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Bruxelles-National

$256+ Cheap flights from Seattle (SEA) to Bruxelles-National (BRU)

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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRU
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Brussels Bruxelles-National are usually found in February or November, booked 69 days in advance, depart on a Tuesday or Monday and return on a Sunday

Cheap flight deals from Seattle to Bruxelles-National

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Bruxelles-National (BRU). 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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$469
(Flightnetwork)

One-way from

$256
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$633
Provider with most accurate pricing for Seattle/Tacoma Intl-Brussels Bruxelles-National flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Brussels Bruxelles-National flights.
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From Seattle/Tacoma Intl to Brussels Bruxelles-National
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One-way flight from Seattle/Tacoma Intl to Brussels Bruxelles-National
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Highest demand for flights based on searches. 18% potential increase in price ($143 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Seattle to Bruxelles-National

Cheapest flights from Seattle to Bruxelles-National
Explore the most affordable flight options available from Seattle to Bruxelles-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/113:45 pmSEA - BRU
1 stop12h 05mIcelandair
Mon 5/191:50 pmBRU - SEA
1 stop13h 00mIcelandair
Deal found 4/16$469
This Air Canada deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:45 amSEA - BRU
2 stops17h 10mAir Canada
Tue 12/210:00 amBRU - SEA
2 stops32h 50mAir Canada
Deal found 4/16$499
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/55:07 amSEA - BRU
2 stops17h 48mUnited Airlines
Thu 11/1310:00 amBRU - SEA
2 stops41h 09mUnited Airlines
Deal found 4/16$522
This Booking.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/212:20 pmSEA - BRU
1 stop34h 30mBrussels Airlines
Tue 9/239:40 amBRU - SEA
1 stop34h 34mBrussels Airlines
Deal found 4/16$538
This FlightHub deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/242:00 pmSEA - BRU
1 stop13h 35mLufthansa
Tue 12/210:00 amBRU - SEA
2 stops37h 30mLufthansa
Deal found 4/16$554
This United deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:30 amSEA - BRU
3 stops41h 25mMultiple Airlines
Thu 11/1310:30 amBRU - SEA
2 stops20h 20mMultiple Airlines
Deal found 4/16$573
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/302:05 pmSEA - BRU
1 stop15h 30mDelta
Mon 8/253:05 pmBRU - SEA
1 stop29h 30mDelta
Deal found 4/16$578
This SWISS deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/84:25 pmSEA - BRU
1 stop17h 50mSWISS
Mon 12/158:10 pmBRU - SEA
2 stops33h 44mSWISS
Deal found 4/17$579
This American Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/229:44 amSEA - BRU
2 stops19h 36mAmerican Airlines
Mon 9/293:00 pmBRU - SEA
1 stop29h 10mAmerican Airlines
Deal found 4/16$583
This British Airways deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/48:20 pmSEA - BRU
1 stop33h 05mBritish Airways
Mon 8/2510:40 amBRU - SEA
1 stop33h 30mBritish Airways
Deal found 4/16$589
This Scandinavian Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/254:00 pmSEA - BRU
1 stop17h 30mScandinavian Airlines
Sat 8/307:10 pmBRU - SEA
1 stop27h 40mScandinavian Airlines
Deal found 4/17$646
This Austrian Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/197:00 amSEA - BRU
2 stops27h 10mAustrian Airlines
Sat 8/309:50 amBRU - SEA
2 stops41h 59mAustrian Airlines
Deal found 4/17$690

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Bruxelles-National 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 2,558,603 searches. Data last updated April 17, 2025.
Use the filters below to find and compare flights from Seattle to Brussels Bruxelles-National Airport that are best for you.

Fly from

Seattle

Fly to

Bruxelles-National

Route

Depart

Return

Price

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Sun 5/11

3:45 pm-12:50 pm

1 stop12h 05m

Brussels Bruxelles-National

Mon 5/19

1:50 pm-5:50 pm

1 stop13h 00m

$469

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Mon 8/4

10:00 am-8:00 am

2 stops37h 00m

Brussels Bruxelles-National

Thu 8/21

10:00 am-10:16 pm

2 stops45h 16m

$530

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Tue 9/2

12:20 pm-7:50 am

1 stop34h 30m

Brussels Bruxelles-National

Tue 9/23

9:40 am-11:14 am

1 stop34h 34m

$538

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Tue 9/9

7:20 am-8:05 am

1 stop15h 45m

Brussels Bruxelles-National

Wed 12/10

10:10 am-10:29 pm

1 stop21h 19m

$540

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 7/30

2:20 pm-7:50 pm

2 stops20h 30m

Brussels Bruxelles-National

Thu 8/21

10:00 am-2:16 pm

2 stops37h 16m

$577

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 7/30

2:05 pm-2:35 pm

1 stop15h 30m

Brussels Bruxelles-National

Mon 8/25

3:05 pm-11:35 am

1 stop29h 30m

$578

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Mon 9/8

4:25 pm-7:15 pm

1 stop17h 50m

Brussels Bruxelles-National

Mon 12/15

8:10 pm-8:54 pm

2 stops33h 44m

$579

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Mon 9/22

9:44 am-2:20 pm

2 stops19h 36m

Brussels Bruxelles-National

Mon 9/29

3:00 pm-11:10 am

1 stop29h 10m

$583

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 5/14

11:30 am-1:15 pm

2 stops16h 45m

Brussels Bruxelles-National

Wed 5/21

10:00 am-7:37 pm

1 stop18h 37m

$585

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Mon 8/4

8:20 pm-2:25 pm

1 stop33h 05m

Brussels Bruxelles-National

Mon 8/25

10:40 am-11:10 am

1 stop33h 30m

$589

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 19 results
1
2

Compare providers for flights from Seattle to Bruxelles-National

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Bruxelles-National in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*2 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*2 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Brussels Bruxelles-National Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Brussels Bruxelles-National Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seattle-Brussels Bruxelles-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Brussels Bruxelles-National Airport flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Brussels Bruxelles-National Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Bruxelles-National

Have a flexible travel schedule? Discover the best time to fly to Bruxelles-National 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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Brussels Bruxelles-National Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Bruxelles-National. Price data was last updated on April 11, 2025.

The best time to book flights from Seattle to Brussels Bruxelles-National Airport is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Brussels Bruxelles-National Airport?

Currently, November is the cheapest month in which you can book a flight from Seattle to Brussels Bruxelles-National Airport (average of $614). Flying from Seattle to Brussels Bruxelles-National Airport in June is currently the most expensive (average of $1,146). 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.

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

Find hourly flight availability from Seattle to Bruxelles-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

It’s optimal to fly from Seattle to Brussels Bruxelles-National Airport in the morning. By choosing this option you can save up to 10% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Bruxelles-National. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Brussels Bruxelles-National Airport flight should consider departing on Sunday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Bruxelles-National by month

Plan your trip to Bruxelles-National by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Brussels Bruxelles-National Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. August is typically the driest time to visit Brussels Bruxelles-National Airport when rainfall is around 1.6 in.

Temperature in Bruxelles-National by month

Plan your trip to Bruxelles-National by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Brussels Bruxelles-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

Reviews of airlines servicing Bruxelles-National

Get insights into the airlines that provide service to Bruxelles-National. 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 Bruxelles-National. Reviews last updated April 17, 2025.
Get a feel of what it's like to fly with Delta, KLM and Austrian Airlines from Seattle to Brussels by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
775 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,580 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Bruxelles-National. 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 Bruxelles-National?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Brussels Bruxelles-National. You should not have trouble finding flights to Brussels Bruxelles-National from Seattle/Tacoma Intl; the airport handles an average of 0 outbound flights to Brussels Bruxelles-National per day. You should also have plenty of airline options to choose from since 11 airlines have flights from the Seattle airport to Brussels Bruxelles-National. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

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

    Cheapflights users have booked flights from Seattle to Brussels Bruxelles-National Airport round-trip from $469. Other airlines that can offer you cheap pricing are Virgin Atlantic, from $540, and Air Canada, from $603. These flights start at 27% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Brussels Bruxelles-National Airport one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $256. KLM flights start at $469 while deals on Delta start at $493 one-way.

  • Can I find deals for flights from Seattle to Bruxelles-National that include hotel bookings?

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

  • How can I find direct flights from Seattle to Bruxelles-National?

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

  • Can I find deals for business class flights from Seattle to Bruxelles-National?

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

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

    Currently, November is the cheapest month in which you can book a flight from Seattle to Brussels Bruxelles-National Airport (average of $614). Flying from Seattle to Brussels Bruxelles-National Airport in June is currently the most expensive (average of $1,146). 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 Bruxelles-National

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Bruxelles-National flights
Seattle to Charleroi Brussels flights
Portland to Charleroi Brussels flights

Top 10 airlines flying from Seattle to Bruxelles-National

Discover the top 10 airlines that operate flights from Seattle to Bruxelles-National. 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 2,558,603 searches. Data last updated April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$403Average$538FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$495Average$659FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$501Average$589FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$529Average$656FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$532Average$544FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$532Average$684FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$543Average$724FlexibilityNo cancel feeOn-time67%
DeltaCheapest$549Average$769FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$554Average$768FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$580Average$745FlexibilityNo cancel feeOn-time76%

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