$391 Find Cheap Flights from Belgium to Washington

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington
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KAYAK's insights & trends for flights to Washington

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

What is the cheapest month to fly from Belgium to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Belgium to Washington, 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 Belgium to Washington is January, when tickets cost $662 (return) on average. On the other hand, the most expensive months are October and July, when the average cost of round-trip tickets is $884 and $845 respectively.

How far in advance should I book a flight from Belgium to Washington?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, 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 Belgium to Washington, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.


Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$391
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Brussels to Portland

FAQs for booking flights from Belgium to Washington

  • How does KAYAK find such low prices on flights from Belgium to Washington?

    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 Belgium to Washington.

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

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

    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 Belgium to Washington 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 Belgium to Washington?

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

  • What is the cheapest day to fly to Washington?

    Based on KAYAK data, the cheapest day to fly to Washington is Sunday where round-trip tickets can be as cheap as $696. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $979 on average.

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

    The cheapest time of day to fly to Washington is generally in the morning, when round-trip flights cost $809 on average. The most expensive time of day to fly to Washington is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $956.

Reviews of the top 5 airlines serving from Belgium to Washington

 
See real verified KAYAK customer reviews for airlines flying to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Belgium to Washington. 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 Belgium to Washington? 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.
8.0
DeltaOverall score based on 7964 reviews
8.2Boarding
7.9Entertainment
7.3Food
7.9Comfort
8.5Crew
Airline reviews

I like for how they process during check in. It was very smoothly.

10.0 ExcellentAbdulla, Jun 2025CMH - JFK
Read more Delta reviews

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

The service was great. However the lounge only gets passing grade

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

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.

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.

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

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

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

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

Never happened. Flight was delayed. Had to be re rojyed

I was very grateful for Lufthansa's role in organizing mobility support. The touchscreen on my seat was faulty: slow, stained (I couldn't get it clean), and glitchy. This made selecting movies extremely time consuming, and twice I had to start all over from the beginning.

Beautifully maintained airplane, good food, professional crew, top-notch communication. I highly recommend Lufthansa for intercontinental flights between the United States and Europe.

Lufthansa is my favorite airline and have flown oversea with them for the past 25 years: i always found them so professional and incredibly efficient from checking in to arrival. I also love their Munich or Frankfurt airports.

The United flight was excellent! The flight attendants were attentive and nice, and the food was very good! And the glasses are larger than on Lufthansa flights! I don’t want to have to ask for 15 glasses of water because their glasses are ridiculously small!

The food not that great. Did not like the fact that we could not purchase upgrade at the airport

We paid for business class, and my seat did not work at all. Each time I wanted to adjust the position, an attendant had to come to physically force the seat into its new position. They tried to fix it by fiddling with the electronics (military reset, for example), to no avail. Also, the food was just mediocre. We were at the end of a serving section, so they ran out of several choices. (This was on the flight from Los Angeles to Munich.)

The crew was the best I’ve ever encountered. Business class was spacious, immaculate, and very modern.

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

Book cheap flights from Belgium to Washington

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Washington found on KAYAK in the last 72 hours.
10/24Fri
1 stopIcelandair
13h 00mBRU-SEA
11/1Sat
1 stopIcelandair
12h 20mSEA-BRU
$556
7/13Sun
1 stopIcelandair
30h 35mBRU-SEA
7/18Fri
1 stopIcelandair
12h 05mSEA-BRU
$592
10/20Mon
1 stopBritish Airways
33h 30mBRU-SEA
10/30Thu
1 stopBritish Airways
28h 55mSEA-BRU
$596
10/17Fri
1 stopBritish Airways
25h 00mBRU-SEA
10/27Mon
1 stopBritish Airways
33h 45mSEA-BRU
$597
9/15Mon
1 stopDelta
14h 35mBRU-SEA
10/3Fri
2 stopsDelta
24h 10mSEA-BRU
$721
9/15Mon
1 stopDelta
12h 45mBRU-SEA
10/3Fri
2 stopsDelta
24h 10mSEA-BRU
$722
7/16Wed
2 stopsUnited Airlines
35h 21mBRU-SEA
7/27Sun
1 stopUnited Airlines
15h 40mSEA-BRU
$746
7/16Wed
2 stopsUnited Airlines
35h 21mBRU-SEA
7/26Sat
1 stopUnited Airlines
23h 40mSEA-BRU
$750
6/28Sat
1 stopLufthansa
14h 25mBRU-SEA
7/19Sat
1 stopLufthansa
14h 15mSEA-BRU
$861
6/28Sat
1 stopLufthansa
12h 55mBRU-SEA
7/19Sat
1 stopLufthansa
17h 00mSEA-BRU
$862

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Washington found on KAYAK in the last 72 hours.
9/5Fri
2 stops
23h 39mBRU-PDX
$391
6/25Wed
3 stops
30h 50mCRL-SEA
$581
6/26Thu
3 stops
50h 53mCRL-SEA
$583
6/26Thu
1 stopIcelandair
15h 50mBRU-SEA
$681
7/13Sun
1 stopIcelandair
30h 35mBRU-SEA
$683
9/4Thu
2 stopsLufthansa
17h 52mBRU-PDX
$697
7/15Tue
1 stopBritish Airways
24h 10mBRU-SEA
$845
7/7Mon
1 stopLufthansa
17h 30mBRU-PDX
$856
6/25Wed
1 stopFinnair
13h 20mBRU-SEA
$885
9/3Wed
1 stopBritish Airways
29h 25mBRU-PDX
$891

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Last minute flights to Washington

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Washington that are departing in the next 10 days.
6/23Mon
multi-stopBritish Airways
30h 05mBRU-SEA
7/9Wed
multi-stopBritish Airways
21h 55mSEA-BRU
$608
6/23Mon
multi-stopBritish Airways
22h 55mBRU-SEA
7/9Wed
multi-stopBritish Airways
19h 47mSEA-BRU
$648
6/23Mon
multi-stop
16h 40mBRU-SEA
7/9Wed
multi-stop
18h 42mSEA-BRU
$689
6/23Mon
multi-stopBritish Airways
29h 20mBRU-PDX
6/29Sun
multi-stopBritish Airways
13h 35mPDX-BRU
$701
6/23Mon
multi-stopAir Canada
17h 36mBRU-SEA
7/9Wed
multi-stopAir Canada
14h 55mSEA-BRU
$855
6/23Mon
multi-stopUnited Airlines
19h 41mBRU-SEA
7/8Tue
multi-stopUnited Airlines
21h 55mSEA-BRU
$856
6/23Mon
multi-stopUnited Airlines
17h 41mBRU-SEA
7/8Tue
multi-stopUnited Airlines
23h 40mSEA-BRU
$928
6/23Mon
multi-stop
31h 26mBRU-SEA
7/9Wed
multi-stop
20h 20mSEA-BRU
$929
6/20Fri
multi-stopDelta
16h 55mBRU-SEA
6/27Fri
multi-stopDelta
24h 00mSEA-BRU
$1,025
6/20Fri
multi-stopDelta
18h 45mBRU-SEA
6/27Fri
multi-stopDelta
16h 20mSEA-BRU
$1,027

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Everything you need to know for your flight to Washington

Cabin class types available on flights to Washington

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

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