WAS - BRU

$233 Find Cheap Flights from Washington, D.C. to Brussels

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Brussels departing on 9/1. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Brussels Bruxelles-National Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Brussels.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Brussels.
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Everything you should know

Cheapest round-trip
$606
Typical prices: $830-$937
Icelandair
Sat 11/7Sun 11/15
BWI - BRU • 1 stop
Cheapest non-stop
$881
Typical prices: $642-$912
United Airlines
Mon 11/9Tue 11/17
IAD - BRU • Non-stop
Top airlines
Cheapest • from $606 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines and Brussels Airlines. Average duration is 7h 42m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $480 (round-trip)
Shortest trip • 10h 05m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 15% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 54% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Brussels!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Washington, D.C. to Brussels (WAS-BRU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Brussels 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 Washington, D.C. to Brussels

Sat, Nov 7 - Sun, Nov 15
Icelandair Logo
7:40 pm - 11:55 am
BWI
-
BRU
10h 15m
1 stop
Icelandair Logo
12:50 pm - 6:40 pm
BRU
-
BWI
11h 50m
1 stop
$606Icelandair
Sat, Nov 7 - Sun, Nov 15
Icelandair Logo
7:40 pm - 11:55 am
BWI
-
BRU
10h 15m
1 stop
Icelandair Logo
12:50 pm - 6:40 pm
BRU
-
BWI
11h 50m
1 stop
$607Icelandair
Sat, Nov 7 - Sun, Nov 15
Icelandair Logo
7:40 pm - 11:55 am
BWI
-
BRU
10h 15m
1 stop
Icelandair Logo
12:50 pm - 6:40 pm
BRU
-
BWI
11h 50m
1 stop
$608Icelandair
Thu, Oct 8 - Mon, Oct 19
Scandinavian Airlines Logo
8:20 pm - 7:50 pm
IAD
-
BRU
17h 30m
1 stop
Scandinavian Airlines Logo
5:45 am - 5:00 pm
BRU
-
IAD
17h 15m
1 stop
$685Scandinavian Airlines
Sat, Aug 29 - Mon, Sep 14
Multiple Airlines Logo
8:30 pm - 9:00 am
IAD
-
BRU
30h 30m
2 stops
Multiple Airlines Logo
7:05 am - 3:30 pm
BRU
-
IAD
14h 25m
1 stop
$687Multiple Airlines
Sun, Oct 4 - Fri, Oct 9
Scandinavian Airlines Logo
8:20 pm - 2:35 pm
IAD
-
BRU
12h 15m
1 stop
Scandinavian Airlines Logo
8:30 pm - 5:00 pm
BRU
-
IAD
26h 30m
1 stop
$689Scandinavian Airlines
Fri, Nov 27 - Sun, Dec 6
Multiple Airlines Logo
9:05 pm - 4:35 pm
IAD
-
BRU
13h 30m
1 stop
Multiple Airlines Logo
11:50 am - 8:35 pm
BRU
-
IAD
14h 45m
1 stop
$690Multiple Airlines
Wed, Sep 9 - Wed, Sep 23
ITA Airways Logo
4:30 pm - 10:45 am
IAD
-
BRU
12h 15m
1 stop
ITA Airways Logo
6:55 pm - 2:30 pm
BRU
-
IAD
25h 35m
1 stop
$696ITA Airways
Mon, Nov 23 - Fri, Nov 27
Delta Logo
8:30 pm - 10:55 am
DCA
-
BRU
32h 25m
1 stop
Delta Logo
12:55 pm - 11:18 pm
BRU
-
DCA
16h 23m
1 stop
$733Delta
Tue, Dec 1 - Sun, Dec 6
Delta Logo
12:05 pm - 10:55 am
DCA
-
BRU
16h 50m
1 stop
Delta Logo
8:05 am - 6:05 pm
BRU
-
DCA
16h 00m
2 stops
$735Delta
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Brussels flights

Get data-powered insights and trends into flights from Washington, D.C. to Brussels to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. to Brussels Bruxelles-National 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 Washington, D.C. to Brussels Bruxelles-National Airport departing in November.

What is the cheapest Washington, D.C. to Brussels Bruxelles-National Airport flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Washington, D.C. to Brussels Bruxelles-National Airport costs $875 on the route between Washington, D.C. Dulles Intl Airport (IAD) and Brussels Bruxelles-National Airport (BRU). It is also the most popular route.

What’s the cheapest day of the week to fly from Washington, D.C. to Brussels?

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

For Washington, D.C. to Brussels, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Brussels back to Washington, D.C., the best deals are generally found on Wednesday, with Thursday being the most expensive.

What is the cheapest month to fly from Washington, D.C. to Brussels Bruxelles-National Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Brussels Bruxelles-National 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 Washington, D.C. to Brussels Bruxelles-National Airport is September, where tickets cost $199 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $721 and $591 respectively.

How far in advance should I book a flight from Washington, D.C. to Brussels Bruxelles-National Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. to Brussels Bruxelles-National 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 Washington, D.C. to Brussels Bruxelles-National Airport, you should book around 5 weeks before departure, which saves you about 15% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Expert advice

Expert advice for your flight from Washington, D.C. to Brussels

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Marisa Garcia

Marisa Garcia

Expert on Brussels Airlines

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Good to know

Low seasonFebruary
Cheapest flight$233
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 28% lower on average.
Flight from Washington Dulles Airport to Brussels Airport

When to book flights from Washington, D.C. to Brussels

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Brussels 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 Washington, D.C. to Brussels flights

  • What is the cheapest flight from Washington, D.C. to Brussels Bruxelles-National Airport?

    In the last 5 days, the lowest price for a flight from Washington, D.C. to Brussels Bruxelles-National Airport was $233 for a one-way ticket and $606 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Brussels?

    Yes, you’ll need a passport to travel to Brussels from Washington, D.C..

  • Which airports will I be using when flying from Washington, D.C. to Brussels?

    On your way to Brussels, you’ll fly out from one of these Washington, D.C. airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You’ll be landing at Brussels Bruxelles-National.

  • Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to Brussels?

    Iberia, Finnair, KLM, and American Airlines offer inflight Wi-Fi service on the Washington, D.C. to Brussels flight route.

  • Which aircraft models fly most regularly from Washington, D.C. to Brussels?

    The Boeing 777-300ER is the aircraft model that flies most regularly on the Washington, D.C. to Brussels flight route.

  • Which airline alliances offer flights from Washington, D.C. to Brussels?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Washington, D.C. and Brussels, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Washington, D.C. to Brussels?

    There are nonstop flights from Washington, D.C. to Brussels on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Brussels are United Airlines and Scandinavian Airlines. With an average price for the route of $1,166 and an overall rating of 7.4, United Airlines is the most popular choice. Scandinavian Airlines is also a great choice for the route, with an average price of $578 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Brussels?

    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 Washington, D.C. to Brussels.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Brussels?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels from Washington, D.C. 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 Washington, D.C. to Brussels?

    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 Brussels with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Brussels?

    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 Brussels from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. to Brussels Bruxelles-National Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $760 or less one-way and $1,235 or less round-trip.

Prefer to fly direct from Washington, D.C. to Brussels?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. to Brussels Bruxelles-National.
Find which airlines fly direct from Washington, D.C. to Brussels Bruxelles-National Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. to Brussels Bruxelles-National

Monday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Thursday

United Airlines

United Airlines

Friday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Saturday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Sunday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

See more direct flights

Direct returns

Brussels Bruxelles-National to Washington, D.C.

Monday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Thursday

United Airlines

United Airlines

Friday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Saturday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Sunday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Washington, D.C. to Brussels

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Brussels. 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 Washington, D.C. to Brussels? 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
Scandinavian AirlinesOverall score based on 1860 reviews
7.3Comfort
8.0Crew
6.7Entertainment
7.7Boarding
6.7Food
Airline reviews

Old plane, food not that great - lacked taste. Crew was nice but strict.

4.0 OkayAnonymous, Jun 2026
JFK - CPH
Read more Scandinavian Airlines reviews

Old plane, food not that great - lacked taste. Crew was nice but strict.

Terrible airlines, kept lying to me about the fact that my connection flight was cancelled. Left me hanging until last min. NEVER AGAIN

Mediocre. Maybe due to Economy light. Staff was great. Space shrunk, not for me, and definitely not for Vikings. Food was decent. Assistance lagging. There was a possibility to upgrade to Premium economy, however my bid was immediately classified as low and not even considered (though well over minimum bid). Thus I was no bleeding dry.

Upon departing and landing, the man seating in front of me had his seat leaning back. Taking off nobody told him anything. Landing someone from the crew said something but the passenger ignored him and nobody followed up. Felt a bit unsecured. If this that is some of the basics are missed, what else was overlooked?

On time, reasonably comfortable for economy, decent food. All in all a very good experience.

Every flight got canceled or delayed. Customer service was awful.

The stewardess was incredibly rude. The gave you only one drink with dinner.

Crew was unresponsive to request for a soda. Food was horrible and I’d venture to guess many others thought so as well by the amount that they trashed. Made me sick to my stomach and ended up in bed the remainder of the day once we arrived. Screaming child for 3/4 of the almost 8 hour flight. Crew had no headphones whatsoever for free or purchase. Seating way too tight and we upgraded our seats. I do not see us ever flying this airline again.

Nothing special or negative. Pretty typical flight…no freebies in the way of food etcetera, but none were expected.

Boarding and crew were excellent. Seat could have been more comfortable (hard on lower back).

Staff could’ve been a little more cordial. The men were much more friendlier than the women. My daughter and I also missed the 2nd to last meal as we were sleeping but that is on us.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

I had enough leg room. The check in was smooth. Good food

The boarding timing needs to be improved. The flight was delayed again because it took way too long to board. I was already exhausted from sleeping at the airport and spending all day there due to delay from my previous flight that connected in Chicago.

Kayak, the site I went through to book our flight, sent very unclear emails about flight changes. Kayak was incredibly unhelpful in their communications with me about this, promising to work on resolving the issue, and failing to do so. As a result, I needed to get a hotel in Brussels and am now in the process of trying to get reimbursed. On the other hand, the flight personnel in Brussels were very helpful, taking time to look into the issue and determine if they could help. I am very grateful for them and have no problems with the airline. For Kayak, however, I will never use it again and will never recommend it to anyone, and will even discourage people who consider going through that site. My worst experience ever....

The direct flight was a superb idea; please continue. The seats were less than comfortable for such a long flight.

We missed that flight, and I am hoping that we will got the refund. It was very confusing to figure out about Aer Lingus operated by American Airlines. Then we bought another more expensive ticket to travel.

The check in and boarding process was smooth, and the flight was fine.

The free WiFi was great so I could stream movies during the flight. I would like to have movies available instead of on my device. Thanks!

We had a wonderful experience with Aer Lingus. The seats were too close for the long trip. The crew was absolutely perfect. They were so caring and thoughtful! My husband did not have a good experience with Air Lingus on the phone when trying to take care of getting better seating because he is disabled and needed a wheelchair prior to the day of our flight! Mariam R. in Boston was so helpful with seating and getting help for my husband. Filip Pytka who works for OCS was extremely helpful! He made sure that we had the lift because my husband could not climb the stairs to get onto the airplane. He took us from the gate all the way down to where we needed to be.

We were an hour and a half late, which caused my rental car company to cancel my reservation. We had no car, had to take a taxi to our hotel, and then a taxi back to get a new car the next day. Sometimes lack of on-time performance can end up costing the passenger a lot of money, none of which is covered by the airline that operated the late flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Flight was ontime, clean, staff was friendly - there was turbulence but can’t avoid that (it’s a flight 😉)! The staff were attentive but would be nice if Aerlingus didn’t charge for coffee ☺️ but overall I enjoyed my flight experience and will travel with them again (Ireland’s Four star airline

Everything was better but france airlines more better than them

Good leg room for people of all sizes. Pleasent crew.

WE didint profit of food , but for the other think all was good

Spacious and clean aircraft. Good food. Economy will always be squeezed but thankfully I had an aisle seat for stretching exercises. Good selection of movies, particularly Spike Lee joint.

Unfriendly, 8 hours delayed, no lounge access even flying business. Don’t fly Brussels

On board service was decent. I like the legroom at UA that seems to be more than in other airlines

The flight went well, only during the flight from Brussels to Vilnius I would have liked if they had at least given us plain water to drink.

The crew and the flight were excellent, the food might be better!

This was absolutely one of the worst experiences of my life. I came to Europe for a 2 week trip and the airline was probably the most disorganized airline I’ve ever seen in my life. They lost my luggage. I had tracking on it for just such an occasion and told them EXACTLY where it was in the terminal and they somehow failed to get it out on the flight that night, since we were leaving for Switzerland the next day there was no way they would get it to our hotel in time. Seriously, take another airline at any cost. It’s not worth whatever you pay…you’ll end up paying a lot more in the end. My medication is in the bag and I can’t get to it and don’t know how I will get it.

I felt the overall quality of the plane and food service was less than that of their partner airlines, United. An example was wine was served in paper cups in premium economy class. There was no real silverware, napkins or a welcome kit other than a pillow and blanket.

Crew was very friendly. Need lay flat beds! More snacks

Good. Rxception is the Entertainment - movies and TV shows all out of date…

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

They cancelled our connecting flight resulting in another layover reaching our final destination 8 hours later than scheduled.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

Had a screaming child next to us. Not the airline’s fault but still annoying.

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

Everything you need to know for your flight from Washington, D.C. to Brussels

Information on your arrival and departure airports