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Dulles Intl

$135+ Cheap flights from Hobby (HOU) 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — IAD
Feb 9 — Feb 161
Sun 2/9
Sun 2/16
1 adult, Economy
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The best prices from Houston Hobby to Washington, D.C. Dulles Intl are usually found in September or February, booked 50 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Hobby to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Hobby (HOU) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(Delta)

One-way from

$135
(Mytrip)

Popular in

November

Cheapest in

September

Average price

$328
Provider with most accurate pricing for Houston Hobby-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Houston Hobby-Washington, D.C. Dulles Intl flights.
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From Houston Hobby to Washington, D.C. Dulles Intl
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One-way flight from Houston Hobby to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 5% potential increase in price ($23 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 February 2025
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Find flight deals from Hobby to Dulles Intl

Cheapest flights from Hobby to Dulles Intl
Explore the most affordable flight options available from Hobby to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2025.

This Delta deal was found by Cheapflights users on 2/4. 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 3/12:57 pmHOU - IAD
1 stop5h 08mDelta
Sat 3/87:25 amIAD - HOU
1 stop7h 47mDelta
Deal found 2/4$289
This Cheapflightsfares deal was found by Cheapflights users on 2/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/296:35 pmHOU - IAD
1 stop16h 12mSun Country Air
Sun 6/112:45 pmIAD - HOU
1 stop7h 18mSun Country Air
Deal found 2/4$348
This Southwest deal was found by Cheapflights users on 2/4. 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 2/253:20 pmHOU - IAD
1 stop6h 45mSouthwest
Wed 2/2611:10 amIAD - HOU
2 stops11h 00mSouthwest
Deal found 2/4$358
This American Airlines deal was found by Cheapflights users on 2/3. 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 2/277:00 amHOU - IAD
1 stop8h 12mAmerican Airlines
Sun 3/25:13 pmIAD - HOU
1 stop7h 37mAmerican Airlines
Deal found 2/3$384

Find flights from Hobby to Dulles Intl within your budget

Customize your flight search to find flights from Hobby 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 February 4, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 3/1

2:57 pm-9:05 pm

1 stop5h 08m

Washington, D.C. Dulles Intl

Sat 3/8

7:25 am-2:12 pm

1 stop7h 47m

$289

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 5/29

6:35 pm-11:47 am

1 stop16h 12m

Washington, D.C. Dulles Intl

Sun 6/1

12:45 pm-7:03 pm

1 stop7h 18m

$348

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Tue 2/25

3:20 pm-11:05 pm

1 stop6h 45m

Washington, D.C. Dulles Intl

Wed 2/26

11:10 am-9:10 pm

2 stops11h 00m

$358

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 2/27

7:00 am-4:12 pm

1 stop8h 12m

Washington, D.C. Dulles Intl

Sun 3/2

5:13 pm-11:50 pm

1 stop7h 37m

$384

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 2/20

12:22 pm-9:05 pm

1 stop7h 43m

$135

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Mon 2/24

6:37 pm-12:20 am

1 stop4h 43m

$145

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Thu 5/22

8:00 pm-11:47 am

1 stop14h 47m

$189

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Sat 2/15

6:00 am-4:12 pm

1 stop9h 12m

$199

HoustonWashington, D.C.

HOU - IAD

HOUIAD

Houston Hobby

Wed 2/19

10:00 am-11:05 pm

2 stops12h 05m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Compare providers for flights from Hobby to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Hobby to Dulles Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Houston Hobby Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston Hobby Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston Hobby Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston Hobby Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston Hobby Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Hobby to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Hobby 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.

Travel insights for flights from Hobby to Dulles Intl

Get recent, data-driven insights about flights from Hobby to Dulles Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Hobby to Dulles Intl. Price data was last updated on January 31, 2025.

To ensure you get the cheapest price possible for a flight from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 50 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 Houston Hobby Airport to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 HOU to IAD?

Find hourly flight availability from Hobby 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 February 4, 2025.

It’s optimal to fly from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight in the morning.

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 February 4, 2025.
To help decide which airline to fly from Houston to Washington, D.C., see what other customers have to say about Southwest, Delta and Avelo Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,560 reviews
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,408 reviews
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Avelo Airlines
7.5
Good
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Sun Country Air
7.0
Good
385 reviews
Southwest
8.1
Very good
4,560 reviews

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Hobby 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 flying from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on Delta is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $289. Additional round-trip tickets that might be worth considering are offered by Southwest and American Airlines, with the lowest prices starting at $358 and $384, respectively. Delta is currently priced 24% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with Avelo Airlines, which is currently one of the cheapest options available, starting at $135. Delta flights start at $145 while deals on Sun Country Air start at $189 one-way.

  • Can I find deals for flights from Hobby to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Hobby to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Hobby to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hobby to Dulles Intl.

  • Can I find deals for business class flights from Hobby to Dulles Intl?

    Yes. Cheapflights offers flight deals from Hobby 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 Houston Hobby Airport to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 Houston Hobby Airport?

Book flights to Houston Hobby Airport if you plan to visit one of these locations
Arlington
Fairfax
Alexandria
Springfield
Silver Spring
Rockville
Tysons
Gaithersburg
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Woodbridge
Sterling
Easton
Herndon
Bowie
Reston
National Harbor
Oxon Hill

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Alternative routes for Hobby to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Baltimore flights
Hobby to Reagan-National flights
George Bush Intcntl to Baltimore flights
George Bush Intcntl to Dulles Intl flights
George Bush Intcntl to Reagan-National flights

Top 4 airlines flying from Hobby to Dulles Intl

Discover the top 4 airlines that operate flights from Hobby 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 February 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$49Average$195FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$248Average$391FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$265Average$388FlexibilityNo cancel feeOn-time71%
DeltaCheapest$267Average$497FlexibilityNo cancel feeOn-timeN/A
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