$368 Find Cheap Flights from Belgium to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Washington, D.C. departing on 1/20. 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 Washington, D.C.

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

Cheapest round-trip
$517
Typical prices: $570-$791
TAP AIR PORTUGAL
Wed 12/10Fri 1/30
BRU - IAD • 1 stop
Cheapest non-stop
$614
Typical prices: $596-$854
Brussels Airlines
Thu 11/20Thu 12/4
BRU - IAD • Non-stop
When to travel
September
Cheapest • 10% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Belgium to Washington, D.C.

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

Wed, Dec 10 - Fri, Jan 30
TAP AIR PORTUGAL Logo
11:50 am - 9:00 pmBRU-IAD
15h 10m1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 5:05 pmIAD-BRU
12h 35m1 stop
$517TAP AIR PORTUGAL
Find Deal
Thu, Mar 12 - Mon, Mar 16
Scandinavian Airlines Logo
10:20 am - 6:15 pmBRU-IAD
12h 55m1 stop
Scandinavian Airlines Logo
9:30 pm - 9:40 amIAD-BRU
31h 10m1 stop
$522Scandinavian Airlines
Find Deal
Thu, Dec 11 - Wed, Dec 17
Aer Lingus Logo
10:15 am - 3:35 pmBRU-IAD
11h 20m1 stop
Aer Lingus Logo
9:00 pm - 6:15 pmIAD-BRU
15h 15m1 stop
$537Aer Lingus
Find Deal
Mon, Jan 19 - Tue, Jan 20
Aer Lingus Logo
10:15 am - 3:35 pmBRU-IAD
11h 20m1 stop
Aer Lingus Logo
5:05 pm - 6:15 pmIAD-BRU
19h 10m1 stop
$551Aer Lingus
Find Deal
Sat, Nov 15 - Sun, Nov 16
United Airlines Logo
11:15 am - 7:13 amBRU-IAD
25h 58m2 stops
United Airlines Logo
5:33 pm - 1:15 pmIAD-BRU
13h 42m2 stops
$588United Airlines
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Fri, Nov 14 - Thu, Nov 27
Lufthansa Logo
10:30 am - 3:50 pmBRU-IAD
11h 20m1 stop
Lufthansa Logo
5:45 pm - 7:15 amIAD-BRU
7h 30mnonstop
$593Lufthansa
Find Deal
Fri, Nov 14 - Thu, Nov 27
Lufthansa Logo
11:55 am - 2:35 pmBRU-IAD
8h 40mnonstop
Lufthansa Logo
5:45 pm - 7:15 amIAD-BRU
7h 30mnonstop
$596Lufthansa
Find Deal
Sat, Nov 15 - Tue, Mar 3
United Airlines Logo
10:30 am - 9:59 amBRU-BWI
29h 29m2 stops
United Airlines Logo
10:30 am - 1:15 pmBWI-BRU
20h 45m2 stops
$631United Airlines
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Sat, Nov 15 - Sun, Nov 16
KLM Logo
11:00 am - 6:00 pmBRU-DCA
13h 00m1 stop
KLM Logo
12:39 pm - 7:35 amDCA-BRU
12h 56m2 stops
$645KLM
Find Deal
Fri, Nov 14 - Thu, Nov 27
KLM Logo
2:45 pm - 10:56 pmBRU-DCA
14h 11m2 stops
KLM Logo
12:40 pm - 7:35 amDCA-BRU
12h 55m2 stops
$669KLM
Find Deal
Booking Insights

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Washington, D.C., 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 to Washington, D.C. is September, where tickets cost $539 on average for one-way flights. On the other hand, the most expensive months are December and July, where the average cost of tickets from Belgium is $684 and $628 respectively. For return trips, the best month to travel is September with an average price of $539.

What is a good deal for flights to Washington, D.C.?

If you’re looking for cheap airfare to Washington, D.C., 25% of our users found tickets to Washington, D.C. for the following prices or less: From Brussels Bruxelles-National Airport $796 one-way - $785 round-trip.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, D.C., 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, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 51 days before departure.

Which is the cheapest airport to fly into in Washington, D.C.?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Washington, D.C. is Baltimore/Washington Airport, with an average flight price of $202.

Good to know

Low seasonSeptember
Cheapest flight$364
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Brussels Airport to Washington Dulles Airport

FAQs - booking Washington, D.C. flights

  • Which Washington, D.C. airport is closest to central Washington, D.C.?

    4 miles away from Washington, D.C.’s city center, Reagan Washington National Airport is the closest of the 2 major airports in the city. There are 22 miles separating Washington, D.C. city center to Washington Dulles Airport.

  • How much is a flight to Washington, D.C.?

    On average, a flight to Washington, D.C. costs $885. The cheapest price found on KAYAK in the last 2 weeks cost $638 and departed from Brussels Bruxelles-National Airport.

  • What is the cheapest day to fly to Washington, D.C.?

    Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Friday where tickets can be as cheap as $701. On the other hand, the most expensive day to fly is Monday, where prices are $786 on average.

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

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Washington, D.C..

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back with another airline.

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

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. 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 Washington, D.C.?

    The cheapest time of day to fly to Washington, D.C. is generally in the afternoon, when flights cost $596 on average. The most expensive time of day to fly to Washington, D.C. is generally in the morning, which is peak travel time and where the average cost of a ticket is $726.

Top tips for finding cheap flights to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $796 or less one-way and $785 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington, D.C. flight deals.

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

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Belgium to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Washington, D.C.? 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.
7.7
KLMOverall score based on 1404 reviews
7.7Comfort
7.3Food
7.1Entertainment
7.8Boarding
8.4Crew
Airline reviews

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

2.0 MediocreAbisola, Oct 2025CDG - AMS
Read more KLM reviews

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

Crew was dismissive. Snacks and refills not offered. Poor business class experience. Bed not comfortable compared to Emirates or BA.

Flight was delayed for 5 hours because crew didn’t have enough time to rest - this seems like it could have been avoided with better scheduling. Food was not good.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

This is the best united airlines flight that I took. The crew was very friendly and the food was tasty!

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

Food was just okay. Was surprised initially when was charged for a cup of tea when they first came through cabin for beverages. I’ve had far better long distance flights ( take some tips from Swiss airlines)

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

The seats needs to be comfortables, at least please add more padding to the seats.

Incredible service. Incredible entertainment. I felt like they just kept serving us something new avery hour. My wife and I both had a joyous flight.

I liked that I went thru customs in Dublin instead of having to do that in LA.

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

Crew was friendly and helpful, plane was comfortable would fly with them again

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

Wheelchair assistance didn't turn up on time. We had to walk to baggage reclaim and to taxi.

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

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

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was poor quality and the screens for entertainment didn’t work properly

Food was much better than my outbound flight. On-time. Good service. I had a problem with my entertainment screen, but the attendant fixed it promptly.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

United lost my travel information and canceled my original flight. I had a seat assignment but was refused the booking. I had to prove that I went to Germany on United Very concerned about security that no one recorded my passport from Cleveland to NY and NY to Frankfurt I arrived at home at 12:30am on Saturday instead of 8pm I expect a full refund from United Please provide information to assure compensation

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Linthicum Heights
Hanover
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Gaithersburg
Towson
Owings Mills
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Glen Burnie
Ellicott City
Greenbelt
Colonial Beach
Edgewood
Pikesville
Lutherville Timonium
Hunt Valley
Stevensville
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Westminster

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

Cabin class types available on flights to Washington, D.C.

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

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