WAS - BRU

$317 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 4/27. 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
$576
Typical prices: $957-$580
Scandinavian Airlines
Τετ 4/15Τετ 4/22
IAD - BRU • 2 stops
Cheapest non-stop
$985
Typical prices: $1,677-$968
Brussels Airlines
Τρι 5/12Τρι 5/26
IAD - BRU • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Lufthansa's Premium Economy offers more space and bags.
United's Economy Plus seats have extra legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $576 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines and Brussels Airlines. Average duration is 7h 47m
Direct flights
Direct flights
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Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $480 (round-trip)
Shortest trip • 10h 15m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 31% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 23% price drop
Most popular
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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

Τετ, Απρ 15 - Τετ, Απρ 22
Scandinavian Airlines Logo
12:45 pm - 10:40 am
IAD
-
BRU
15h 55m
2 stops
Scandinavian Airlines Logo
10:20 am - 5:00 pm
BRU
-
IAD
12h 40m
1 stop
$576Scandinavian Airlines
Τετ, Σεπ 9 - Τετ, Σεπ 23
Scandinavian Airlines Logo
8:20 pm - 2:35 pm
IAD
-
BRU
12h 15m
1 stop
Scandinavian Airlines Logo
5:45 am - 5:00 pm
BRU
-
IAD
17h 15m
1 stop
$577Scandinavian Airlines
Κυρ, Απρ 26 - Τρι, Μαϊ 5
Scandinavian Airlines Logo
8:20 pm - 2:35 pm
IAD
-
BRU
12h 15m
1 stop
Scandinavian Airlines Logo
3:15 pm - 5:00 pm
BRU
-
IAD
31h 45m
1 stop
$578Scandinavian Airlines
Πεμ, Απρ 9 - Παρ, Απρ 17
Turkish Airlines Logo
1:20 pm - 5:50 pm
IAD
-
BRU
22h 30m
1 stop
Turkish Airlines Logo
2:25 pm - 11:35 am
BRU
-
IAD
27h 10m
1 stop
$581Turkish Airlines
Παρ, Μαϊ 8 - Παρ, Μαϊ 15
Multiple Airlines Logo
7:30 am - 12:55 pm
BWI
-
BRU
23h 25m
2 stops
Multiple Airlines Logo
1:50 pm - 8:07 am
BRU
-
BWI
24h 17m
2 stops
$703Multiple Airlines
Δευ, Μαϊ 4 - Δευ, Μαϊ 11
British Airways Logo
9:30 pm - 9:55 am
BWI
-
BRU
30h 25m
1 stop
British Airways Logo
8:50 pm - 7:40 pm
BRU
-
BWI
28h 50m
1 stop
$709British Airways
Κυρ, Απρ 12 - Παρ, Απρ 17
Icelandair Logo
8:30 pm - 12:55 pm
BWI
-
BRU
10h 25m
1 stop
Icelandair Logo
1:50 pm - 7:25 pm
BRU
-
BWI
11h 35m
1 stop
$717Icelandair
Πεμ, Απρ 9 - Παρ, Απρ 17
Icelandair Logo
8:30 pm - 12:55 pm
BWI
-
BRU
10h 25m
1 stop
Icelandair Logo
1:50 pm - 7:25 pm
BRU
-
BWI
11h 35m
1 stop
$721Icelandair
Τετ, Απρ 22 - Τετ, Απρ 29
British Airways Logo
5:31 pm - 8:25 pm
DCA
-
BRU
20h 54m
2 stops
British Airways Logo
9:15 pm - 4:45 pm
BRU
-
DCA
25h 30m
2 stops
$723British Airways
Δευ, Απρ 20 - Τρι, Απρ 28
Multiple Airlines Logo
9:59 pm - 1:15 pm
BWI
-
BRU
33h 16m
3 stops
Multiple Airlines Logo
9:40 am - 8:07 am
BRU
-
BWI
28h 27m
2 stops
$740Multiple Airlines
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 April.

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 $679 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, Wednesday 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 Sunday 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 October, where tickets cost $585 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,048 and $1,002 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 2 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 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$317
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Baltimore 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 3 days, the lowest price for a flight from Washington, D.C. to Brussels Bruxelles-National Airport was $317 for a one-way ticket and $576 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?

    SWISS, Air Canada, 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?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Washington, D.C. and Brussels, with oneworld 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 Turkish Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Brussels are United Airlines and Turkish Airlines. With an average price for the route of $1,023 and an overall rating of 7.4, United Airlines is the most popular choice. Turkish Airlines is also a great choice for the route, with an average price of $651 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 $456 or less one-way and $1,163 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

United Airlines

United Airlines

Tuesday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Wednesday

United Airlines

United Airlines

Thursday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Friday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Saturday

United 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

United Airlines

United Airlines

Tuesday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Wednesday

United Airlines

United Airlines

Thursday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Friday

Brussels Airlines,United Airlines

Brussels Airlines,United Airlines

Saturday

United 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
United AirlinesOverall score based on 9500 reviews
7.1Entertainment
7.7Boarding
8.1Crew
6.6Food
7.3Comfort
Airline reviews

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

8.0 ExcellentMatthew, Mar 2026
IAD - CMH
Read more United Airlines reviews

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Crew members were excellent. The seat wasn’t the best as well as a food options.

5 of my 7 pieces of luggage are missing and they cant call to find out where it is. I have to fill out a form and wait for them to mail it to me in several days (if they find it). That does not work for my travel itinerary. I need my full ticket cost refunded please.

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

The crew was friendly, the flight was pleasant. Thank you for your service!

Our trip plan from Kayak stated we were flying SAS. That was not true. The first leg was a Delta flight. We wasted 25 minutes before finding out to check in with the correct airline. Then our SAS flight for the second leg arrived 25 minutes late, and our third leg flight with SAS closed the gate knowing the flight delay was SAS’s fault, and that this flight would only be backed up 5 minutes. The final kicker was that between Delta and SAS, they lost all our checked luggage.

Flight was completely full January 9th? I problem i had the stewardess was bumping into me constantly walking by? very annoying.. on Austrian air I dint have this issue at all...

Amazing! Everyone was so nice and the food was so good!!

Terrible customer service. The flight attendants were rude. We experienced significant turbulence for a large portion of the flight and there was very little check in from the flight deck. The space was extremely limited to the point where it felt like torture. Never again

I was surprised how good an American airline can be - I was really impressed.

Excellent service throughout. Airport process is quick and easy. Very courteous staff. Great service in the plane! Just outstanding punctuality and service overall!!

I flew economy class. Seats were very good and the crew was excellent

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

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

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

Well, I think we left close to on time. Crew was “eh”.

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

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.

They specifically asked about my flight from bordeaux to Dublin, which was fine. A little lacking but for a 1 and a half hour flight - it was more than enough. I transferred at Dublin and went to Newark. And wow that flight was incredible.

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

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

Too cramped up for the better seats I paid for.

I didn’t like my seat in my return flight from Montreal to Orlando at all; considering I paid extra for better seats. That middle seat was cramped up way too much.

Suitcase didn’t arrive to Stockholm. Chairs y comfy and not even water is offered

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

I never board the flight. My visa was delayed and when I tried calling Kayak, no one answer and I still have not heard from anyone.

All great. Very efficient. Good emails that kept us in the know

Original flight was canceled, booked another one and find out when checking I was on the waiting list. Horrible experience

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

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

Information on your arrival and departure airports