$240 Find Cheap Flights from Boston 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 Boston to Brussels departing on 3/23. 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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Brussels.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Brussels.
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Everything you should know

Cheapest round-trip
$397
Overall average: $525
TAP AIR PORTUGAL
Sat 1/31Sat 2/7
BOS - BRU • 1 stop
Cheapest one-way
$241
Typical prices: $401-$592
Aer Lingus
Mon 3/23
BOS - BRU • 1 stop
Top airlines
Brussels Airlines
Cheapest • from $399 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
BOS-BRU
Cheapest
BOS-BRU
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
Nonstop flights
3 days a week
There are direct flights from Boston to Brussels 3 days a week: Wed, Fri, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
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We hope you love your trip to Brussels!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Brussels (BOS-BRU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston 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 Boston to Brussels

Sat, Jan 31 - Sat, Feb 7
TAP AIR PORTUGAL Logo
10:25 pm - 5:05 pm
BOS
-
BRU
12h 40m1 stop
TAP AIR PORTUGAL Logo
11:50 am - 8:10 pm
BRU
-
BOS
14h 20m1 stop
$397TAP AIR PORTUGAL
Mon, Jan 12 - Tue, Jan 27
Brussels Airlines Logo
3:40 pm - 8:25 am
BOS
-
BRU
34h 45m2 stops
Brussels Airlines Logo
9:45 am - 7:42 pm
BRU
-
BOS
15h 57m2 stops
$399Brussels Airlines
Mon, Jan 12 - Sun, Jan 18
Brussels Airlines Logo
3:40 pm - 8:25 am
BOS
-
BRU
34h 45m2 stops
Brussels Airlines Logo
10:00 am - 2:52 pm
BRU
-
BOS
10h 52m1 stop
$400Brussels Airlines
Fri, Jan 30 - Fri, Feb 13
Brussels Airlines Logo
3:40 pm - 7:50 am
BOS
-
BRU
10h 10m1 stop
Brussels Airlines Logo
10:00 am - 2:52 pm
BRU
-
BOS
10h 52m1 stop
$401Brussels Airlines
Sun, Mar 15 - Tue, Apr 14
Delta Logo
8:30 am - 8:00 am
BOS
-
BRU
18h 30m1 stop
Delta Logo
9:45 am - 5:39 pm
BRU
-
BOS
13h 54m1 stop
$403Delta
Sun, Mar 15 - Thu, Apr 16
United Airlines Logo
9:30 am - 7:15 am
BOS
-
BRU
16h 45m1 stop
United Airlines Logo
12:00 pm - 7:06 pm
BRU
-
BOS
13h 06m1 stop
$404United Airlines
Tue, Mar 17 - Wed, Apr 15
United Airlines Logo
3:35 pm - 7:50 am
BOS
-
BRU
11h 15m1 stop
United Airlines Logo
9:25 am - 5:57 pm
BRU
-
BOS
14h 32m1 stop
$405United Airlines
Tue, Mar 17 - Fri, Apr 17
United Airlines Logo
3:35 pm - 7:50 am
BOS
-
BRU
11h 15m1 stop
United Airlines Logo
12:00 pm - 12:14 am
BRU
-
BOS
18h 14m1 stop
$407United Airlines
Mon, Feb 2 - Sat, Feb 7
Multiple Airlines Logo
10:40 pm - 9:00 pm
BOS
-
CRL
16h 20m1 stop
Multiple Airlines Logo
1:15 pm - 8:55 pm
CRL
-
BOS
13h 40m1 stop
$476Multiple Airlines
Mon, Feb 2 - Thu, Feb 5
Multiple Airlines Logo
10:40 pm - 9:00 pm
BOS
-
CRL
16h 20m1 stop
Multiple Airlines Logo
8:40 am - 8:55 pm
CRL
-
BOS
18h 15m1 stop
$477Multiple Airlines
Booking Insights

KAYAK's insights & trends for Boston to Brussels flights

Get data-powered insights and trends into flights from Boston to Brussels to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Boston to Brussels flight route?

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

The cheapest return flight from Boston to Brussels costs $826 on the route between Boston (BOS) and Brussels Bruxelles-National Airport (BRU). It is also the most popular route.

What’s the cheapest day of the week to fly from Boston to Brussels?

The average price of all round-trip flights from Boston to Brussels clicked on KAYAK for each day over the last 12 months.

When flying from Boston to Brussels, you should consider leaving on a Tuesday and avoid Fridays if you are looking for the best rates. For your return to Boston, you’ll find the best rates on Wednesdays and the most expensive ones on Saturdays.

What is the cheapest month to fly from Boston to Brussels?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston 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 Boston to Brussels is November, where tickets cost $457 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $784 and $688 respectively.

How far in advance should I book a flight from Boston 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 Boston 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 Boston to Brussels, you should book around 3 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Cheapest flight$241
Flight from Boston to Brussels Airport

When to book flights from Boston to Brussels

Are your dates flexible? Find out the best times to travel from Boston 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 flights from Boston to Brussels

  • What is the cheapest flight from Boston to Brussels?

    In the last 3 days, the lowest price for a flight from Boston to Brussels was $241 for a one-way ticket and $397 for a round-trip.

  • Do I need a passport to fly between Boston and Brussels?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Brussels.

  • Which aircraft models fly most regularly from Boston to Brussels?

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

  • Which airline alliances offer flights from Boston to Brussels?

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

  • What is the most popular layover when flying to Brussels from Boston?

    Reykjavik is the most popular layover city among KAYAK users traveling from Boston to Brussels.

  • How does KAYAK find such low prices on flights from Boston 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 Boston to Brussels.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels from Boston 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 Boston 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 Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston 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 Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Boston to Brussels?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Boston Logan Intl to Brussels.
Find which airlines fly direct from Boston Logan Intl Airport to Brussels, which days they fly and book direct flights.

Direct departures

Boston Logan Intl to Brussels

Wednesday

Hainan Airlines

Hainan Airlines

Friday

Hainan Airlines

Hainan Airlines

Sunday

Hainan Airlines

Hainan Airlines

See more direct flights

Direct returns

Brussels to Boston Logan Intl

See more direct flights

Reviews of the top 5 airlines serving from Boston to Brussels

 
See real verified KAYAK customer reviews for airlines flying from Boston 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 Boston 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 9105 reviews
6.6Food
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
Airline reviews

They did the one thing that really matters - got to Chicago early.

10.0 ExcellentRob, Dec 2025
RIC - ORD
Read more United Airlines reviews

They did the one thing that really matters - got to Chicago early.

I liked the snacks and the flight attendants were friendly.

Gate agent at Frankfurt was terrible. She denied PRE boarding even as it was printed on the boarding pass. Refused to look at the boarding pass and literally shouting for no reason. Frankfurt airport has horrible and rude staff who avoids trying to answer any question at all. Overall, horrible experience.

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.

Very turbulent trip made it pretty bearable, plus the lack of refreshments served and the lack of any air conditioning before takeoff which took an hour or more.

Flight was late - I was downgraded from first class to coach

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

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.

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”.

This is a bit of a rant, but I'll try to keep it civil. The flight was delayed for 2 hours with almost ZERO updates from agents. Just "there's technical issues, we don't know if or when it'll be resolved" once an hour maybe? And the gate signs, and app never updated to show the delay until it was finally resolved. So when I called Aer Lingus to see if I could rebook, I had literally the dumbest conversation with the person on the phone there where he says "It's showing your flight departed at 11:10. So it's already departed!", where I responded, "Well, it's 12:45 and I'm on the phone with you, standing in the airport, staring at the plane. So...I'm not sure what your system is saying, but we aren't in the air right now.". He said "Nothing I can do. Since it doesn't show delayed in my system, you would be charged to reschedule." Once we finally departed 2 hours late, things were going smoothly as I would expect, except in another very strange way. The stewardesses were rolling the cart down the aisle offering drinks and I asked for a water, to which they said "Sure, you can buy a bottle". I'm not sure if this is an Aer Lingus thing. Maybe something I'd expect from Ryan Air, but for a 3 hour international flight, to not have complimentary water available for customers is an absolute first, in 15 years of flying for me. I'm not upset with the plane staff at all. They were very friendly, but Aer Lingus' policies, how they handled the delay, and the unbelievable conversation with the customer service representative, leaves a lot to be desired in those areas. Also, I'm not upset about the delay. Things happen. Technical issues. But this is a place where airlines really need to clearly communicate with their customers. They also changed gates from 12N to 13N and there was no notification on any app, or announcement over the PA. End of rant. I hope they get some feedback on how to improve communication, because otherwise, they were great. And the second leg of my trip was incredibly smooth - no nickle and diming water, no communication issues. Very professional and efficient and even landed early

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.

Seats are small, but comfortable and more space around you, so for a normal person the seats are perfect. If you are a big and fat individual, I would not think the seats are comfortable. All else was good and normal. Lots of movies to watch.

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.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.

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

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

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

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

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

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

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Plane was extremely delayed, but not all of it was BA fault (some was). Worst part was lack of room - this had as much space as an Allegiant flight. I thought transatlantic usually gave you an extra inch or two, but not this one. Entertainment system sporadically worked and didn’t have great options. Overhead bins are old and tiny, not as good as aunties new planes.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

The cramped seats are cruel and unusual punishment and may violate the Geneva code.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

I was attacked in the Miami airport and the staff did nothing. On my flight from London to Miami one of the flight attendants screamed at me and demanded I keep my seat in the upright position at all times during the fight so the man behind me was comfortable for the flight. I will never in my life use British airways again

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

Everything you need to know for your flight from Boston to Brussels

Information on your arrival and departure airports