$428 Find Cheap Flights from Belgium to Washington Dulles Airport - Compare and Save

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Cheap Flights from Belgium to Dulles Intl

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Belgium to Dulles Intl

Thu, Oct 1 - Wed, Oct 14
Lufthansa Logo
6:20 am - 1:35 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
13h 15m1 stop Frankfurt am Main
Lufthansa Logo
5:45 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 30mnonstop
$678Lufthansa
Sun, Oct 18 - Sun, Oct 25
Multiple Airlines Logo
2:25 pm - 8:00 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
11h 35m1 stop Frankfurt am Main
Multiple Airlines Logo
9:10 pm - 1:40 pmIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
11h 30m1 stop Zurich
$678Multiple Airlines
Thu, Oct 1 - Tue, Oct 6
SWISS Logo
6:55 am - 4:45 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
15h 50m1 stop Zurich
SWISS Logo
5:45 pm - 2:15 pmIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
14h 30m1 stop Zurich
$679SWISS
Sat, Oct 10 - Mon, Oct 19
Lufthansa Logo
12:00 pm - 2:15 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
8h 15mnonstop
Lufthansa Logo
5:45 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 30mnonstop
$679Lufthansa
Fri, Nov 20 - Tue, Nov 24
Multiple Airlines Logo
11:55 am - 2:30 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
8h 35mnonstop
Multiple Airlines Logo
5:45 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 30mnonstop
$679Multiple Airlines
Tue, Nov 10 - Tue, Nov 17
Lufthansa Logo
10:30 am - 3:55 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Frankfurt am Main
Lufthansa Logo
5:45 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 30mnonstop
$679Lufthansa
Fri, Oct 2 - Sun, Oct 4
Brussels Airlines Logo
10:45 am - 1:30 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
8h 45mnonstop
Brussels Airlines Logo
5:35 pm - 7:25 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 50mnonstop
$684Brussels Airlines
Tue, Oct 20 - Sun, Oct 25
United Airlines Logo
10:30 am - 4:05 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
11h 35m1 stop Frankfurt am Main
United Airlines Logo
9:10 pm - 8:40 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
30h 30m1 stop Zurich
$690United Airlines
Fri, Oct 16 - Tue, Oct 20
United Airlines Logo
6:20 am - 4:05 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
15h 45m1 stop Frankfurt am Main
United Airlines Logo
1:10 pm - 8:50 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
13h 40m2 stops Boston Logan Intl Zurich
$690United Airlines
Sun, Oct 11 - Tue, Oct 20
Brussels Airlines Logo
12:00 pm - 2:15 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
8h 15mnonstop
Brussels Airlines Logo
5:45 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 30mnonstop
$700Brussels Airlines
Booking Insights

KAYAK's insights & trends for flights to Dulles Intl

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

What is the cheapest flight to Washington Dulles Airport?

In the last 5 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Brussels, at $678 return. The most popular connection is from Brussels to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $678 in the last 5 days.

What is the cheapest day to fly to Washington, D.C.?

Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Monday where round-trip tickets can be as cheap as $855. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $949 on average.

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

The cheapest month for flights to Washington, D.C. Dulles Intl Airport is November, where tickets cost $638 on average for return flights. On the other hand, the most expensive months are August and May, where the average cost of tickets from Belgium is $918 and $844 respectively. For one-way flights, the best month to travel is October with an average price of $582.

What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the morning, when round-trip flights cost $902 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the morning, which is peak travel time and where the average cost of a ticket is $902.

What is a good deal for flights to Washington, D.C. Dulles Intl Airport?

If you’re looking for cheap airfare to Washington, D.C. Dulles Intl Airport, 25% of our users found tickets to Washington, D.C. Dulles Intl Airport for the following prices or less: From Brussels Bruxelles-National Airport $878 round-trip.

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

To get a below average price, you should book around 2 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low season

February

Cheapest flight

$428
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Charleroi Brussels to Washington, D.C.

FAQs - booking Washington Dulles Airport flights

  • What is the cheapest flight to Washington Dulles Airport?

    In the last 5 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Brussels, at $678 return. The most popular connection is from Brussels to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $678 in the last 5 days.

  • How far is Washington, D.C. Dulles Intl Airport from central Washington, D.C.?

    The distance between Washington, D.C. Dulles Intl Airport and downtown Washington, D.C. is 22 miles.

  • How much is a flight to Washington, D.C.?

    On average, a flight to Washington, D.C. costs $884. The cheapest price found on KAYAK in the last 2 weeks cost $766 and departed from Brussels Bruxelles-National Airport.

  • How does KAYAK find such low prices on flights 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 to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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 is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Washington Dulles Airport

  • Looking for cheap airfare to Washington Dulles Airport? 25% of our users found round-trip tickets to Washington Dulles Airport for the following prices or less: From Brussels Bruxelles-National $2,049
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Reviews of the top 3 airlines serving from Belgium to Dulles Intl

 
Need help choosing which airline to fly with 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 10214 reviews
7.1Entertainment
7.7Boarding
8.1Crew
6.7Food
7.3Comfort
Airline reviews

Awful!!!. I do not recommend United. The flight staff are unhappy and don't attempt to make the passengers feel comfortable or welcome. The food is not edible, and the seats are miserable. My expensive luggage was destroyed, and the ticket prices are too much for the experience.

4.0 OkayJohn, Sep 2026
Read more United Airlines reviews

Awful!!!. I do not recommend United. The flight staff are unhappy and don't attempt to make the passengers feel comfortable or welcome. The food is not edible, and the seats are miserable. My expensive luggage was destroyed, and the ticket prices are too much for the experience.

On time, easy boarding. Anytime you sit in an economy seat, it’s uncomfortable. New plane and the bathrooms were in the galley at the back of the plane which seemed odd.

Did not like the check in guy quibbling over a couple pounds at the luggage weigh in

Just having a little bit more legroom would've been nice.

This is related to my second leg of the flight, from Washington DC to SFO. I understand things happen, but I got home at 3 am for a 12:59 am landing. I live 10 min from the airport. Bridge breaks when a few rows of the plane are off? Maintenance didn’t catch that?

Great Brasilia aircraft - not a Boeing 757 like the next part of the flight. Flight from MCI to IAD was great, on-time, comfortable, did I mention that? The flight from IAD to EDI was painful. One of the reasons I won't fly United again? Boeing 757, with a seat pitch and material that was horrendous. Worst aircraft ever, made worse by United sardine-can tight seating. Oh, and the connection window, 45 minutes, really? At IAD, in different concourses? What idiot came up with that flight scenario? Happily, (for me and my travel insurance people) the flight was late (reminiscent of American Airlines). The crew was professional and courteous.

great starting with the business Class that's was Amazing . thank you United Airlines and brussels Airlines

Best flight in years. Pre-boarding because of my mobility issues. Good food and beverage from beginning to end. Excellent choice of films. Good service by stewardesses. Comfortable seats. I could lie down!

No drink service but there was no N/A as an option to choose. Seats were extremely tight. I am under 5.5 and I bumped my knees have no idea how taller people could manage.

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Terrible flight. 1. They’ve only one option for food. 2. Seats are very cramped and screens are tiny 3. No pillow or blanket provided on long haul flight

Too cramped up for the better seats I paid for.

Bad baggage and people management at boarding forcing me to dispatch my bad despite being the perfect size and respecting everything perfectly, whereas many did not and many free empty spots on the plane as usual… making me loose time and my planned bus at arrival to go to Geneva. Costing me 100 euros extra! So Brussels airlines needs to refund me

Crew was enthusiastic. Meal was surprisingly good. They came to give water very frequently. Negative that the seat reclining didn't work

That was a short flight by the only time I could actually sleep

How can a national carrier and part of Lufthansa group not even provide complimentary water and a snack in such a long flight ?

Terrible seats. Whoever designed the seats should try taking a long flight in it themselves.

Food quality is deteriorating each time, last year was very good. I avoid the plane food lately.

Been flying on various airlines, all over the world, for 50+ years. The food on Brussels Air was easily the worst I ever endured.

my husband's monitor did not work. there was a visibly ill family in my husband's row.

The entertainment system was not working, they tried restarting it couple of times but it did not fix it. We were told to contact Lufthansa costumer service after the flight for some kind of reimbursement. When costumer service was contacted I was told no reimbursement for entertainment system malfunction per policy.

I was never able to use this flight. I booked my flight through KAYAK, using cheapfaresflights, and the agency did not book the ticket correctly. When I went to check in for my flight in Rome, my details had changed. My name was incorrect , and the itinerary was not what I had paid for. I was unable to board the flight and I had to purchase a second ticket at considerable expense. Unfortunately, no one at KAYAK or Cheapfaresflights was able to help me. They both shifted the blame on United Airlines, United Airlines was able to provide me a full detail that the error occurred on the travel agencies side. I consider this fraud and will pursue it further.

Cancelled 90 min AFTER Departure! We had to deplane and wait another hour plus for the flight to be shown as cancelled for the customer service team. There were many many angry customers.

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

Had a few open seats and could use it for a great rest ful journey

It was very good. Service was friendly and efficient, and food was good.

We left 1.5 hours late therefore missing my connection. The airline didn’t give vouchers.

Food could have something without dairy, I couldn't eat anything. Tv for both seats was malfunctioning. They have one bottle of ginger ale for entire plane.... and I paid extra for these seats...very disappointed

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Winchester
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More options for your flight to Dulles Intl