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$676+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — SEA
dic. 6 — dic. 131
sáb. 12/6
sáb. 12/13
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 noviembre 6, 2025.

Round-trip from

$721
(Flighttix)

One-way from

$676
(Ovago)

Popular in

October

Cheapest in

December

Average price

$797
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. 10% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in November 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 noviembre 6, 2025.

This AirNGo deal was found by Cheapflights users on 11/5. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1110:00 amBRU - SEA
2 stops18h 16mAir Canada
jue. 12/255:50 amSEA - BRU
2 stops41h 00mAir Canada
Deal found 11/5$737
This Gotogate deal was found by Cheapflights users on 11/6. 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.
jue. 12/1112:50 pmBRU - SEA
1 stop13h 10mIcelandair
jue. 12/252:35 pmSEA - BRU
1 stop12h 20mIcelandair
Deal found 11/6$741
This Gotogate deal was found by Cheapflights users on 11/6. 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.
lun. 12/87:00 amBRU - SEA
2 stops21h 16mMultiple Airlines
mié. 12/2410:05 amSEA - BRU
2 stops36h 45mMultiple Airlines
Deal found 11/6$754
This Gotogate deal was found by Cheapflights users on 11/6. 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.
jue. 12/117:00 amBRU - SEA
1 stop14h 10mMultiple Airlines
jue. 12/258:10 amSEA - BRU
2 stops24h 20mMultiple Airlines
Deal found 11/6$769
This Air Canada deal was found by Cheapflights users on 11/6. 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.
sáb. 11/2210:00 amBRU - SEA
2 stops32h 31mAir Canada
sáb. 11/293:40 pmSEA - BRU
2 stops55h 10mAir Canada
Deal found 11/6$772
This Delta deal was found by Cheapflights users on 11/6. 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.
sáb. 11/2210:45 amBRU - SEA
2 stops19h 05mDelta
sáb. 11/293:00 pmSEA - BRU
1 stop14h 15mDelta
Deal found 11/6$776
This Mytrip deal was found by Cheapflights users on 11/6. 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.
dom. 11/307:55 pmCRL - SEA
2 stops28h 45mMultiple Airlines
mié. 12/102:35 pmSEA - CRL
2 stops19h 15mMultiple Airlines
Deal found 11/6$944
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
vie. 11/141:00 pmCRL - SEA
1 stop14h 20mMultiple Airlines
sáb. 11/228:12 amSEA - CRL
2 stops39h 18mMultiple Airlines
Deal found 11/5$945
This Mytrip deal was found by Cheapflights users on 11/6. 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.
jue. 12/117:25 amCRL - SEA
3 stops39h 55mMultiple Airlines
jue. 12/258:10 amSEA - CRL
3 stops23h 55mMultiple Airlines
Deal found 11/6$1,026
This Mytrip deal was found by Cheapflights users on 11/4. 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.
vie. 12/191:00 pmCRL - SEA
1 stop14h 20mMultiple Airlines
sáb. 1/102:35 pmSEA - CRL
2 stops22h 40mMultiple Airlines
Deal found 11/4$1,110
This Mytrip deal was found by Cheapflights users on 11/5. 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.
vie. 12/261:00 pmCRL - SEA
1 stop14h 20mMultiple Airlines
vie. 1/22:00 pmSEA - CRL
2 stops21h 45mMultiple Airlines
Deal found 11/5$1,277

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 noviembre 6, 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

mar. 5/5

7:00 am-6:36 pm

2 stops20h 36m

Seattle/Tacoma Intl

mar. 6/16

8:20 am-8:05 am

1 stop14h 45m

$727

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

jue. 4/30

10:20 am-11:35 pm

2 stops22h 15m

Seattle/Tacoma Intl

vie. 5/8

2:00 pm-7:50 pm

2 stops20h 50m

$731

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

dom. 3/1

8:05 am-11:35 am

1 stop12h 30m

Seattle/Tacoma Intl

mar. 3/10

11:35 pm-8:00 am

1 stop24h 25m

$740

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

jue. 4/30

1:50 pm-8:45 pm

1 stop15h 55m

Seattle/Tacoma Intl

vie. 5/8

7:00 pm-12:50 pm

1 stop32h 50m

$755

BrusselsSeattle

CRL - SEA

CRLSEA

Charleroi Brussels

dom. 11/30

7:55 pm-3:40 pm

2 stops28h 45m

Seattle/Tacoma Intl

mié. 12/10

2:35 pm-6:50 pm

2 stops19h 15m

$944

BrusselsSeattle

CRL - SEA

CRLSEA

Charleroi Brussels

jue. 12/11

7:25 am-2:20 pm

3 stops39h 55m

Seattle/Tacoma Intl

jue. 12/25

8:10 am-5:05 pm

3 stops23h 55m

$1,026

BrusselsSeattle

CRL - SEA

CRLSEA

Charleroi Brussels

vie. 12/19

9:05 pm-5:05 pm

2 stops29h 00m

Seattle/Tacoma Intl

sáb. 1/10

2:35 pm-10:15 pm

2 stops22h 40m

$1,223

BrusselsSeattle

CRL - SEA

CRLSEA

Charleroi Brussels

vie. 12/26

1:00 pm-6:20 pm

1 stop14h 20m

Seattle/Tacoma Intl

vie. 1/2

2:00 pm-8:45 pm

2 stops21h 45m

$1,277

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

mar. 11/11

6:55 pm-6:20 pm

1 stop32h 25m

$676

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

mar. 11/11

10:45 am-10:26 am

2 stops32h 41m

$735

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 14 results
1
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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, September is the cheapest month in which you can book a flight from Belgium to Seattle (average of $521). Flying from Belgium to Seattle in November is currently the most expensive (average of $673). 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 noviembre 6, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 43% on flights from Belgium to Seattle by exploring options for tickets in the evening.

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 noviembre 6, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Icelandair from Belgium to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,001 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,405 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Icelandair
7.1
Good
572 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,558 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,500 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from Belgium to Seattle?

    Departing from Belgium to Seattle will take you 20h 36m. Airlines will cover a distance of 4941 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, September is the cheapest month in which you can book a flight from Belgium to Seattle (average of $521). Flying from Belgium to Seattle in November is currently the most expensive (average of $673). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Tukwila
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Cle Elum
Marysville
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Federal Way
Fife
Issaquah
Aberdeen

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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 noviembre 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$524Average$700FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$584Average$723FlexibilityNo cancel feeOn-time69%
IcelandairCheapest$586Average$626FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$592Average$715FlexibilityNo cancel feeOn-time70%
KLMCheapest$605Average$684FlexibilityNo cancel feeOn-time75%
DeltaCheapest$616Average$764FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$651Average$723FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$674Average$871FlexibilityNo cancel feeOn-time76%

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