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$405+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — SEA
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 2, 2025.

Round-trip from

$634
(Finnair)

One-way from

$405
(Mytrip)

Popular in

July

Cheapest in

January

Average price

$740
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. 8% potential increase in price ($66 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 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 2, 2025.

This Finnair deal was found by Cheapflights users on 4/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/211:40 amBRU - SEA
2 stops20h 29mFinnair
Thu 5/155:40 pmSEA - BRU
1 stop15h 40mFinnair
Deal found 4/1$634
This British Airways deal was found by Cheapflights users on 4/1. 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 9/159:15 pmBRU - SEA
1 stop22h 55mBritish Airways
Sat 10/410:46 amSEA - BRU
2 stops18h 34mBritish Airways
Deal found 4/1$635
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Wed 9/103:15 pmBRU - SEA
1 stop29h 20mAmerican Airlines
Wed 9/2410:46 amSEA - BRU
2 stops18h 19mAmerican Airlines
Deal found 4/1$637
This Air Canada deal was found by Cheapflights users on 4/1. 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.
Tue 12/1610:00 amBRU - SEA
2 stops32h 50mAir Canada
Thu 1/15:45 amSEA - BRU
2 stops17h 10mAir Canada
Deal found 4/1$709
This Delta deal was found by Cheapflights users on 4/1. 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 5/318:00 amBRU - SEA
1 stop12h 40mDelta
Sat 6/216:00 amSEA - BRU
1 stop17h 40mDelta
Deal found 4/1$716
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Fri 5/210:00 amBRU - SEA
1 stop18h 37mUnited Airlines
Thu 5/1511:59 pmSEA - BRU
1 stop24h 01mUnited Airlines
Deal found 4/1$720
This Flighttix deal was found by Cheapflights users on 4/1. 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.
Mon 4/211:50 pmBRU - SEA
1 stop13h 00mIcelandair
Thu 4/243:45 pmSEA - BRU
1 stop12h 05mIcelandair
Deal found 4/1$732
This Expedia deal was found by Cheapflights users on 3/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/207:00 amBRU - SEA
1 stop14h 25mMultiple Airlines
Sun 5/47:20 amSEA - BRU
1 stop15h 45mMultiple Airlines
Deal found 3/31$789
This FlightHub deal was found by Cheapflights users on 4/1. 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.
Tue 12/166:55 pmBRU - SEA
2 stops59h 30mAer Lingus
Wed 12/311:22 amSEA - BRU
2 stops23h 13mAer Lingus
Deal found 4/1$1,079
This KLM deal was found by Cheapflights users on 4/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/28:00 amBRU - SEA
1 stop12h 45mKLM
Thu 4/176:10 pmSEA - BRU
1 stop11h 25mKLM
Deal found 4/1$1,103
This Mytrip deal was found by Cheapflights users on 4/1. 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.
Sat 4/57:40 amCRL - SEA
3 stops39h 41mMultiple Airlines
Wed 4/93:45 pmSEA - CRL
2 stops18h 15mMultiple Airlines
Deal found 4/1$1,110
This Trip.com deal was found by Cheapflights users on 3/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3110:20 amBRU - SEA
1 stop12h 30mScandinavian Airlines
Wed 6/114:00 pmSEA - BRU
1 stop14h 20mScandinavian Airlines
Deal found 3/31$3,061

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 2, 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

Fri 5/2

11:40 am-11:09 pm

2 stops20h 29m

Seattle/Tacoma Intl

Thu 5/15

5:40 pm-6:20 pm

1 stop15h 40m

$634

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 9/15

9:15 pm-11:10 am

1 stop22h 55m

Seattle/Tacoma Intl

Sat 10/4

10:46 am-2:20 pm

2 stops18h 34m

$635

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 9/10

3:15 pm-11:35 am

1 stop29h 20m

Seattle/Tacoma Intl

Wed 9/24

10:46 am-2:05 pm

2 stops18h 19m

$637

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 5/31

8:00 am-11:40 am

1 stop12h 40m

Seattle/Tacoma Intl

Sat 6/21

6:00 am-8:40 am

1 stop17h 40m

$716

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 5/2

10:00 am-7:37 pm

1 stop18h 37m

Seattle/Tacoma Intl

Thu 5/15

11:59 pm-9:00 am

1 stop24h 01m

$720

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 4/21

1:50 pm-5:50 pm

1 stop13h 00m

Seattle/Tacoma Intl

Thu 4/24

3:45 pm-12:50 pm

1 stop12h 05m

$732

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 4/20

7:00 am-12:25 pm

1 stop14h 25m

Seattle/Tacoma Intl

Sun 5/4

7:20 am-8:05 am

1 stop15h 45m

$789

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 7/19

10:00 am-6:36 pm

2 stops41h 36m

Seattle/Tacoma Intl

Sat 8/9

12:10 pm-8:00 am

2 stops34h 50m

$893

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 5/31

10:20 am-11:35 am

2 stops58h 15m

Seattle/Tacoma Intl

Fri 6/20

12:05 am-9:40 am

2 stops24h 35m

$1,474

BrusselsSeattle

CRL - SEA

CRLSEA

Charleroi Brussels

Mon 4/21

8:55 am-8:40 pm

2 stops20h 45m

Seattle/Tacoma Intl

Thu 4/24

2:15 pm-10:55 pm

2 stops23h 40m

$1,504

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 21 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 2, 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 2, 2025.
Emirates
8.0
Very good
3,192 reviews

Food

7.8

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Emirates
8.0
Very good
3,192 reviews
Emirates
8.0
Very good
3,192 reviews

Food

7.8

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Delta
8.0
Very good
7,898 reviews
Emirates
8.0
Very good
3,192 reviews

Food

7.8

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Finnair
7.6
Good
1,267 reviews
Emirates
8.0
Very good
3,192 reviews

Food

7.8

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
United Airlines
7.4
Good
8,615 reviews
Emirates
8.0
Very good
3,192 reviews

Food

7.8

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Turkish Airlines
7.3
Good
3,748 reviews
Emirates
8.0
Very good
3,192 reviews

Food

7.8

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

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?

    $545 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 Lufthansa and Iberia, with prices starting from $813 and $815, 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
Lakewood
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

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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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$524Average$700FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$586Average$778FlexibilityNo cancel feeOn-time76%
KLMCheapest$605Average$699FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$611Average$941FlexibilityNo cancel feeOn-time70%
DeltaCheapest$616Average$755FlexibilityNo 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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