue. 5/29

6:42 pm-12:28 am

1 stop4h 46m

Washington, D.C. Dulles Intl

mié. 6/4

7:05 am-1:51 pm

1 stop7h 46m

$289

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

jue. 5/22

8:06 pm-11:53 am

1 stop14h 47m

Washington, D.C. Dulles Intl

dom. 5/25

12:49 pm-10:27 am

1 stop22h 38m

$305

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

vie. 6/13

7:01 pm-8:53 pm

2 stops24h 52m

Washington, D.C. Dulles Intl

dom. 6/15

7:45 am-5:42 pm

1 stop10h 57m

$314

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

lun. 7/14

5:00 am-10:59 am

1 stop4h 59m

Washington, D.C. Dulles Intl

vie. 7/18

6:44 pm-11:49 pm

1 stop6h 05m

$353

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

lun. 6/16

3:25 pm-11:30 pm

1 stop7h 05m

Washington, D.C. Dulles Intl

lun. 6/23

5:00 am-1:20 pm

1 stop9h 20m

$387

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

vie. 5/23

2:33 pm-9:00 pm

2 stops29h 27m

Washington, D.C. Dulles Intl

lun. 5/26

3:13 pm-7:12 pm

1 stop4h 59m

$390

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

lun. 6/2

10:40 am-8:17 pm

1 stop8h 37m

$134

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

jue. 5/8

6:10 pm-12:23 pm

1 stop17h 13m

$143

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

mar. 5/20

6:00 am-11:58 am

1 stop4h 58m

$145

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

mar. 6/17

10:30 am-10:45 pm

2 stops11h 15m

$206

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 12 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 April 25, 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 $373). 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 abril 29, 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 abril 29, 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
8.0
Very good
4,295 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,929 reviews
Southwest
8.0
Very good
4,295 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Avelo Airlines
7.5
Good
Southwest
8.0
Very good
4,295 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Qatar Airways
7.4
Good
3,563 reviews
Southwest
8.0
Very good
4,295 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,295 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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 Avelo Airlines, with whom users have recently found tickets for as low as $134. However, be on the lookout for offers from Sun Country Air and Delta, 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 $373). 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
Alexandria
Arlington
Woodbridge
Tysons
Fairfax
Springfield
Rockville
Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Sterling
Bowie
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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$49Average$218FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$236Average$364FlexibilityNo cancel feeOn-time71%
DeltaCheapest$240Average$343FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$247Average$390FlexibilityNo cancel feeOn-time69%

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