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Cheap flights from Seattle (SEA) to Brussels from $330

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/22. 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.
SEA — BRU
Jun 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Brussels are usually found in January or December, booked 67 days in advance, depart on a Sunday or Tuesday and return on a Friday

Cheap flight deals from Seattle to Brussels

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Brussels (BR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 2, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$588

One-way from

$331
High demand for flights, 43% potential price rise
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Best time to find cheap flights, 26% potential price drop
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From Seattle/Tacoma Intl to Brussels
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One-way flight from Seattle/Tacoma Intl to Brussels
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What is the cheapest day to fly round-trip from Seattle to Brussels?

Flights from Seattle to Brussels are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Brussels.

How far in advance should I book a flight from Seattle to Brussels?

To save up to 17% on this flight, we recommend booking at least 48 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Seattle to Brussels from $570 1-2 weeks out and tickets from $848 for flights departing within the next 72 hours.

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

January can be a great time to fly to Brussels from Seattle with a flight ticket averaging about $776. Cheapflights users have found deals in the month of January for as cheap as $419. The most expensive prices can be found in the month of June.

What is the cheapest time of day to fly from SEA to BRU?

It’s optimal to fly from Seattle to Brussels in the evening. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the afternoon.

Cheap Air Canada flights from Seattle to Brussels

Explore cheap flight options specifically provided by Air Canada for the route between Seattle and Brussels. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Check out some of the cheapest Air Canada flights we've come across from Seattle to Brussels. It's recommended that users confirm their flight details before booking.
Tue 11/59:45 amSEA - BRU
1 stop13h 10mAir Canada
Thu 11/1410:00 amBRU - SEA
1 stop20h 14mAir Canada
Deal found 6/1$418
Wed 6/267:40 amSEA - BRU
1 stop13h 40mAir Canada
Wed 7/109:30 amBRU - SEA
1 stop34h 21mAir Canada
Deal found 6/1$1,277
Sat 6/297:40 amSEA - BRU
1 stop13h 40mAir Canada
Sat 7/69:30 amBRU - SEA
1 stop34h 21mAir Canada
Deal found 6/1$1,505
Thu 6/277:40 amSEA - BRU
1 stop13h 40mAir Canada
Sat 7/69:30 amBRU - SEA
1 stop34h 21mAir Canada
Deal found 6/2$1,577

Cheap United Airlines flights from Seattle to Brussels

Explore cheap flight options specifically provided by United Airlines for the route between Seattle and Brussels. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
To aid your search, here are some of the cheapest United Airlines flights we've found from Seattle to Brussels. Deals are refreshing constantly so come back soon for more options.
Sat 8/312:30 amSEA - BRU
1 stop23h 30mUnited Airlines
Wed 8/1410:15 amBRU - SEA
1 stop20h 43mUnited Airlines
Deal found 6/1$929
Sun 8/412:30 amSEA - BRU
1 stop23h 30mUnited Airlines
Mon 8/1212:00 pmBRU - SEA
1 stop21h 54mUnited Airlines
Deal found 6/1$983
Wed 7/3112:30 amSEA - BRU
2 stops22h 15mUnited Airlines
Tue 8/1312:00 pmBRU - SEA
1 stop21h 54mUnited Airlines
Deal found 6/2$988
Wed 6/266:51 amSEA - BRU
1 stop15h 54mUnited Airlines
Thu 7/42:15 pmBRU - SEA
2 stops28h 34mUnited Airlines
Deal found 6/1$1,124
Wed 6/266:51 amSEA - BRU
1 stop15h 54mUnited Airlines
Wed 7/1010:45 amBRU - SEA
1 stop18h 22mUnited Airlines
Deal found 6/2$1,265
Wed 6/266:51 amSEA - BRU
1 stop15h 54mUnited Airlines
Wed 7/1011:15 amBRU - SEA
2 stops22h 39mUnited Airlines
Deal found 6/1$1,269

Cheap Seattle to Brussels flights in June & July 2024

Find cheap flight options from Seattle to Brussels specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Prices were last updated on June 2, 2024.
The lowest fares we've come across on flights traveling from Seattle to Brussels in June and July 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Mon 6/176:55 pmSEA - BRU
1 stop32h 55mIcelandair
Fri 8/301:50 pmBRU - SEA
1 stop15h 45mIcelandair
Deal found 6/1$608
Mon 6/1711:00 pmSEA - BRU
1 stop24h 45mDelta
Fri 8/308:00 amBRU - SEA
2 stops21h 40mDelta
Deal found 6/2$785
Mon 6/177:06 amSEA - BRU
2 stops26h 54mBritish Airways
Fri 8/3011:15 amBRU - SEA
2 stops19h 41mBritish Airways
Deal found 6/1$794
Wed 6/261:25 pmSEA - BRU
2 stops35h 40mBritish Airways
Thu 7/119:10 pmBRU - SEA
1 stop23h 25mBritish Airways
Deal found 6/1$849
Wed 6/261:25 pmSEA - BRU
2 stops35h 40mBritish Airways
Thu 7/119:10 pmBRU - SEA
2 stops34h 18mBritish Airways
Deal found 6/1$859
Tue 6/1810:52 pmSEA - BRU
2 stops30h 13mBritish Airways
Mon 8/198:00 pmBRU - SEA
2 stops34h 56mBritish Airways
Deal found 6/1$864
Thu 6/611:51 amSEA - BRU
2 stops25h 44mMultiple Airlines
Thu 6/1311:20 amBRU - SEA
2 stops20h 32mMultiple Airlines
Deal found 6/1$900
Thu 6/62:04 pmSEA - BRU
2 stops23h 31mMultiple Airlines
Thu 6/138:35 amBRU - SEA
1 stop15h 25mMultiple Airlines
Deal found 6/1$910
Tue 6/187:10 amSEA - BRU
1 stop16h 35mKLM
Mon 8/196:10 amBRU - SEA
1 stop13h 05mKLM
Deal found 6/2$925

Seattle to Brussels 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Brussels in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
The lowest fares we've come across on flights traveling from Seattle to Brussels in June and July 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 11/59:45 amSEA - BRU
1 stop13h 10mAir Canada
Thu 11/1410:00 amBRU - SEA
1 stop20h 14mAir Canada
Deal found 6/1$418
Tue 10/16:55 pmSEA - BRU
1 stop32h 55mIcelandair
Thu 10/101:50 pmBRU - SEA
1 stop13h 05mIcelandair
Deal found 6/1$524
Thu 9/126:55 pmSEA - BRU
1 stop32h 55mIcelandair
Fri 9/201:50 pmBRU - SEA
1 stop15h 45mIcelandair
Deal found 6/2$534
Tue 9/33:50 pmSEA - BRU
1 stop12h 00mIcelandair
Sat 9/71:50 pmBRU - SEA
1 stop30h 30mIcelandair
Deal found 6/1$535
Fri 12/133:20 pmSEA - BRU
2 stops15h 45mMultiple Airlines
Sun 1/1210:00 amBRU - SEA
2 stops37h 31mMultiple Airlines
Deal found 6/2$537
Fri 12/133:10 pmSEA - BRU
1 stop19h 05mLufthansa
Sun 1/1211:30 amBRU - SEA
1 stop33h 40mLufthansa
Deal found 6/1$541
Fri 12/133:20 pmSEA - BRU
2 stops15h 45mAir Canada
Sun 1/1210:00 amBRU - SEA
2 stops44h 08mAir Canada
Deal found 6/1$543
Tue 11/512:57 pmSEA - BRU
3 stops58h 58mMultiple Airlines
Thu 11/146:40 pmBRU - SEA
2 stops27h 40mMultiple Airlines
Deal found 6/1$544
Fri 12/133:20 pmSEA - BRU
2 stops17h 05mLufthansa
Sun 1/1211:30 amBRU - SEA
1 stop33h 40mLufthansa
Deal found 6/1$549

One-way flights to Brussels from Seattle

Search for one-way flight options from Seattle to Brussels. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Some of the best available deals we've found on one-way flights from Seattle to Brussels. Users needing a return flight from Seattle to Brussels should utilize the search form above.
Sun 9/226:55 pmSEA - CRL
2 stops18h 50mMultiple Airlines
Deal found 5/31$330
Tue 7/23:50 pmSEA - BRU
1 stop12h 00mIcelandair
Deal found 6/2$331
Fri 7/261:50 pmSEA - CRL
3 stops58h 10mMultiple Airlines
Deal found 6/2$372
Fri 7/2611:00 pmSEA - BRU
2 stops49h 00mMultiple Airlines
Deal found 6/2$374
Fri 7/266:55 pmSEA - CRL
2 stops35h 15mMultiple Airlines
Deal found 6/2$390
Sun 9/226:55 pmSEA - BRU
2 stops28h 55mMultiple Airlines
Deal found 5/31$399
Tue 7/26:55 pmSEA - BRU
3 stops29h 15mMultiple Airlines
Deal found 6/2$412
Fri 7/261:50 pmSEA - BRU
3 stops34h 30mMultiple Airlines
Deal found 6/2$418
Sat 6/229:18 pmSEA - CRL
3 stops55h 22mMultiple Airlines
Deal found 6/1$428

Find flights from Seattle to Brussels within your budget

Customize your flight search to find flights from Seattle to Brussels that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$418 - $929

Route

Depart

Return

Price

Seattle/Tacoma IntlBrussels Bruxelles-National

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Tue 11/5

1 stop13h 10m

Brussels Bruxelles-National

Thu 11/14

1 stop20h 14m

$418

Seattle/Tacoma IntlBrussels Bruxelles-National

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Tue 10/1

1 stop32h 55m

Brussels Bruxelles-National

Thu 10/10

1 stop13h 05m

$524

Seattle/Tacoma IntlBrussels Bruxelles-National

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Thu 9/12

1 stop32h 55m

Brussels Bruxelles-National

Fri 9/20

1 stop15h 45m

$534

Seattle/Tacoma IntlBrussels Bruxelles-National

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Sat 10/12

2 stops24h 30m

Brussels Bruxelles-National

Tue 10/22

1 stop28h 30m

$543

Seattle/Tacoma IntlBrussels Bruxelles-National

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Tue 11/5

3 stops58h 58m

Brussels Bruxelles-National

Thu 11/14

2 stops27h 40m

$544

Seattle/Tacoma IntlBrussels Bruxelles-National

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Sat 10/12

1 stop24h 50m

Brussels Bruxelles-National

Tue 10/22

1 stop13h 25m

$558

Seattle/Tacoma IntlBrussels Bruxelles-National

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Sat 10/12

2 stops18h 39m

Brussels Bruxelles-National

Tue 10/22

1 stop24h 50m

$573

Seattle/Tacoma IntlBrussels Bruxelles-National

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Tue 10/1

1 stop15h 50m

Brussels Bruxelles-National

Thu 10/10

2 stops21h 37m

$588

Seattle/Tacoma IntlBrussels Bruxelles-National

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Sat 8/3

1 stop23h 30m

Brussels Bruxelles-National

Wed 8/14

1 stop20h 43m

$929

Flights are sorted by cheapest first

Deals found on 6/1

How far ahead should I book a flight from Seattle to Brussels?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Brussels. Price data was last updated on May 31, 2024.
The price you pay for your flight from Seattle to Brussels may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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What is the cheapest day to fly from Seattle to Brussels?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Brussels. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Brussels flight should consider departing on Sunday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Seattle to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Brussels by month

Plan your trip to Brussels by taking into account the average temperature and rainfall totals by month.

BRU

Temperature

37.4 - 62.6 °F

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Brussels. Reviews last updated June 2, 2024.
Read reviews from past customers who have flown Air Canada, United Airlines and American Airlines from Seattle to Brussels. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,410 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,410 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,507 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
1,940 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Austrian Airlines
7.7
Good
1,016 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
10,755 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Overall

8.0

Comfort

7.9

Food

7.4

Crew

8.6

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Brussels. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Brussels?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Brussels. On average, Seattle/Tacoma Intl has 0 outbound flights to Brussels per day from 12 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • Can I find flights from Seattle to Brussels for under $500 on Cheapflights?

    Yes, there are multiple flights from Seattle to Brussels for under $500. The cheapest flight booked recently is on Air Canada for just $418, but on average you can expect to pay $560.

  • What are the cheapest airlines flying from Seattle to Brussels round-trip?

    Air Canada, at $418, was found to be the cheapest airline from Seattle to Brussels.Alternate airlines to your destination round-trip include Icelandair and Delta. Users have found that Air Canada is 46% cheaper than the other options available to this destination.

  • What does SEA to BRU mean?

    SEA stands for Seattle/Tacoma Intl Airport, while BRU stands for Brussels Bruxelles-National Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Charleroi Brussels Airport (CRL), Antwerp Deurne Airport (ANR), Ostende-Bruges Airport (OST), Liège Bierset Airport (LGG) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from Seattle to Brussels that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Brussels flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Brussels with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Brussels flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Brussels that include hotel bookings?

    Yes. In addition to deals on Seattle to Brussels flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Brussels?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Brussels.

  • Can I find deals for business class flights from Seattle to Brussels?

    Yes. Cheapflights offers flight deals from Seattle to Brussels by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seattle to Brussels that allow pets onboard?

    Many airlines flying from Seattle to Brussels offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Brussels?

    Yes, you can often find last-minute deals on Seattle to Brussels flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Brussels flight deals updated?

    The Seattle to Brussels flight deals you see on this page were last updated on 6/2.

  • What are the most popular airlines that fly from Seattle to Brussels?

    Before booking your flight from Seattle to Brussels check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

  • What is the cheapest month to book a flight from Seattle to Brussels?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Brussels (average of $588). Flying from Seattle to Brussels in June is currently the most expensive (average of $1,217). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Seattle to Brussels
See prices for flight routes from nearby airports that may be better suited for you.

Seattle to Bruxelles-National flights
Portland to Bruxelles-National flights
Portland to Charleroi Brussels flights
Seattle to Charleroi Brussels flights
Portland to Antwerp flights

Top 10 airlines flying from Seattle to Brussels

Discover the top 10 airlines that operate flights from Seattle to Brussels. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$416Average$694FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest$423Average$830FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapest$459Average$734FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$516Average$673FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
LufthansaCheapest$521Average$750FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest$542Average$757FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest$550Average$634FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$569Average$897FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air FranceCheapest$572Average$857FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest$586Average$757FlexibilityNo cancel feeOn-time75%
Search KLM flights
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Search flights from Seattle to Brussels by cabin class

Find flights from Seattle to Brussels, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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How does Cheapflights help users find flights from Seattle to Brussels?

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Why should you use Cheapflights to find cheap flight tickets from Seattle to Brussels?

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Can Cheapflights find flights from Seattle to Brussels with no change fees?

Need flexible booking options for your flight to Brussels from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Brussels become cheaper?

Of course! You can now track prices for flights from Seattle to Brussels and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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