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BRU - SEA

$328 Find cheap flights from Brussels to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Brussels to Seattle departing on 6/3. 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
0 bags
Wed 6/5
Wed 6/12

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brussels to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Brussels to Seattle.
In the last 7 days travelers have searched 42,573,820 times on KAYAK, and here is why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Brussels to Seattle 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
6:10 am - 10:25 amBRU-SEA
13h 15m1 stop
7:20 am - 8:45 amSEA-BRU
16h 25m1 stop
$695KLM
Find Deal
Tue, Sep 10 - Tue, Oct 8
6:10 am - 10:10 amBRU-SEA
13h 00m1 stop
10:56 pm - 8:45 amSEA-BRU
24h 49m1 stop
$697Delta
Find Deal
Mon, May 20 - Tue, May 28
10:50 am - 9:57 pmBRU-SEA
20h 07m2 stops
3:47 pm - 8:15 pmSEA-BRU
19h 28m2 stops
$740British Airways
Find Deal
Sun, Jun 16 - Tue, Jul 2
7:00 am - 2:30 pmBRU-SEA
16h 30m2 stops
7:00 am - 9:00 amSEA-BRU
17h 00m1 stop
$793Lufthansa
Find Deal
Sat, Sep 21 - Sat, Oct 5
7:00 am - 2:30 pmBRU-SEA
16h 30m2 stops
1:10 pm - 2:00 pmSEA-BRU
15h 50m2 stops
$824Lufthansa
Find Deal
Sat, Sep 21 - Sat, Oct 5
1:50 pm - 8:35 pmBRU-SEA
15h 45m1 stop
3:50 pm - 12:50 pmSEA-BRU
12h 00m1 stop
$828Icelandair
Find Deal
Sat, Sep 21 - Sat, Oct 5
9:50 am - 10:00 pmBRU-SEA
21h 10m3 stops
6:31 am - 8:05 amSEA-BRU
17h 34m2 stops
$962United Airlines
Find Deal
Sat, Oct 19 - Sat, Nov 2
1:50 pm - 5:40 pmBRU-SEA
12h 50m1 stop
2:35 pm - 11:55 amSEA-BRU
12h 20m1 stop
$982Icelandair
Find Deal
Thu, Jul 11 - Thu, Dec 12
10:15 am - 9:58 pmBRU-SEA
20h 43m1 stop
6:31 am - 8:55 amSEA-BRU
17h 24m1 stop
$1,074United Airlines
Find Deal
Mon, Jul 15 - Wed, Dec 11
7:55 pm - 11:30 amBRU-SEA
24h 35m1 stop
1:35 pm - 11:05 amSEA-BRU
12h 30m1 stop
$1,283British Airways
Find Deal
Sat, Jul 13 - Tue, Dec 10

Flights from Brussels to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Brussels to Seattle 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 Brussels to Seattle?

The average price of all flights from Brussels Bruxelles-National Airport to Seattle clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Seattle on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Brussels to Seattle. For your return ticket, we recommend flying on a Sunday and avoiding Thursdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Brussels Bruxelles-National Airport to Seattle, 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 Brussels Bruxelles-National Airport to Seattle is September, where tickets cost $633 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $936 and $781 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Brussels Bruxelles-National Airport to Seattle, 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 Brussels Bruxelles-National Airport to Seattle, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 15 days before departure.

Which airlines provide the cheapest flights from Brussels to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Brussels to Seattle found on KAYAK was with Icelandair for $494. KLM proposed a round-trip connection from $695 and Delta from $697.

Good to know

Low season

January

High season

July

Cheapest flight

$328
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 25% increase in price.
Flight from Brussels to Seattle

When to book flights from Brussels to Seattle

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

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

    In the last 3 days, the lowest price for a flight from Brussels Bruxelles-National Airport to Seattle was $328 for a one-way ticket and $695 for a round-trip.

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

    Yes

  • Which airports will I be using when flying from Brussels to Seattle?

    When flying out of Brussels you will be using Brussels Bruxelles-National. You will be landing at Seattle, also known as Seattle/Tacoma Intl.

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

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

  • Which airline alliances offer flights from Brussels to Seattle?

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

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

    The two airlines most popular with KAYAK users for flights from Brussels to Seattle are KLM and United Airlines. With an average price for the route of $941 and an overall rating of 7.8, KLM is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,124 and an overall rating of 7.4.

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

    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 Brussels to Seattle.

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

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

    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 Seattle with an airline and back to Brussels with another airline. Booking your flights between Brussels and SEA 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 Brussels to Seattle?

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

See more FAQs

Top 5 airlines serving from Brussels to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Brussels to Seattle. 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 Brussels to Seattle? 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.
7.8
KLMOverall score based on 1602 reviews
7.8Boarding
8.4Crew
7.3Food
7.2Entertainment
7.6Comfort
Airline reviews

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

8.0 ExcellentJacob Oluleke, Apr 2024LOS - AMS
Read more about KLM reviews

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

The flight was delayed for 2 hrs. Because they didn’t have a crew to fly. And it is not a first time for klm to do that. Last time they cancelled my filght and rebooked me 3 days later. Not reliable airline

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

I thought KLM was the best airline but the Lima - Amsterdam was 1 hours late, the Brussels - Amsterdam was 2.30 hours late and the Amsterdam - Lima was 30 minutes late

no issues at all... Kudos to the food. This time was really really good

The worst airline. Cancelled flight 30 min before boarding and rebooked on flight after 3 days.

I travel frequently. The flight was late again... KLM should really try and be on time

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

The plane was clean and the staff was friendly. Food and drinks as expected on international flights. The entertainment system was old style, with a pullout controller, and selections not as extensive as on other flights.

I requested wheel chair assistance , it was confirmed via email that inwoood get it but I didn’t get it . The last leg of my trip to Nigeria was the worst.

Short flight so not much to rate. Surprised I had to pay for a soda.

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

They should. Heck planes more often not when they are suppose to be leaving causing delays

Thankfully not a full flight so although my headphone jack wasn’t working 100% on my window seat, I was able to move to the aisle seat. Food was fine, nothing great but tasty enough. Crew were friendly and made enough rounds. Always have a decent experience with Aer Lingus

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Always find Aer Lingus reliable and good value for money. Food on this flight was pretty basic and the headphone Jack at my seat only worked for one ear. Little disappointed in movie selection, limited on recent releases. Staff are okay - but I always buy a cheap ticket so not like I expect first class opulence anyway!!!

Boarding was so quick, flight was ahead of time which is great and the pilot spoke clearly and was letting people know everything, amazing, love travelling with you 😊

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

Food and staff were excellent. Seats on Saga (business class) are comparable to domestic first class of US Airlines, regarding space and recline. Entertainment options had little international component.

Flight delayed Delay to the gate upon arrival Baggage took more than an hour so we missed our connecting!!! Terrible experience!

There is no food without paying $. Only soft drinks are included in your fare.

Some drinks and basic snack will be good. Water should be served at least once an hour. Blankets for folks who might be cold.

Pros: "Flight was relatively empty. Professional crew, comfortable seats"
Cons: "I think they skipped me with food service. Checking up on passengers who may have been sleeping would be nice. Headphones need to be purchased. Limited entertainment options."
Cons: "Communication about international COVID requirements before the day of departure."
Pros: "My seat cushion was out of alignment so not great. But I like the two side seat configuration."
Cons: "Boarding is a zoo. Board by row. It’s faster."
Pros: "Icelandair crew were very hospitable and accompodating"
Cons: "I have never sat in such a narrow seat. Literally could not put my hand down the side to pull out my seat belt. Two days later I still have sores from where the side of the seats hit my hips. Did not even provide complimentary peanuts."
Cons: "Took far too long for drinks service into the flight. Almost 2 hours in before drinks came around to me"

Touchscreens do not work. WiFi did not work. Food is possibly the worst on any European airline. Drinks came by only four times on a cross-Atlantic. The plane was two hours late because—it was announced—Lufthansa didn't have enough large aircraft in their fleet to accommodate an on-time flight.

It was freezing in the airplane. Everyone was wearing everything they had with them. The crew acknowledged it was cold, but did nothing about it

The flight attendants were superb and the service was outstanding. Some passengers with small children were very rude and inconsiderate, kids were constantly crying and some were running around the aisle unsupervised.

Terrible. There was a rattling noise the whole flight. The internet didn't work after I paid. Boarding is very disorganized.

Horrible flight attendant in back of economy that screamed at me, have already reported to United. Horrible food - for Gluten free, why would you assume the person is vegetarian? I was served some kind of horrible curry bean paste and multiple cold rolls and soggy vegetables with no seasoning... um no!

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

Sorry my last review for prg to fra was for this flight. My prg to fra flight was fine but my second flight back to Washington DC was with a slow awful crew who wouldn’t come in a timely manner to take trash and take trash before serving coffee tea and was shoving other people’s bottles of water on me when we were not traveling together

Lufthansa was amazing. Definitely upgrade your seat if you can swing it - they take very good care of their passengers. Customs in DC is nothing short of a nightmare though. Stood in line waiting to go back through security for 30 minutes, had to RUN through and across two terminals to make my connection and only had 5 minutes to spare. Terrible. Very very poor coordination by the airport staff and CBP.

I was ver pleased with the service all the way through

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

Coach seats are too tight. Seem designed for small people. Food different but OK. Staff helpful.

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

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

The crew was very attentive and kept busy serving a variety of treats!

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

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

Book cheap flights from Brussels to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Brussels to Seattle found on KAYAK in the last 72 hours.
6/3Mon
3 stops
46h 32mBRU-SEA
$328
6/3Mon
2 stops
19h 35mBRU-SEA
$428
6/3Mon
1 stopIcelandair
12h 50mBRU-SEA
$494
7/1Mon
3 stops
35h 51mBRU-SEA
$650
5/14Tue
2 stops
24h 55mBRU-SEA
$695
7/1Mon
1 stopBritish Airways
24h 35mBRU-SEA
$796
7/1Mon
2 stopsBritish Airways
35h 29mBRU-SEA
$806
7/1Mon
1 stopBrussels Airlines
18h 23mBRU-SEA
$873
7/20Sat
1 stopIcelandair
30h 30mBRU-SEA
$886
7/20Sat
2 stopsIberia
23h 53mBRU-SEA
$1,060

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Last minute flights from Brussels to Seattle

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 Brussels to Seattle that are departing in the next 10 days.
5/11Sat
multi-stop
16h 10mBRU-SEA
5/27Mon
multi-stop
15h 20mSEA-BRU
$626
5/11Sat
multi-stop
23h 16mBRU-SEA
5/27Mon
multi-stop
11h 55mSEA-BRU
$683
5/11Sat
multi-stopBritish Airways
21h 10mBRU-SEA
5/14Tue
multi-stopBritish Airways
15h 35mSEA-BRU
$845
5/11Sat
multi-stop
16h 10mBRU-SEA
5/14Tue
multi-stop
11h 55mSEA-BRU
$856
5/11Sat
multi-stopAir Canada
16h 27mBRU-SEA
5/27Mon
multi-stopAir Canada
17h 05mSEA-BRU
$913
5/11Sat
multi-stopDelta
34h 35mBRU-SEA
5/26Sun
multi-stopDelta
23h 05mSEA-BRU
$923
5/11Sat
multi-stopDelta
18h 52mBRU-SEA
5/26Sun
multi-stopDelta
23h 05mSEA-BRU
$929
5/11Sat
multi-stopAmerican Airlines
19h 09mBRU-SEA
5/13Mon
multi-stopAmerican Airlines
34h 00mSEA-BRU
$1,017
5/11Sat
multi-stop
19h 05mBRU-SEA
5/27Mon
multi-stop
18h 50mSEA-BRU
$1,277
5/11Sat
multi-stop
35h 35mBRU-SEA
5/14Tue
multi-stop
24h 35mSEA-BRU
$1,302

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Brussels - Seattle Flights

Departure:

Brussels (BRU)Belgium

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Brussels

Cabin classes: