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SEA - BRU

$334 Find cheap flights from Seattle to Brussels Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Brussels departing on 5/27. 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
0 bags
qua 5/29
qua 6/5

Search hundreds of travel sites at once for deals on flights to Brussels Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Brussels.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Brussels.
In the last 7 days travelers have searched 43,983,279 times on KAYAK, and here is why:

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from Seattle to Brussels (SEA-BRU)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle 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 and deals for you by selecting your travel dates.
Choose your dates
10:49 am - 9:00 amSEA-BRU
13h 11m1 stop
2:40 pm - 6:45 pmBRU-SEA
37h 05m2 stops
$699United Airlines
Find Deal
sex, mai 3 - sáb, mai 4
11:10 pm - 7:45 amSEA-BRU
23h 35m1 stop
9:30 am - 9:58 pmBRU-SEA
21h 28m1 stop
$836Brussels Airlines
Find Deal
seg, jun 17 - sex, ago 30
7:10 am - 8:45 amSEA-BRU
16h 35m1 stop
3:05 pm - 10:15 amBRU-SEA
28h 10m1 stop
$866Delta
Find Deal
ter, jun 18 - seg, ago 19
1:30 pm - 8:15 pmSEA-BRU
21h 45m1 stop
11:05 am - 12:55 amBRU-SEA
22h 50m2 stops
$887British Airways
Find Deal
ter, jul 23 - ter, ago 6
1:25 pm - 8:15 pmSEA-BRU
21h 50m2 stops
8:00 pm - 6:52 pmBRU-SEA
31h 52m2 stops
$892British Airways
Find Deal
ter, jun 18 - seg, ago 19
7:10 am - 9:40 amSEA-BRU
17h 30m2 stops
3:05 pm - 10:15 amBRU-SEA
28h 10m1 stop
$896Delta
Find Deal
ter, jun 18 - seg, ago 19
1:10 pm - 7:25 pmSEA-BRU
21h 15m2 stops
8:05 pm - 10:20 pmBRU-SEA
35h 15m2 stops
$921Lufthansa
Find Deal
dom, jul 14 - seg, jul 29
10:40 am - 7:25 pmSEA-BRU
23h 45m2 stops
7:00 am - 6:26 pmBRU-SEA
20h 26m2 stops
$940Lufthansa
Find Deal
qui, jul 11 - ter, jul 30
3:50 pm - 12:50 pmSEA-BRU
12h 00m1 stop
1:50 pm - 11:20 amBRU-SEA
30h 30m1 stop
$1,001Icelandair
Find Deal
ter, jun 11 - ter, jun 18
3:50 pm - 12:50 pmSEA-BRU
12h 00m1 stop
1:50 pm - 8:35 pmBRU-SEA
15h 45m1 stop
$1,038Icelandair
Find Deal
sex, mai 17 - ter, mai 28

Flights from Seattle to Brussels - Travel Insights & Trends

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

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

The average price of all flights from Seattle to Brussels Bruxelles-National Airport clicked on KAYAK for each day over the last 12 months.
When flying from Seattle to Brussels Airport, you should consider leaving on a Sunday and avoid Thursdays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

What is the cheapest month to fly from Seattle to Brussels Bruxelles-National Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Brussels Bruxelles-National Airport, 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 Seattle to Brussels Bruxelles-National Airport is November, where tickets cost $684 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,606 and $1,247 respectively.

How far in advance should I book a flight from Seattle to Brussels Bruxelles-National Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Brussels Bruxelles-National Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Brussels Bruxelles-National Airport, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 82 days before departure.

Which airlines provide the cheapest flights from Seattle to Brussels Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Air Canada ($539) and Delta ($544). The cheapest round-trip tickets were found on United Airlines ($699) and Brussels Airlines ($836).

Good to know

Low season

January

High season

July

Cheapest flight

$334
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Seattle to Brussels Airport

When to book flights from Seattle to Brussels

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

  • Traveling with your child can be convenient if you consider flying with Condor from SEA to BRU. They offer family-friendly services, including special family check-in counters, pre-boarding for those with young children, changing facilities, and in-flight entertainment with child-friendly content.

    What are the transport options from Brussels Airport to downtown?

  • You can connect from BRU Airport to Brussels North in downtown Brussels using the Ic train of Belgian Railways servicing NMBS and SNCB Lines with an interval of 10 minutes. STIB bus links BRU Airport with Schuman in downtown Brussels and operates at a 20-mins interval. De Lijn bus connects BRU Airport to downtown Brussels and operates after every 30 minutes. FlixBus bus runs six times weekly and connects BRU Airport to downtown Brussels.

    What are some layover airports for flights from Seattle to Brussels?

  • All flights have layovers on the SEA to BRU route. Some of the stopover airports include Frankfurt (FR) by Condor and Lufthansa, Keflavik (KEF) by Iceland, Dublin (DUB) by Aer Lingus, and London (LHR) by Finnair, Iberia, American, and British.

    Which lounges can I access at Seattle Airport?

  • SEA Airport has lounges where you can relax while waiting for your BRU flight. Some of the lounges offer exclusive access to their Business- and First-class passengers free of charge. They include Centurion Lounge on Concourse B at the Airside, Delta Sky Club Lounge on Concourse A at the Airside, and Alaska Lounge with three locations on Concourse D, Concourse C, and North Satellite at the Airside.

    What is the carry-on policy for flights from Seattle to Brussels?

  • What is the cheapest flight from Seattle to Brussels Bruxelles-National Airport?

    In the last 3 days, the lowest price for a flight from Seattle to Brussels Bruxelles-National Airport was $334 for a one-way ticket and $699 for a round-trip.

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

    Yes, you’ll need a passport to travel to Brussels Airport from Seattle.

  • Which aircraft models fly most regularly from Seattle to Brussels Airport?

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

  • Which airline alliances offer flights from Seattle to Brussels Airport?

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

  • Which is the best airline for flights from Seattle to Brussels, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Brussels are Delta and United Airlines. With an average price for the route of $945 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $640 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Seattle to Brussels Airport?

    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 Seattle to Brussels Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels Airport from Seattle 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 Seattle to Brussels Airport?

    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 Airport with an airline and back to Seattle with another airline. Booking your flights between Seattle and BRU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Brussels Airport?

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

See more FAQs

Top tips for finding a cheap flight from SEA to Brussels Airport

  • Yes. Airlines flying from Miami to Vilnius assist passengers with special needs. Each airline operating on this route runs a wheelchair assistance program to help passengers with limited mobility get through the airport. Airlines like United Airlines, Lufthansa, and Turkish Airlines offer airport attendants who assist travelers with reduced mobility with their luggage from check-in areas to baggage claim on arrival.
  • Consider flying with Tap Air Portugal from Seattle–Tacoma Airport - Seatac (SEA) to Brussels Airport - Zaventem (BRU) to enjoy personalized meals that match your dietary needs. They include age-appropriate meals for children, Gluten-free meals for their gluten-intolerant passengers, and vegan, diabetic, and vegetarian meals specified for these passengers.
  • Condor and Tap Air Portugal allow minors aged 5 to 11 to travel unaccompanied from SEA to BRU. Their travel is only restricted to domestic flights. Both airlines have ground personnel who can help them through check-in. An assigned in-flight crew supervises the unaccompanied minors throughout their flight for enhanced safety and comfort.
  • SWISS offers extensive accessible services to special needs passengers traveling from SEA to BRU. The airline offer wheelchair assistance to passengers with reduced mobility. Their low-vision and hard-to-hear passengers have access to other forms of communication, such as braille, audio descriptions, and written or visual announcements.
  • Since the journey from SEA to BRU is long, consider flying Business- or First-class with Scandinavian Airlines for enhanced comfort. They offer these passengers special services and amenities, including fine dining options, spacious seats, and increased allowed size of carry-on bags.
See more tips

Top 5 airlines serving from Seattle to Brussels

 
See real verified KAYAK customer reviews for airlines flying from Seattle 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 Seattle 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.
7.5
Air FranceOverall score based on 1798 reviews
7.5Boarding
7.4Comfort
7.1Entertainment
8.2Crew
7.2Food
Airline reviews

Excellent apart from transport to actual plane 10 minutes from the actual gate , walking out in the tarmac in the rain and having to climb stairs to enter while holding luggage.

8.0 Excellentbill, Mar 2024CDG - YOW
Read more about Air France reviews

Excellent apart from transport to actual plane 10 minutes from the actual gate , walking out in the tarmac in the rain and having to climb stairs to enter while holding luggage.

They wanted to close counter although they did not provide the wheelchair requested which ended by going alone to transit security and lost long time and they did not want to wait .

Good aorcraft 777 but Worst food ever Breakfast was a bû’with matonnaise… Staff was nice but invisible most of the flight

Business class in the second leg - CDG-EVN was a disaster.

Everything went smoothly with Air France. There was a delay in departure which seemed to relate to the immigration services being short staffed.

worst experience ever i choose my seat in advance and also have my seat selected in my boarding and the they told me that my seat has been changed without notify me

I have used Air France and KLM many times it will help if they change their menu's feel like it's been the same for years!!!, Especially the breakfast. Overall the flight was good and enjoyable.

No birding was given for next trip on same carrier, food was very moderate.

We transited through Chad and what was supposed to be a 1hr 20 minutes transit time lasted over 4hrs. We didn't get regular updates until we complained. After a 10hr flight from Paris no form of refreshment given and finally arrived Abuja over 6hrs later and none of my bags came

The line at boarding was not well organized and managed

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

The ride was good but no food ot entertainment hence, it was just over an hour flight.

There was a group of school age passengers that were very loud and unruly with their chaperones were no where to be found.

Boarding was unorganized. They expected passengers to ask people to move their assigned seat they paid for in order to sit together. The seats even in comfort are smaller than other airlines and the flight attendants appeared not to be well prepared

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Nothing beats ANA customer service on my opinion. Maybe because of their Japanese culture (and food). Arigatō

So so. Terrible aircraft choice for that leg of the flight.

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

Pros: "I liked the northern lights look after boarding upon introduction of the captain and crew members. Everyone was super personal and uninformed looked great. The best part was when they started boarding from the last row, which is the most logical and efficient way to do it"

Check-in very easy and smooth. Plane and crew were nice. Seat open next to me created more space. Food was fair but plentiful. Lots of movies and I was able to sleep some on the way to Munich. Very tight connection, about an hour. Fast through passport control and a bit of a walk to last G terminal gate but I made my connection to Palma. Unfortunately, my luggage did not make it. It is now almost 24 hours since I anded and still NO luggage. I know it landed last night on another flight. Local delivery should be today to my hotel in Palma but nothing yet. I asked about the tight connection when I checked in and was assured they would get my luggage to the connecting flight. Very disappointing it missed my flight but more disappointing that it has taken so long to arrive. Failure on the airlines and service to get my luggage to date.

I wish the flight attendant was a little bit kinder

The food wasn’t great and it would be nice if the airlines showed documentaries about the countries we are flying into.

Disappointed everytime. The app doesn't load the boarding passes. They have lots of agent that seem to be busy doing nothing with a long line waiting to get paper boarding passes. Food choices are poor. Entertainment is less than entertaining.

Horrible experience. Nothing to give to kids to keep them entertained.

I think I have bruises on my kneecaps. Do the seats have to be so close together these days? And if they are so close they really shouldn’t recline. I think when the gentleman in front of me reclined, the back of his head was on my chin. That being said the crew were always caring and polite, and the flight was on time and very safe. So I’m grateful for that.

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

I dropped my wallet under my seat on this flight with all of my money and credit card. I requested to be able to go back and retrieve it but Lufthansa denied my request. I went to the Customer Services and they called Lost and Found but I was told nothing found would be turned in until around 12:00pm. My next flight was leaving so I was unable to check to see if my wallet was turned in. I will never fly with Lufthansa again.

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

Not connecting flights. Missed my flight from Dublin to Liverpool because I arrived at Dublin one hour too late. For this mistake, they offered me a flight from Dublin to Manchester. Thats great and all, but I waste time and money to commute to Liverpool. Be sure to check the time of your connecting flights, because they sure don’t when they sell it to you

Excellent! Great flight attendants, good food (in business class, at least), very comfortable. Touchscreen and remote wasn’t great.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Overall, terrific service, accommodations, and experience. Only reason comfort was rated lower was because it was difficult to keep a comfortable sleeping position for the overnight flight, but I also had an economy seat.

Not sure if the crew were experiencing something unknown to me,but the service of passing water was non-existent.In addition,please take consideration when providing yogurt as alternative for breakfast as some of us, could be lactose intolerant.. thanks

Book cheap flights from Seattle to Brussels

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Brussels found on KAYAK in the last 72 hours.
5/27seg
3 stops
39h 35mSEA-BRU
$334
7/17qua
2 stops
49h 40mSEA-BRU
$356
7/14dom
2 stops
29h 45mSEA-BRU
$365
7/23ter
2 stops
16h 45mSEA-BRU
$370
7/14dom
1 stopAir Canada
13h 40mSEA-BRU
$539
7/13sáb
1 stopDelta
24h 45mSEA-BRU
$544
7/16ter
2 stopsAir Canada
16h 55mSEA-BRU
$545
7/12sex
2 stopsDelta
23h 05mSEA-BRU
$594
7/10qua
1 stopUnited Airlines
23h 30mSEA-BRU
$628
5/26dom
2 stopsAmerican Airlines
32h 45mSEA-BRU
$926

Search by stops

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Last minute flights from Seattle to Brussels

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 from Seattle to Brussels that are departing in the next 10 days.
5/3sex
multi-stopUnited Airlines
13h 11mSEA-BRU
5/4sáb
multi-stopUnited Airlines
37h 05mBRU-SEA
$699
5/1qua
multi-stop
19h 50mSEA-BRU
5/6seg
multi-stop
21h 32mBRU-SEA
$806
5/2qui
multi-stop
17h 00mSEA-BRU
5/13seg
multi-stop
21h 22mBRU-SEA
$886
5/2qui
multi-stopDelta
24h 40mSEA-BRU
5/13seg
multi-stopDelta
28h 05mBRU-SEA
$931
5/2qui
multi-stopUnited Airlines
13h 11mSEA-BRU
5/13seg
multi-stopUnited Airlines
37h 39mBRU-SEA
$946
5/2qui
multi-stopSWISS
18h 31mSEA-BRU
5/13seg
multi-stopSWISS
35h 22mBRU-SEA
$947
5/1qua
multi-stopTurkish Airlines
33h 50mSEA-BRU
5/6seg
multi-stopTurkish Airlines
35h 20mBRU-SEA
$1,093
5/3sex
multi-stop
13h 40mSEA-BRU
5/4sáb
multi-stop
14h 35mBRU-SEA
$1,494
5/2qui
multi-stopAmerican Airlines
24h 06mSEA-BRU
5/4sáb
multi-stopAmerican Airlines
42h 21mBRU-SEA
$2,618
5/2qui
multi-stopAmerican Airlines
24h 06mSEA-BRU
5/4sáb
multi-stopAmerican Airlines
29h 45mBRU-SEA
$10,764

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Search by airline

Search by price

Seattle - Brussels Airport Flights

Departure:

Seattle (SEA)United States

Destination:

Brussels Airport (BRU)Belgium

Return flight deals:

Brussels Airport - Seattle

Cabin classes: