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Bruxelles-National

$214+ 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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 87 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 June 12, 2025.

Round-trip from

$398
(Cheapflightsfares)

One-way from

$214
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$830
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. 15% potential increase in price ($118 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:20 pmSEA - BRU
1 stop18h 30mScandinavian Airlines
Fri 10/1010:20 amBRU - SEA
1 stop12h 40mScandinavian Airlines
Deal found 6/12$398
This Brussels Airlines deal was found by Cheapflights users on 6/12. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/611:02 amSEA - BRU
1 stop12h 58mBrussels Airlines
Wed 8/2012:00 pmBRU - SEA
1 stop17h 42mBrussels Airlines
Deal found 6/12$435
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/37:20 amSEA - BRU
1 stop15h 40mMultiple Airlines
Tue 8/1910:00 amBRU - SEA
2 stops21h 16mMultiple Airlines
Deal found 6/11$444
This Flightnetwork deal was found by Cheapflights users on 6/11. 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 8/37:20 amSEA - BRU
1 stop15h 40mAir Canada
Tue 8/1910:00 amBRU - SEA
1 stop19h 41mAir Canada
Deal found 6/11$463
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Thu 10/23:45 pmSEA - BRU
1 stop12h 05mIcelandair
Fri 10/101:50 pmBRU - SEA
1 stop15h 50mIcelandair
Deal found 6/12$465
This United Airlines deal was found by Cheapflights users on 6/10. 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 8/67:20 amSEA - BRU
1 stop15h 40mUnited Airlines
Fri 8/2210:00 amBRU - SEA
2 stops38h 52mUnited Airlines
Deal found 6/10$478
This Delta deal was found by Cheapflights users on 6/12. 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.
Sat 8/29:45 pmSEA - BRU
1 stop25h 45mDelta
Tue 8/1910:45 amBRU - SEA
1 stop21h 30mDelta
Deal found 6/12$498
This Lufthansa deal was found by Cheapflights users on 6/12. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/32:55 pmSEA - BRU
2 stops32h 05mLufthansa
Fri 8/1510:00 amBRU - SEA
2 stops37h 16mLufthansa
Deal found 6/12$520
This SWISS deal was found by Cheapflights users on 6/12. 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.
Wed 8/62:50 pmSEA - BRU
2 stops34h 25mSWISS
Sat 8/239:40 amBRU - SEA
2 stops22h 19mSWISS
Deal found 6/12$594
This British Airways deal was found by Cheapflights users on 6/10. 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.
Fri 8/221:30 pmSEA - BRU
1 stop22h 45mBritish Airways
Mon 9/17:05 pmBRU - SEA
1 stop25h 05mBritish Airways
Deal found 6/10$603
This Austrian Airlines deal was found by Cheapflights users on 6/12. 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 9/307:00 amSEA - BRU
2 stops24h 45mAustrian Airlines
Sat 10/116:50 amBRU - SEA
2 stops22h 54mAustrian Airlines
Deal found 6/12$675
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/12. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:30 amSEA - BRU
2 stops18h 35mTAP AIR PORTUGAL
Thu 10/95:55 amBRU - SEA
2 stops37h 24mTAP AIR PORTUGAL
Deal found 6/12$696

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 June 12, 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

Wed 10/1

4:20 pm-7:50 pm

1 stop18h 30m

Brussels Bruxelles-National

Fri 10/10

10:20 am-2:00 pm

1 stop12h 40m

$398

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 8/6

11:02 am-9:00 am

1 stop12h 58m

Brussels Bruxelles-National

Wed 8/20

12:00 pm-8:42 pm

1 stop17h 42m

$435

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Sun 8/3

7:20 am-8:00 am

1 stop15h 40m

Brussels Bruxelles-National

Tue 8/19

10:00 am-10:16 pm

2 stops21h 16m

$444

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Sun 8/3

7:20 am-8:00 am

1 stop15h 40m

Brussels Bruxelles-National

Tue 8/19

10:00 am-8:41 pm

1 stop19h 41m

$463

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Thu 10/2

3:45 pm-12:50 pm

1 stop12h 05m

Brussels Bruxelles-National

Fri 10/10

1:50 pm-8:40 pm

1 stop15h 50m

$465

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 8/6

7:20 am-8:00 am

1 stop15h 40m

Brussels Bruxelles-National

Fri 8/22

10:00 am-3:52 pm

2 stops38h 52m

$478

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Sat 8/2

9:45 pm-8:30 am

1 stop25h 45m

Brussels Bruxelles-National

Tue 8/19

10:45 am-11:15 pm

1 stop21h 30m

$498

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Sun 8/3

2:55 pm-8:00 am

2 stops32h 05m

Brussels Bruxelles-National

Fri 8/15

10:00 am-2:16 pm

2 stops37h 16m

$520

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 8/6

2:50 pm-10:15 am

2 stops34h 25m

Brussels Bruxelles-National

Sat 8/23

9:40 am-10:59 pm

2 stops22h 19m

$594

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Fri 8/22

1:30 pm-9:15 pm

1 stop22h 45m

Brussels Bruxelles-National

Mon 9/1

7:05 pm-11:10 am

1 stop25h 05m

$603

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 28 results
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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 June 9, 2025.

The best time to book flights from Seattle to Brussels Bruxelles-National Airport is 87 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 $1,096). 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 June 12, 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 June 12, 2025.
Get a feel of what it's like to fly with Delta, Austrian Airlines and Air France 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
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $398. Other airlines that can offer you cheap pricing are Brussels Airlines, from $435, and Air Canada, from $463. These flights start at 36% 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 $214. TAP AIR PORTUGAL flights start at $289 while deals on Air Canada start at $369 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 $1,096). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$393Average$512FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$495Average$678FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$501Average$589FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$518Average$740FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$529Average$699FlexibilityNo cancel feeOn-time69%
KLMCheapest$530Average$663FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$532Average$556FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$534Average$769FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$547Average$739FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$570Average$737FlexibilityNo cancel feeOn-time76%

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