$211 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 8/6. 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

KAYAK searches hundreds of travel sites at once for deals on flights 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.
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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Flights Deals

Cheap Flights from Washington, D.C. to Brussels (IAD-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

Tue, Oct 7 - Tue, Oct 14
Scandinavian Airlines Logo
10:05 pm - 6:30 pmIAD-BRU
14h 25m1 stop
Scandinavian Airlines Logo
12:40 pm - 7:59 pmBRU-IAD
37h 19m2 stops
$326Scandinavian Airlines
Find Deal
Wed, Oct 8 - Tue, Oct 14
Scandinavian Airlines Logo
10:05 pm - 3:20 pmIAD-BRU
11h 15m1 stop
Scandinavian Airlines Logo
7:10 pm - 7:59 pmBRU-IAD
30h 49m1 stop
$330Scandinavian Airlines
Find Deal
Wed, Oct 8 - Tue, Oct 14
Scandinavian Airlines Logo
10:05 pm - 3:20 pmIAD-BRU
11h 15m1 stop
Scandinavian Airlines Logo
8:30 pm - 7:59 pmBRU-IAD
29h 29m1 stop
$334Scandinavian Airlines
Find Deal
Mon, Aug 4 - Wed, Aug 13
Icelandair Logo
11:15 pm - 12:50 pmIAD-BRU
31h 35m1 stop
Icelandair Logo
1:50 pm - 10:10 pmBRU-IAD
14h 20m1 stop
$483Icelandair
Find Deal
Tue, Aug 19 - Tue, Sep 9
Icelandair Logo
11:15 pm - 12:50 pmIAD-BRU
31h 35m1 stop
Icelandair Logo
1:50 pm - 7:20 pmBRU-IAD
11h 30m1 stop
$488Icelandair
Find Deal
Tue, Dec 2 - Tue, Dec 9
United Airlines Logo
5:15 pm - 8:55 amIAD-BRU
33h 40m1 stop
United Airlines Logo
10:00 am - 11:16 amBRU-IAD
31h 16m1 stop
$533United Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
United Airlines Logo
5:45 pm - 7:15 amIAD-BRU
7h 30mnonstop
United Airlines Logo
10:00 am - 7:39 pmBRU-IAD
15h 39m1 stop
$540United Airlines
Find Deal
Tue, Aug 12 - Tue, Oct 14
Lufthansa Logo
5:45 pm - 7:15 amIAD-BRU
7h 30mnonstop
Lufthansa Logo
10:30 am - 3:50 pmBRU-IAD
11h 20m1 stop
$598Lufthansa
Find Deal
Fri, Aug 8 - Thu, Aug 14
Brussels Airlines Logo
5:35 pm - 7:25 amIAD-BRU
7h 50mnonstop
Brussels Airlines Logo
10:45 am - 1:30 pmBRU-IAD
8h 45mnonstop
$604Brussels Airlines
Find Deal
Wed, Aug 27 - Tue, Sep 2
Brussels Airlines Logo
5:35 pm - 7:25 amIAD-BRU
7h 50mnonstop
Brussels Airlines Logo
12:00 pm - 2:25 pmBRU-IAD
8h 25mnonstop
$613Brussels Airlines
Find Deal
Expert advice

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

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United Polaris offers lie-flat seats with aisle access, ideal for long-haul flights.


United's Wi-Fi varies; T-Mobile customers get free streaming on flights.

Lufthansa

Lufthansa's Premium Economy offers 50% more space and an extra checked bag up to 23kg.


Lufthansa provides 11 special meal choices, including gluten-free and halal options, pre-orderable 24 hours before departure.

Read more about Lufthansaby Jessica Macdonald
Brussels Airlines

Brussels Airlines' Premium Economy offers recliner seats, leg rests, and a 13.3” screen for entertainment.


In Business Class, enjoy a self-serve bar with snacks and beverages during your flight.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

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.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Jessica Macdonald

Jessica Macdonald

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.

Read more
Marisa Garcia

Marisa Garcia

Expert on Brussels Airlines

Marisa Garcia

Marisa Garcia

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.

Read more
Useful Info

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.

What is the cheapest Washington, D.C. Dulles Intl Airport to Brussels flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to Brussels.

Our data shows that the cheapest route for a return flight from Washington, D.C. Dulles Intl Airport to Brussels cost $570 and was between Washington, D.C. Dulles Intl Airport (IAD) and Brussels Bruxelles-National Airport (BRU). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $570.

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. Dulles Intl Airport to Brussels clicked on KAYAK for each day over the last 12 months.

When flying from Washington, D.C. to Brussels, you should consider leaving on a Wednesday and avoid Mondays if you are looking for the best rates. For your return to Washington, D.C., you’ll find the best rates on Fridays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Brussels, 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. Dulles Intl Airport to Brussels is January, where tickets cost $704 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,173 and $1,138 respectively.

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

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. Dulles Intl Airport to Brussels, 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. Dulles Intl Airport to Brussels, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Cheapest flight$211
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. Dulles Intl Airport to Brussels?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Brussels was $211 for a one-way ticket and $326 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?

    Washington, D.C. is served by only 1 airport and there are 2 airports in Brussels. You will leave Washington, D.C. from Washington, D.C. Dulles Intl and you will be arriving in Brussels at one of these airports: Brussels Bruxelles-National or Charleroi Brussels.

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

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

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

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

  • 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.

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

Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Brussels, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Brussels

Monday

Brussels Airlines, United Airlines

Brussels Airlines, United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

Brussels Airlines, United Airlines

Brussels Airlines, United Airlines

Thursday

Brussels Airlines, United Airlines

Brussels Airlines, United Airlines

Friday

Brussels Airlines, United Airlines

Brussels Airlines, United Airlines

Saturday

Brussels Airlines, United Airlines

Brussels Airlines, United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Brussels to Washington, D.C. Dulles Intl

Monday

Brussels Airlines, United Airlines

Brussels Airlines, United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

Brussels Airlines, United Airlines

Brussels Airlines, United Airlines

Thursday

Brussels Airlines, United Airlines

Brussels Airlines, United Airlines

Friday

Brussels Airlines, United Airlines

Brussels Airlines, United Airlines

Saturday

Brussels Airlines, United Airlines

Brussels Airlines, United Airlines

Sunday

United Airlines

United Airlines

See more direct flights
See more direct flights

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 8790 reviews
7.0Entertainment
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

2.0 MediocreAnonymous, Jun 2025LAX - SEA
Read more United Airlines reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

Flight was cramped with every seat taken. The food was fine, nothing crazy to write home about. The plane felt dated and needing some TLC, the button for the window shade didn't work and there were no AC outlets to use. When communicating with staff all except one nice lady never seemed happy to help me almost like I was bothering them when asked for things like a glass of water or a snack. The flight was overall fine. It did what was needed which is get me from point A to point B. But it certainly was not special. I don't expect much in economy but I believe economy on a host of other airlines is more memorable and better experience.

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

Liked nothing. As per previous segment it was delay delay delay.

I completely missed my flight because the first leg was longer than planned. I had to sleep overnight in the airport because no accommodation was provided and then sent to Trinidad in the morning with an anticipated 7 hour layover before my flight to Georgetown which was now with Caribbean Airlines. I tried twice with customer service to see if they could put me on an earlier flight which had seats available but was told it wasn’t possible.

First class felt like economy, seats were horrible, food was horrible, staff inattentive

Standard short hop flight. No food, no entertainment. Just get in, get something to drink, and try to be as comfortable as you can for an hour.

Cancelled my flight. Only option had a layover in Italy. No compensation for the 4 extra hours of travel time. The travel agency, cheapflightfares, blamed Scandinavian airlines and said there was nothing they could do. Scandinavian airlines said since it was booked through a travel agency there was nothing they could do. The entire thing was incredibly frustrating. Never booking through kayak or with Scandinavian again.

The seats were really cramped. The high backs on the chairs made you feel claustrophobic.

Maybe more diverse entertainment. Although the inflight cameras were amazing 10/10

Boarding was chaotic and the flight left late but arrived at a decent time. This may have been because of the sxsw festival that was going on.

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

The flight got canceled and you just send an email in the middle of the night and no solution to how to get on the next flight or provide other solutions.

You cost me my time and did not compensate properly. Gfy.

Missed a connecting flight and SAS was at fault. I was awarded a $20 voucher in exchange for 8 hours of my time? Gfy.

Seat was lumpier than I’ve ever remembered it to be although comfortable when tilted back. I don’t recall being that hungry after being served food from SAS before. Flight attendant on the second flight to Aalborg seemed to be having a bad day.

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

There was no room in the seats, smallest room we've ever had and the food was awful.

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

I dont fly them much anymore. Other carries offere better pricing and better seating options

This flight was of exactly the same high standard as the outbound leg, exactly a week earlier - except that we didn't have any food or drink because it departed at around midnight.

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

I liked how they looked after couples by providing a row of 4 seats if available.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset. If there is option to use another company, I suggest to other people use them.

I had an exit row and so was Comfortable on the long flight.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Flight was 1.5 hours late to depart so changed flights to Swiss Air.

The United Airlines crew that operated this flight was subpar. They didn’t

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

At baggage claim, I was given the wrong printed ticket. The ticket belonged to another passenger for a different flight — to Zurich instead of Frankfurt (layover). I was even allowed to pass security, and when I asked the Lufthansa employee if I was on the correct flight, and why it was changed. The employee said everything was correct and I should board. When I got on the plane, there was someone in my seat, and the crew on the plane finally realized that I was on the wrong plane. When I got off the plane, nobody was willing to help, and the security refused to provide my original printed ticket. That was until I showed them that I took a photo of the ticket; once they realized I had photographic evidence, they were suddenly ready to help me. The Lufthansa employee began communicating with other airlines and found a flight that would take me to my destination via Polish Airlines. I was required to once again go through security, re-check my bag, and once again pay for my checked bag and weight overage fees. This experience was incredibly stressful and very frustrating, as you can imagine. A Lufthansa employee told me I would be eligible for a refund. Please tell me what steps I need to take in order to make that happen. Thank you!

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

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

Information on your arrival and departure airports

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