$266 Find Cheap Flights from Washington, D.C. to Belgium

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 Belgium departing on 10/3. 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

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Book Cheap Washington, D.C. to Belgium Plane Tickets

 
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 Belgium 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 Belgium

lun., sep. 1 - sáb., sep. 6
PLAY Logo
6:50 pm - 11:30 amBWI-BRU
10h 40m1 stop
PLAY Logo
12:30 pm - 5:40 pmBRU-BWI
11h 10m1 stop
$394PLAY
Find Deal
lun., sep. 1 - sáb., sep. 6
PLAY Logo
6:50 pm - 11:30 amBWI-BRU
10h 40m1 stop
PLAY Logo
12:30 pm - 5:40 pmBRU-BWI
11h 10m1 stop
$395PLAY
Find Deal
jue., nov. 13 - mar., dic. 2
Scandinavian Airlines Logo
8:30 pm - 8:55 pmIAD-BRU
18h 25m2 stops
Scandinavian Airlines Logo
11:30 am - 5:15 pmBRU-IAD
35h 45m2 stops
$428Scandinavian Airlines
Find Deal
jue., oct. 9 - mar., oct. 14
Scandinavian Airlines Logo
10:05 pm - 3:20 pmIAD-BRU
11h 15m1 stop
Scandinavian Airlines Logo
12:40 pm - 7:59 pmBRU-IAD
37h 19m2 stops
$432Scandinavian Airlines
Find Deal
dom., sep. 7 - mar., sep. 16
Aer Lingus Logo
5:20 pm - 9:40 amIAD-BRU
10h 20m1 stop
Aer Lingus Logo
10:20 am - 3:50 pmBRU-IAD
11h 30m1 stop
$470Aer Lingus
Find Deal
mar., dic. 2 - mar., dic. 9
Aer Lingus Logo
5:05 pm - 6:15 pmIAD-BRU
19h 10m1 stop
Aer Lingus Logo
10:15 am - 7:30 pmBRU-IAD
15h 15m1 stop
$481Aer Lingus
Find Deal
mié., ene. 21 - jue., ene. 29
Icelandair Logo
7:40 pm - 11:55 amBWI-BRU
10h 15m1 stop
Icelandair Logo
12:50 pm - 6:40 pmBRU-BWI
11h 50m1 stop
$566Icelandair
Find Deal
mié., dic. 3 - dom., dic. 7
Icelandair Logo
7:40 pm - 11:55 amBWI-BRU
10h 15m1 stop
Icelandair Logo
12:50 pm - 6:40 pmBRU-BWI
11h 50m1 stop
$568Icelandair
Find Deal
dom., sep. 7 - mar., sep. 16
United Airlines Logo
3:00 pm - 7:00 amDCA-BRU
10h 00m1 stop
United Airlines Logo
10:00 am - 3:51 pmBRU-DCA
11h 51m1 stop
$672United Airlines
Find Deal
lun., nov. 24 - mar., dic. 2
United Airlines Logo
4:10 pm - 7:50 amDCA-BRU
9h 40m1 stop
United Airlines Logo
10:00 am - 3:31 pmBRU-DCA
11h 31m1 stop
$711United Airlines
Find Deal
Booking Insights

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

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

What is the cheapest Washington, D.C. to Belgium flight route?

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

The cheapest ticket to Belgium from Washington, D.C. found in the last 72 hours was to Brussels, at $591 round-trip. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to Brussels Bruxelles-National Airport (BRU), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $591.

Can I save money by flying with a layover from Washington, D.C. to Belgium?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $1,026 on average.

What is the cheapest month to fly from Washington, D.C. to Belgium?

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 Belgium, 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 Belgium is January, when tickets cost $582 (return) on average. On the other hand, the most expensive months are December and May, when the average cost of round-trip tickets is $1,341 and $1,045 respectively.

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

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

When flying from Washington, D.C. to Belgium, 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.

How far in advance should I book a flight from Washington, D.C. to Belgium?

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 Belgium, 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 Belgium, you should book around 3 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$266
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 62% increase in price.
Flight from Washington Dulles Airport to Brussels Airport

FAQs - booking Belgium flights

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

    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 Belgium.

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

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

    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 from Washington, D.C. to Belgium 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 from Washington, D.C. to Belgium?

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

  • What is the cheapest time of day to fly to Belgium?

    The cheapest time of day to fly to Belgium is generally at night, when round-trip flights cost $714 on average. Morning departures are around 20% more expensive than evening flights, on average. The most expensive time of day to fly to Belgium is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,396.

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

 
Need help choosing which airline to fly with from Washington, D.C. to Belgium? 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 1468 reviews
7.6Boarding
7.3Comfort
6.6Entertainment
6.6Food
8.0Crew
Airline reviews

Will not recommend SAS for business travel. Food was so-so. Service was very good. First leg was very good. Second leg from Copenhagen to Barcelona was terrible. We paid a LOT for business class and to have seats worse than most coach seats with no entertainment and no charging available for 1/3rd of the whole trip was not acceptable. Very disappointing. I thought they were coming back in the U.S. with style, NOT YET.

6.0 GoodArt, Aug 2025SEA - CPH
Read more Scandinavian Airlines reviews

Will not recommend SAS for business travel. Food was so-so. Service was very good. First leg was very good. Second leg from Copenhagen to Barcelona was terrible. We paid a LOT for business class and to have seats worse than most coach seats with no entertainment and no charging available for 1/3rd of the whole trip was not acceptable. Very disappointing. I thought they were coming back in the U.S. with style, NOT YET.

I do not have a problem with the airline but both my two suitcases that were supposed to go from Hawaii to Copenhagen didn’t get on the plane in Seattle. I arrive on Monday the 21st at 10:30 in the morning. I did not get my two suitcases before Friday late afternoon that is unacceptable.

Love thiscsirlibe. So civilized and kind. Good food. Good treatment. On time. Excellent communication.

No choice of food. Needed to pay more even for a can of coke!!!

The seats were really close together and hard to get comfortable. The food was okay. The cheese was amazing! I loved the cold towels they gave us.

When my flight was changed from delays they were quick to rebook me.

I really enjoyed how clean and big the aircraft was, as well as how friendly the crew was.

Airline left me stranded in the U.S. gave me an unrequested refund of 40% of booking and canceled my trip back! When I asked why, the said “we don’t have to tell you why”. “But you can rebook”. Never again! Paid 2x and rebooked on Austrian. What a joke!

Painful seats for a 10 hour flight. There’s a very hard flat board in the seat that goes up to half the back and after 7 hours it gets impossible to find the right position to avoid the pain.

I paid for the seat with more leg room but on the day of my departure my seat was changed. I brought it to the airline costumer service and he was able to change it back. The person sitting next to me had the same exact issue.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

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.

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

Actually this is my first time using airline I was in every single thing that happened throughout our journey, the appearance of the plane inside furnished about the seating the flight attendants and many many more I was so excited throughout thank you Brussels Airlines for the great service.

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

It was really good because the employees were very nice and fun to talk to. The entertainment was nice because they had plenty of movies to watch.

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 ?

The space between seats was reduced even further. Could not even open the tray table fully and got compressed the moment the front guy reclined. For a long haul flight it was extremely uncomfortable.

My experience with Aer Lingus was nice, and I would be happy to fly with them again. However, my seat pocket had not been cleaned and had dirty wipes in it. I have flown with Aer Lingus before and do not recall anything like that happening, so presumably this was a one-off kind of thing. For the meal, I asked if there was possibly one without my allergens and the flight attendant gave me the one she thought would be fine. She did not know what allergens were in it, but when I received the meal the allergens were all listed right on the top of the package, so I was confused about why she didn’t know how to check what they were. In future, I will see if it’s possible to request an allergen-free meal ahead of time. But overall, I had a pleasant experience. My experience with Underpricer was very unenjoyable and because of them I do not plan to book through Kayak in the future. I have used Kayak numerous times, but this booking experience was so unpleasant. They called me numerous times and also emailed me to try to get me to select a seat. However, when I had a question later on, I was kept on hold for 20/30 minutes before I finally hung up. I also emailed them but never received a response, which I did not appreciate, especially given their previous frequent calls when they wanted something from me.

We booked a flight from FCO(Rome) with a stop over at DUB(Dublin) going to JFK. Boarding from Rome was kind of chaotic since the airport I guess is very small and we needed to shuttle to the airplane. The gate agent just let everyone and anyone go without using the sections so that took a lot longer than usual boarding. From drinking to JFk boarding was good and organized. Amazingly the flights was very smooth sailing and we’ve flown American big airplane to small companies before. The aircraft’s itself is on the older side, can’t complain tho because the plane ride wa smooth. For a 3 hour plane ride, nothing was complimentary. But for the longer leg of the plane complimentary snacks, meals and drinks were provided which was great. The food wasn’t bad either. I would fly with them again, great price and good service.

I appteciate the very courteous staff. The flight was good. Something that wasn't good was that my bag was only checked as far as Dublin and I had a connecting flight to Vienna. (That was a mistake the ORD desk made.) Fortunately the desk at DUB was able to re-tag without me having to re-check in (which initially it seemed I might have to do.)

Charging for coffee on a business class fare??? And to not even mention it? Inexcusable. Boarding and disembarking was pathetic. Could not use a jetway on either end. Had to use stairs and walk across tarmac at origination and use stairs and be bussed to terminal at destination.

I had a great experience. I wasn’t sure what to expect but the crew helped me check my bags and made sure I got in the correct line to board. It was a bit of a walk to my gate so arrive early. I would recommend securing a flight that includes checking in your bag if you remotely think your baggage is over 10kg/22lbs. Be safe and upgrade unless you are carrying a backpack or weekend type baggage.

It was excellent! The plane left Chicago early. Arrived in Dublin early. The crew was excellent! It was a great experience.

The food was mediocre, the coffee was terrible. The entertaining selection was plentiful. They lost my checked luggage which put a damper on my 10-day vacation.

Weeeeeeell, you folks know economy class on Airbuses well--you're packed in like sardines. We may actually spring for more expensive seats next time, with a little room to stretch out. NO room to stretch out in Airbus economy class! :-) Apart from this, the food was decent (considering that it's mass-produced, and has severe spatial restrictions of its own), the staff were friendly enough, and there was a wide selection of movies, etc. to watch. Overall, I'd tend to use the word "adequate" rather than "exceptional" for my experience. But really, how could it be otherwise?

The check in process at CDG was absolutely unacceptable. We arrived to the airport 3 hours and 20 minutes before our departure time, waited in line for 1 hour and 30 minutes to check in (despite having checked in online and only needing to check a bag), then were forced to check all of our rolling luggage despite the fact that all were compliant with carry-on requirements. The staff at the desk were rude and there were only two desks open, while eight people were working. The check in desk wasn’t even opened on time (3 hours prior to departure) and there was no communication about when it would open or why there was a delay. We feared missing our flight because the departure board was not updated, so rushed to our gate to board once we were through security because it was 20 minutes prior to departure, only to wait another 30 minutes before boarding even started. Communication was lacking throughout the process. What a horrible end to our trip.

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.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

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

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

Cabin class types available on flights to Belgium

Cabin classes available on flights to Belgium. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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