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$302+ Cheap flights from Seattle (SEA) to Belgium

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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRU
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Seattle to Belgium

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Belgium (BE0). 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 January 21, 2025.

Round-trip from

$476
(Ticket)

One-way from

$321
(Kiwi.com)
From Seattle/Tacoma Intl to Belgium
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One-way flight from Seattle/Tacoma Intl to Belgium
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Find flight deals from Seattle to Belgium

Cheapest flights from Seattle to Belgium
Explore the most affordable flight options available from Seattle to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Flighttix deal was found by Cheapflights users on 1/21. 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.
Thu 1/232:35 pmSEA - BRU
1 stop12h 20mIcelandair
Thu 2/612:50 pmBRU - SEA
1 stop13h 10mIcelandair
Deal found 1/21$437
This Flighttix deal was found by Cheapflights users on 1/21. 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.
Wed 3/195:45 amSEA - BRU
2 stops18h 10mMultiple Airlines
Wed 3/2611:55 amBRU - SEA
1 stop16h 29mMultiple Airlines
Deal found 1/21$497
This Gotogate deal was found by Cheapflights users on 1/21. 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.
Tue 3/410:35 amSEA - BRU
2 stops36h 20mAir Canada
Tue 3/1110:00 amBRU - SEA
2 stops40h 25mAir Canada
Deal found 1/21$498
This Flightnetwork deal was found by Cheapflights users on 1/21. 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.
Tue 3/46:50 pmSEA - BRU
1 stop29h 35mBritish Airways
Tue 3/112:45 pmBRU - SEA
1 stop35h 10mBritish Airways
Deal found 1/21$517
This KLM deal was found by Cheapflights users on 1/20. 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 3/197:15 amSEA - BRU
1 stop17h 45mKLM
Wed 3/268:05 amBRU - SEA
1 stop12h 35mKLM
Deal found 1/20$518
This American Airlines deal was found by Cheapflights users on 1/21. 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 3/31:33 pmSEA - BRU
2 stops15h 22mAmerican Airlines
Mon 3/1011:50 amBRU - SEA
1 stop32h 30mAmerican Airlines
Deal found 1/21$524
This United deal was found by Cheapflights users on 1/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/297:08 amSEA - BRU
2 stops17h 07mUnited Airlines
Fri 2/2111:55 amBRU - SEA
1 stop17h 24mUnited Airlines
Deal found 1/21$543
This Delta deal was found by Cheapflights users on 1/21. 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 4/27:15 amSEA - BRU
1 stop16h 25mDelta
Tue 4/158:00 amBRU - SEA
1 stop12h 45mDelta
Deal found 1/21$553
This Finnair deal was found by Cheapflights users on 1/21. 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.
Wed 4/21:25 pmSEA - BRU
2 stops19h 55mFinnair
Tue 4/1511:40 amBRU - SEA
2 stops20h 09mFinnair
Deal found 1/21$554
This KAYAK deal was found by Cheapflights users on 1/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1310:00 amSEA - BRU
2 stops37h 05mLufthansa
Thu 10/210:00 amBRU - SEA
2 stops36h 05mLufthansa
Deal found 1/20$601
This SWISS deal was found by Cheapflights users on 1/20. 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.
Tue 9/161:45 pmSEA - BRU
2 stops15h 30mSWISS
Mon 9/298:05 pmBRU - SEA
2 stops31h 31mSWISS
Deal found 1/20$631
This Air France deal was found by Cheapflights users on 1/21. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/287:15 amSEA - BRU
1 stop17h 45mAir France
Tue 4/110:45 amBRU - SEA
1 stop20h 40mAir France
Deal found 1/21$676

Find flights from Seattle to Belgium within your budget

Customize your flight search to find flights from Seattle to Belgium 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 3/19

5:45 am-7:55 am

2 stops18h 10m

Brussels Bruxelles-National

Wed 3/26

11:55 am-8:24 pm

1 stop16h 29m

$497

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Tue 3/4

10:35 am-7:55 am

2 stops36h 20m

Brussels Bruxelles-National

Tue 3/11

10:00 am-6:25 pm

2 stops40h 25m

$498

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Tue 3/4

6:50 pm-9:25 am

1 stop29h 35m

Brussels Bruxelles-National

Tue 3/11

2:45 pm-5:55 pm

1 stop35h 10m

$517

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 3/19

8:10 am-7:15 am

1 stop15h 05m

Brussels Bruxelles-National

Wed 3/26

10:00 am-6:05 pm

2 stops40h 05m

$518

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 3/19

7:15 am-9:00 am

1 stop17h 45m

Brussels Bruxelles-National

Wed 3/26

6:15 am-12:40 pm

1 stop14h 25m

$522

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Mon 3/3

1:33 pm-1:55 pm

2 stops15h 22m

Brussels Bruxelles-National

Mon 3/10

11:50 am-12:20 pm

1 stop32h 30m

$524

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 4/2

7:15 am-8:40 am

1 stop16h 25m

Brussels Bruxelles-National

Tue 4/15

8:00 am-11:45 am

1 stop12h 45m

$553

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 4/2

1:25 pm-6:20 pm

2 stops19h 55m

Brussels Bruxelles-National

Tue 4/15

11:40 am-10:49 pm

2 stops20h 09m

$554

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Mon 5/5

12:20 pm-7:50 am

1 stop34h 30m

Brussels Bruxelles-National

Fri 5/30

9:40 am-11:16 am

1 stop34h 36m

$569

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Fri 3/28

7:15 am-9:00 am

1 stop17h 45m

Brussels Bruxelles-National

Tue 4/1

10:45 am-10:25 pm

1 stop20h 40m

$676

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 25 results
1
2
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Best time to book a flight from Seattle to Belgium

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

Travel insights for flights from Seattle to Belgium

Get recent, data-driven insights about flights from Seattle to Belgium including ideal travel times, pricing trends, and more.

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

Currently, November is the cheapest month in which you can book a flight from Seattle to Belgium (average of $614). Flying from Seattle to Belgium in June is currently the most expensive (average of $1,146). 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 BE?

Find hourly flight availability from Seattle to Belgium. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

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

Rainfall in Belgium by month

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

In terms of precipitation, rainfall in Belgium 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 Belgium when rainfall is around 1.6 in.

Temperature in Belgium by month

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

If weather is an important factor for your trip to Belgium, 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 Belgium

Get insights into the airlines that provide service to Belgium. 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 Belgium. Reviews last updated January 21, 2025.
Peruse reviews from past customers who have flown with British Airways, Icelandair and KLM from Seattle to Belgium to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
665 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,490 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Belgium.

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

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as $404. However, be on the lookout for offers from TAP AIR PORTUGAL and United Airlines, as they are both options that can get you from Seattle to Belgium for a low price.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Seattle to Belgium (average of $614). Flying from Seattle to Belgium in June is currently the most expensive (average of $1,146). 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 Belgium

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Top 10 airlines flying from Seattle to Belgium

Discover the top 10 airlines that operate flights from Seattle to Belgium. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$402Average$566FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$459Average$698FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$501Average$694FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$501Average$637FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$529Average$623FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$532Average$714FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$535Average$722FlexibilityNo cancel feeOn-time75%
DeltaCheapest$561Average$881FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$565Average$851FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$580Average$775FlexibilityNo cancel feeOn-time76%
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