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$388+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — SEA
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 17, 2025.

Round-trip from

$647
(Gotogate)

One-way from

$388
(Mytrip)

Popular in

July

Cheapest in

January

Average price

$746
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 ($15 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 17, 2025.

This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/151:50 pmBRU - SEA
1 stop15h 50mIcelandair
Thu 5/2211:30 pmSEA - BRU
1 stop28h 20mIcelandair
Deal found 4/17$647
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/52:55 pmBRU - SEA
1 stop12h 25mBritish Airways
Mon 9/291:29 pmSEA - BRU
2 stops15h 51mBritish Airways
Deal found 4/17$659
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/110:25 amBRU - SEA
1 stop14h 32mDelta
Wed 5/147:16 amSEA - BRU
1 stop16h 24mDelta
Deal found 4/17$664
This Virgin Atlantic 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1510:45 amBRU - SEA
1 stop20h 58mVirgin Atlantic
Thu 5/227:35 pmSEA - BRU
2 stops28h 05mVirgin Atlantic
Deal found 4/17$667
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/210:00 amBRU - SEA
1 stop18h 37mUnited Airlines
Tue 6/177:20 amSEA - BRU
1 stop15h 40mUnited Airlines
Deal found 4/17$730
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1810:00 amBRU - SEA
2 stops34h 10mAir Canada
Wed 12/107:05 pmSEA - BRU
2 stops27h 50mAir Canada
Deal found 4/17$748
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/172:50 pmBRU - SEA
1 stop12h 30mAmerican Airlines
Sat 12/1311:57 pmSEA - BRU
2 stops28h 58mAmerican Airlines
Deal found 4/17$799
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/166:45 amBRU - SEA
2 stops21h 13mLufthansa
Sat 12/137:00 amSEA - BRU
1 stop16h 55mLufthansa
Deal found 4/17$810
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/209:35 amBRU - SEA
1 stop16h 24mMultiple Airlines
Sun 7/277:20 amSEA - BRU
1 stop15h 40mMultiple Airlines
Deal found 4/17$823
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/153:00 pmCRL - SEA
3 stops42h 10mMultiple Airlines
Thu 5/225:30 amSEA - CRL
3 stops32h 05mMultiple Airlines
Deal found 4/17$926
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.
Thu 7/176:55 amBRU - SEA
2 stops20h 41mSWISS
Tue 12/92:00 pmSEA - BRU
2 stops35h 00mSWISS
Deal found 4/17$962
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/27:40 pmBRU - SEA
2 stops33h 55mIberia
Tue 6/173:10 pmSEA - BRU
2 stops18h 45mIberia
Deal found 4/17$1,032

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 17, 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

Thu 5/15

1:50 pm-8:40 pm

1 stop15h 50m

Seattle/Tacoma Intl

Thu 5/22

11:30 pm-12:50 pm

1 stop28h 20m

$647

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 9/5

2:55 pm-6:20 pm

1 stop12h 25m

Seattle/Tacoma Intl

Mon 9/29

1:29 pm-2:20 pm

2 stops15h 51m

$659

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 5/1

10:25 am-3:57 pm

1 stop14h 32m

Seattle/Tacoma Intl

Wed 5/14

7:16 am-8:40 am

1 stop16h 24m

$664

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 5/15

10:45 am-10:43 pm

1 stop20h 58m

Seattle/Tacoma Intl

Thu 5/22

7:35 pm-8:40 am

2 stops28h 05m

$667

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 6/2

10:00 am-7:37 pm

1 stop18h 37m

Seattle/Tacoma Intl

Tue 6/17

7:20 am-8:00 am

1 stop15h 40m

$730

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 7/18

10:00 am-11:10 am

2 stops34h 10m

Seattle/Tacoma Intl

Wed 12/10

7:05 pm-7:55 am

2 stops27h 50m

$748

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 7/17

2:50 pm-6:20 pm

1 stop12h 30m

Seattle/Tacoma Intl

Sat 12/13

11:57 pm-1:55 pm

2 stops28h 58m

$799

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 7/16

6:45 am-6:58 pm

2 stops21h 13m

Seattle/Tacoma Intl

Sat 12/13

7:00 am-8:55 am

1 stop16h 55m

$810

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 7/20

9:35 am-4:59 pm

1 stop16h 24m

Seattle/Tacoma Intl

Sun 7/27

7:20 am-8:00 am

1 stop15h 40m

$823

BrusselsSeattle

CRL - SEA

CRLSEA

Charleroi Brussels

Thu 5/15

3:00 pm-12:10 am

3 stops42h 10m

Seattle/Tacoma Intl

Thu 5/22

5:30 am-10:35 pm

3 stops32h 05m

$926

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 26 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 $411). 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 17, 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 17, 2025.
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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
1,269 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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
775 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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
SWISS
7.5
Good
1,580 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

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?

    $560 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 Icelandair and Air Europa, with prices starting from $692 and $914, 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 $411). 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
Renton
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Aberdeen
Kent
Lynnwood
Shelton
Silverdale
Redmond
Issaquah

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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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$524Average$700FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$586Average$702FlexibilityNo 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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