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$461+ Cheap flights from Belgium to Seattle (SEA)

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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — SEA
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from Belgium to Seattle

Keep the following information in mind while searching for Belgium to Seattle flight deals. Data was last updated April 29, 2025.

Round-trip from

$635
(lastminute.com)

One-way from

$461
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$764
From Belgium to Seattle/Tacoma Intl
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One-way flight from Belgium to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 6% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($14 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 Belgium to Seattle

Cheapest flights from Belgium to Seattle
Explore the most affordable flight options available from Belgium to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This lastminute.com deal was found by Cheapflights users on 4/28. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1610:20 amBRU - SEA
1 stop16h 30mAer Lingus
Sun 6/297:35 pmSEA - BRU
1 stop16h 05mAer Lingus
Deal found 4/28$635
This Mytrip deal was found by Cheapflights users on 4/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/210:20 amBRU - SEA
1 stop12h 30mScandinavian Airlines
Mon 6/164:00 pmSEA - BRU
1 stop14h 20mScandinavian Airlines
Deal found 4/28$644
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/141:50 pmBRU - SEA
1 stop15h 50mIcelandair
Sun 5/183:45 pmSEA - BRU
1 stop12h 05mIcelandair
Deal found 4/28$652
This American Airlines deal was found by Cheapflights users on 4/28. 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 9/153:00 pmBRU - SEA
1 stop29h 10mAmerican Airlines
Sat 10/48:20 pmSEA - BRU
1 stop28h 35mAmerican Airlines
Deal found 4/28$659
This British Airways deal was found by Cheapflights users on 4/28. 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.
Wed 9/109:10 pmBRU - SEA
1 stop23h 25mBritish Airways
Wed 9/241:30 pmSEA - BRU
1 stop21h 55mBritish Airways
Deal found 4/28$661
This Delta deal was found by Cheapflights users on 4/28. 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 5/148:00 amBRU - SEA
2 stops21h 19mDelta
Sun 5/187:10 amSEA - BRU
2 stops22h 25mDelta
Deal found 4/28$671
This Virgin Atlantic deal was found by Cheapflights users on 4/28. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/510:45 amBRU - SEA
2 stops22h 04mVirgin Atlantic
Thu 6/195:30 amSEA - BRU
2 stops18h 10mVirgin Atlantic
Deal found 4/28$695
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/198:30 amBRU - SEA
2 stops21h 11mAir Canada
Sat 7/57:20 amSEA - BRU
2 stops17h 25mAir Canada
Deal found 4/28$710
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1910:30 amBRU - SEA
2 stops19h 11mMultiple Airlines
Sat 7/57:20 amSEA - BRU
2 stops20h 55mMultiple Airlines
Deal found 4/28$718
This Lufthansa deal was found by Cheapflights users on 4/28. 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.
Tue 6/1712:00 pmBRU - SEA
1 stop17h 41mLufthansa
Wed 8/276:50 pmSEA - BRU
1 stop16h 00mLufthansa
Deal found 4/28$727
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 8/512:00 pmBRU - SEA
1 stop21h 56mUnited Airlines
Mon 8/1111:20 pmSEA - BRU
1 stop22h 55mUnited Airlines
Deal found 4/28$746
This Flighttix deal was found by Cheapflights users on 4/28. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/36:10 amBRU - SEA
1 stop14h 25mKLM
Sat 8/95:40 pmSEA - BRU
1 stop11h 55mKLM
Deal found 4/28$847

Cheapflights Fare Finder

Customize your flight search to find flights from Belgium to Seattle 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 29, 2025.
Use the filters below to find and compare flights from Belgium to Seattle that are best for you.

Fly from

Belgium

Fly to

Seattle

Route

Depart

Return

Price

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 6/16

10:20 am-5:50 pm

1 stop16h 30m

Seattle/Tacoma Intl

Sun 6/29

7:35 pm-8:40 pm

1 stop16h 05m

$635

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 6/2

10:20 am-1:50 pm

1 stop12h 30m

Seattle/Tacoma Intl

Mon 6/16

4:00 pm-3:20 pm

1 stop14h 20m

$644

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 5/14

1:50 pm-8:40 pm

1 stop15h 50m

Seattle/Tacoma Intl

Sun 5/18

3:45 pm-12:50 pm

1 stop12h 05m

$652

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 9/15

3:00 pm-11:10 am

1 stop29h 10m

Seattle/Tacoma Intl

Sat 10/4

8:20 pm-9:55 am

1 stop28h 35m

$659

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 9/10

9:10 pm-11:35 am

1 stop23h 25m

Seattle/Tacoma Intl

Wed 9/24

1:30 pm-8:25 pm

1 stop21h 55m

$661

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 5/14

8:00 am-8:19 pm

2 stops21h 19m

Seattle/Tacoma Intl

Sun 5/18

7:10 am-2:35 pm

2 stops22h 25m

$671

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 6/5

10:45 am-11:49 pm

2 stops22h 04m

Seattle/Tacoma Intl

Thu 6/19

5:30 am-8:40 am

2 stops18h 10m

$695

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 6/19

8:30 am-8:41 pm

2 stops21h 11m

Seattle/Tacoma Intl

Sat 7/5

7:20 am-9:45 am

2 stops17h 25m

$710

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 6/19

10:30 am-8:41 pm

2 stops19h 11m

Seattle/Tacoma Intl

Sat 7/5

7:20 am-1:15 pm

2 stops20h 55m

$718

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 6/17

12:00 pm-8:41 pm

1 stop17h 41m

Seattle/Tacoma Intl

Wed 8/27

6:50 pm-7:50 pm

1 stop16h 00m

$727

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 28 results
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Best time to book a flight from Belgium to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Belgium 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 Belgium to Seattle

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

Currently, January is the cheapest month in which you can book a flight from Belgium to Seattle (average of $238). Flying from Belgium to Seattle in July is currently the most expensive (average of $405). 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 BE to SEA?

Find hourly flight availability from Belgium to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belgium to Seattle as you normally would.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated April 29, 2025.
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
airBaltic
7.8
Good
178 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Belgium to Seattle. 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 into for flights to Seattle from Belgium?

    If you book a flight to Seattle from Belgium, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

  • What are the cheapest airlines to fly from Belgium to Seattle one-way?

    $627 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on British Airways and airBaltic, with prices starting from $742 and $748, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belgium to Seattle 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 Belgium to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Belgium to Seattle (average of $238). Flying from Belgium to Seattle in July is currently the most expensive (average of $405). 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

Traveling to a place near Belgium?

Book flights to Belgium if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Lynnwood
Aberdeen
Shelton
Silverdale
Redmond
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belgium to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Belgium to Seattle

Discover the top 8 airlines that operate flights from Belgium to Seattle. 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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$524Average$700FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$586Average$662FlexibilityNo cancel feeOn-time76%
KLMCheapest$605Average$699FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$611Average$941FlexibilityNo cancel feeOn-time70%
DeltaCheapest$616Average$764FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$651Average$723FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$670Average$780FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$694Average$847FlexibilityNo cancel feeOn-time69%

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