$391 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, Feb 25 - Mon, Mar 1
Scandinavian Airlines Logo
10:20 am - 5:15 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
12h 55m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
8:30 pm - 10:50 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
32h 20m2 stops Kastrup Copenhagen Oslo Gardermoen
$598Scandinavian Airlines
Mon, Nov 9 - Sun, Nov 22
ITA Airways Logo
6:55 pm - 2:30 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
25h 35m1 stop Rome Fiumicino
ITA Airways Logo
4:30 pm - 10:45 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
12h 15m1 stop Rome Fiumicino
$598ITA Airways
Thu, Apr 8 - Fri, Apr 16
Scandinavian Airlines Logo
10:20 am - 4:50 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
12h 30m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
8:20 pm - 7:50 pmIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
17h 30m1 stop Kastrup Copenhagen
$599Scandinavian Airlines
Fri, Nov 20 - Thu, Nov 26
United Airlines Logo
11:55 am - 2:30 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
8h 35mnonstop
United Airlines Logo
12:37 pm - 8:05 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
13h 28m1 stop Newark
$728United Airlines
Mon, Nov 9 - Sun, Nov 22
Lufthansa Logo
8:25 am - 2:35 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
12h 10m1 stop Frankfurt am Main
Lufthansa Logo
5:45 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 30mnonstop
$769Lufthansa
Thu, Nov 19 - Sat, Nov 28
Lufthansa Logo
8:25 am - 3:55 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
13h 30m1 stop Frankfurt am Main
Lufthansa Logo
5:45 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 30mnonstop
$771Lufthansa
Sun, Nov 22 - Wed, Dec 2
United Airlines Logo
8:25 am - 2:35 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
12h 10m1 stop Frankfurt am Main
United Airlines Logo
5:45 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 30mnonstop
$785United Airlines
Wed, Nov 25 - Wed, Dec 2
United Airlines Logo
10:30 am - 3:55 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Frankfurt am Main
United Airlines Logo
5:45 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 30mnonstop
$785United Airlines
Sat, Nov 21 - Mon, Nov 30
Brussels Airlines Logo
11:55 am - 2:30 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
8h 35mnonstop
Brussels Airlines Logo
5:45 pm - 7:15 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 30mnonstop
$791Brussels Airlines
Fri, Mar 12 - Thu, Jun 10
Brussels Airlines Logo
11:55 am - 2:30 pmBRU  Brussels Bruxelles-National-IAD Washington, D.C. Dulles Intl
8h 35mnonstop
Brussels Airlines Logo
5:35 pm - 7:25 amIAD  Washington, D.C. Dulles Intl-BRU Brussels Bruxelles-National
7h 50mnonstop
$793Brussels 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 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 $851. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $960 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 February, where tickets cost $645 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 May with an average price of $707.

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 $913 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 $913.

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 $781 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 3 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low season

February

Cheapest flight

$391
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Brussels Airport to Washington Dulles Airport

FAQs - booking Washington Dulles Airport flights

  • 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 $942. The cheapest price found on KAYAK in the last 2 weeks cost $583 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 $1,794

  • 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.
7.3
Brussels AirlinesOverall score based on 438 reviews
7.9Crew
7.4Boarding
7.1Comfort
6.2Entertainment
6.4Food
Airline reviews

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

2.0 MediocreAbhisek, Aug 2026
Read more Brussels Airlines reviews

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.

Worst boarding experience, flight extremely delayed causing super tight connect and deplaning was a disaster as ppl were pushing and shoving to get off. Then after flying over 8 hours had to get off a job to next flight. Limited beverage service in Business class (water or white wine) no food. The plane was very cold (temperature) so uncomfortable

The business class service was very good. The crew was helpful and the food was enjoyable. Boarding was well organized.

Entertainment was great. Seats were good. They did not have my pre-ordered hot food product available but did comp me something cold in place of the item.

No water or beverage was provided. I had to ask for water. The sole flight attendant had more interest in selling the credit card. In addition when we got to Dulles the plane and gate were misaligned and it took at least 15 minutes to get off the plane.

Flight was delayed almost an hour because the cleaning crew broke one of the bathroom doors.

When we boarded we were treated with care and it never stopped. Got towels before breakfast and after snacks was a lovely touch!

The flight crew was the worst I've experienced. If they worked for me, I would fire them immediately. They never smiled, they seemed angry and avoided passengers as much as possible. The food was not edible, and my luggage was lost. I will never fly United again!!!

Fought with Lufthansa was poor, seats are uncomfortable, food was bad and luggage did not arrive to IA

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

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.

Economy plus on a long flight with Lufthansa was wonderful. Service starts with a pillow, blanket, slippers and care package waiting on your seat. An it just gets better from there.

The Linate Milano flight was delayed. Landed at Frankfort at 12:10. Then took the bus on the tarmac and the bus ride was about 20 minutes due to the airport traffic. Got off bus went to passport control, used the kiosk scanned passport, took photo and finger prints and proceeded to wait in line. I asked the attendant that I had a connecting flight at 12:50 his respond was you have to ask the other travelers in line to let you go ahead. There should be a better system. Passed passport control and the gate was at Z69 to the other end of airport. Ran there out breath, I was last person to board due to a mechanical:electrical issue plane took off 2 hours later. Lufthansa need to a better job with international connecting flight. A 1-15 minutes is not enough considering the doors typically close 15 minutes prior to take off. So the window is reduced to 1 hour with all you have to go through with a slight delay it is not enough time. The crew on the flight was excellent and received exceptional customer service.

Horrible. Would not assist w hotel or new flights when Catania leg canceled

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

Traveling to a place near Dulles Intl?

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Winchester
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Greenbelt
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Lutherville Timonium

More options for your flight to Dulles Intl