HOU - IAD

$134 Find Cheap Flights from Houston Hobby Airport to Washington Dulles Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Hobby to Dulles Intl departing on 7/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$298
Typical prices: $225-$468
Delta
Wed 7/29Sat 8/1
HOU - IAD • 1 stop
Cheapest one-way
$134
Typical prices: $189-$410
Allegiant Air
Thu 7/16
HOU - IAD • 1 stop
Top airlines
Cheapest • from $298 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Hobby and Dulles Intl. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $263 (round-trip)
Shortest trip • 5h 37m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 40% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
Good to know
+1
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We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Hobby to Dulles Intl (HOU-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Hobby to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Hobby to Dulles Intl

Wed, Jul 29 - Sat, Aug 1
Delta Logo
6:00 am - 2:01 pm
HOU
-
IAD
7h 01m
1 stop
Delta Logo
10:58 am - 4:22 pm
IAD
-
HOU
6h 24m
1 stop
$298Delta
Sat, Aug 15 - Mon, Aug 17
Delta Logo
6:00 am - 1:43 pm
HOU
-
IAD
6h 43m
1 stop
Delta Logo
12:30 pm - 4:25 pm
IAD
-
HOU
4h 55m
1 stop
$303Delta
Thu, Jul 30 - Tue, Aug 4
Delta Logo
12:55 pm - 6:30 pm
HOU
-
IAD
4h 35m
1 stop
Delta Logo
6:00 am - 9:50 am
IAD
-
HOU
4h 50m
1 stop
$323Delta
Sat, Sep 5 - Mon, Sep 7
American Airlines Logo
12:14 pm - 6:27 pm
HOU
-
IAD
5h 13m
1 stop
American Airlines Logo
6:09 am - 11:44 am
IAD
-
HOU
6h 35m
1 stop
$327American Airlines
Wed, Jul 29 - Mon, Aug 3
Delta Logo
10:40 am - 4:46 pm
HOU
-
IAD
5h 06m
1 stop
Delta Logo
5:47 pm - 10:05 pm
IAD
-
HOU
5h 18m
1 stop
$332Delta
Thu, Aug 13 - Thu, Aug 20
Delta Logo
6:00 am - 11:33 am
HOU
-
IAD
4h 33m
1 stop
Delta Logo
12:30 pm - 4:25 pm
IAD
-
HOU
4h 55m
1 stop
$337Delta
Thu, Aug 6 - Sat, Aug 8
Delta Logo
1:13 pm - 8:55 pm
HOU
-
IAD
6h 42m
1 stop
Delta Logo
8:28 am - 4:23 pm
IAD
-
HOU
8h 55m
1 stop
$338Delta
Thu, Dec 10 - Tue, Dec 15
Delta Logo
6:00 am - 11:59 am
HOU
-
IAD
4h 59m
1 stop
Delta Logo
10:05 am - 4:30 pm
IAD
-
HOU
7h 25m
1 stop
$352Delta
Tue, Jul 21 - Tue, Jul 28
Delta Logo
6:00 am - 2:01 pm
HOU
-
IAD
7h 01m
1 stop
Delta Logo
10:21 am - 4:22 pm
IAD
-
HOU
7h 01m
1 stop
$353Delta
Sat, Aug 1 - Sat, Aug 8
Delta Logo
5:17 pm - 12:41 am
HOU
-
IAD
6h 24m
1 stop
Delta Logo
2:54 pm - 9:23 pm
IAD
-
HOU
7h 29m
1 stop
$354Delta
Booking Insights

KAYAK's insights & trends for Hobby to Dulles Intl flights

Get data-powered insights and trends into flights from Hobby to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport departing in July.

What’s the cheapest day of the week to fly from Houston Hobby Airport to Washington Dulles Airport?

The average price of all round-trip flights from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

For Houston Hobby Airport to Washington Dulles Airport, Monday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Washington Dulles Airport back to Houston Hobby Airport, the best deals are generally found on Saturday, with Monday being the most expensive.

What is the cheapest month to fly from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport is September, where tickets cost $291 (return) on average. On the other hand, the most expensive months are February and March, where the average cost of round-trip tickets is $744 and $576 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$134
Best time to beat the crowds but there is an average 78% increase in price.
Most popular time to fly and prices are also 31% lower on average.
Flight from Houston Hobby Airport to Washington Dulles Airport

When to book flights from Hobby to Dulles Intl

Are your dates flexible? Find out the best times to travel from Hobby to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Houston Hobby Airport to Washington Dulles Airport flights

  • What is the cheapest flight from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport?

    In the last 5 days, the lowest price for a flight from Houston Hobby Airport to Washington, D.C. Dulles Intl Airport was $134 for a one-way ticket and $298 for a round-trip.

  • Do I need a passport to fly between Houston Hobby Airport and Washington Dulles Airport?

    No, a passport isn't needed to fly from Houston Hobby Airport to Washington Dulles Airport. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Houston Hobby Airport to Washington Dulles Airport?

    On your way to Washington Dulles Airport, you’ll fly out from Houston Hobby. You’ll be landing at Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Houston Hobby Airport to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Houston Hobby Airport to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Houston Hobby Airport and Washington Dulles Airport.

  • Which is the best airline for flights from Houston to Washington, D.C., United Airlines or Frontier?

    The two airlines most popular with KAYAK users for flights from Houston to Washington, D.C. are United Airlines and Frontier. With an average price for the route of $435 and an overall rating of 7.4, United Airlines is the most popular choice. Frontier is also a great choice for the route, with an average price of $216 and an overall rating of 5.6.

  • How does KAYAK find such low prices on flights from Houston Hobby Airport to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Houston Hobby Airport to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Houston Hobby Airport to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Houston Hobby Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Houston Hobby Airport to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Houston Hobby Airport with another airline. Booking your flights between Houston Hobby Airport and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston Hobby Airport to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Houston Hobby Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Hobby to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Houston to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Hobby to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9929 reviews
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
6.7Food
Airline reviews

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

2.0 MediocreAnonymous, Jun 2026
TPA - IAD
Read more United Airlines reviews

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Sucks ! All three flights I was on this trip were delayed.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Flight was well orchestrated, made up time despite circling a bit all good on United. Travelers can just be so into themselves that common courtesy has gone out window for some, but that’s not on United.

Crew was kind of grumpy and there was no beverage service at all. Sodas were $4. Disappointing.

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

We were delayed three times ,and that destroyed my plans, and reservations

The worst. We never made our connection and they did absolutely nothing to help us at the airport.

The reps working at the airport counter were dumber than a second coat of paint.

Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?

Airline changed the gate from Terminal A to Terminal D which is quite far and only sent a text message few minutes before boarding. Around 50 people missed their flight and as plane didn’t wait for them.

Bad experience… crew are extremely strict with personal bags… they overcharge me coz my bag was one inch H

Well I mean u get what u pay for so 🤷‍♂️

Everything you need to know for your flight from Hobby to Dulles Intl

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