What airlines fly to Belgium?

Lufthansa, Icelandair and United Airlines are the top three most popular airlines that fly to Belgium from State of Washington according to our data. Lufthansa is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Belgium. Keep in mind that there are 6 different airlines that fly to Belgium on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Washington to Belgium?

Icelandair, British Airways, and United Airlines are the most popular carriers operating from Washington to Belgium

When did momondo last update prices for flights from Washington to Belgium?

Prices for flights from Washington to Belgium are refreshed on a daily basis.

How many operators does momondo search for flights from Washington to Belgium?

The number of operators available for flights from Washington to Belgium is 6 as of September 2026.

How old do you have to be to fly from Washington to Belgium?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Belgium.

What documentation or ID do you need to fly to Belgium?

The necessary travel and health documents for your Belgium trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$197 Cheap Flights from Washington to Belgium in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Belgium

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 pm - 11:55 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

12h 20m1 stop Reykjavik Keflavik Intl

12:50 pm - 5:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

13h 10m1 stop Reykjavik Keflavik Intl

$458Icelandair

Wed, Dec 2 - Sun, Dec 6

2:35 pm - 11:55 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

12h 20m1 stop Reykjavik Keflavik Intl

12:50 pm - 5:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

13h 10m1 stop Reykjavik Keflavik Intl

$458Icelandair

Wed, Dec 2 - Sun, Dec 13

6:45 pm - 8:55 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 10m1 stop London Heathrow

8:35 pm - 11:25 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

23h 50m1 stop London Heathrow

$570British Airways

Mon, Nov 30 - Wed, Feb 17

6:45 pm - 8:55 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 10m1 stop London Heathrow

5:35 pm - 11:25 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

26h 50m1 stop London Heathrow

$570British Airways

Mon, Nov 30 - Mon, Feb 8

7:05 pm - 7:50 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

27h 45m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

10:00 am - 9:57 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

20h 57m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$575Air Canada

Mon, Nov 30 - Tue, Feb 9

7:05 pm - 7:50 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

27h 45m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

10:00 am - 9:32 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

32h 32m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$575Air Canada

Sun, Nov 29 - Thu, Feb 18

7:00 am - 8:55 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

16h 55m1 stop Chicago O'Hare Intl

11:15 am - 9:39 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

19h 24m1 stop Newark

$577United Airlines

Wed, Nov 4 - Thu, Nov 12

10:50 am - 8:55 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

13h 05m1 stop Chicago O'Hare Intl

11:55 am - 8:56 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

18h 01m1 stop Washington, D.C. Dulles Intl

$577United Airlines

Wed, Nov 4 - Wed, Nov 11

11:59 pm - 7:40 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

22h 41m1 stop Atlanta Hartsfield-Jackson

12:55 pm - 11:57 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

20h 02m1 stop Atlanta Hartsfield-Jackson

$607Delta

Tue, Oct 20 - Fri, Nov 13

6:00 am - 7:40 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

16h 40m1 stop Atlanta Hartsfield-Jackson

12:55 pm - 11:57 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

20h 02m1 stop Atlanta Hartsfield-Jackson

$607Delta

Tue, Oct 20 - Wed, Nov 11

Cheap last minute flights

Enter your travel dates to find the best prices.

7:00 pm - 12:55 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

32h 55m1 stop Reykjavik Keflavik Intl

1:50 pm - 8:40 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

15h 50m1 stop Reykjavik Keflavik Intl

$485Icelandair

Wed, Sep 30 - Thu, Oct 15

7:00 pm - 12:55 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

32h 55m1 stop Reykjavik Keflavik Intl

1:50 pm - 8:40 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

15h 50m1 stop Reykjavik Keflavik Intl

$518Icelandair

Wed, Sep 30 - Fri, Oct 16

8:59 am - 7:40 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

13h 41m1 stop Atlanta Hartsfield-Jackson

9:45 am - 7:04 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

18h 19m1 stop Atlanta Hartsfield-Jackson

$637Delta

Wed, Sep 30 - Wed, Oct 21

8:59 am - 7:40 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

13h 41m1 stop Atlanta Hartsfield-Jackson

10:25 am - 11:52 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

34h 27m1 stop Amsterdam Schiphol

$657Delta

Wed, Sep 30 - Mon, Oct 19

8:20 pm - 9:50 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

28h 30m1 stop London Heathrow

3:15 pm - 11:35 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

29h 20m1 stop London Heathrow

$788British Airways

Fri, Oct 2 - Tue, Oct 20

7:00 pm - 12:55 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

32h 55m1 stop Reykjavik Keflavik Intl

8:25 pm - 4:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

28h 35m2 stops Barcelona-El Prat Frankfurt am Main

$857Multiple Airlines

Tue, Sep 29 - Wed, Oct 21

7:00 pm - 12:55 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

32h 55m1 stop Reykjavik Keflavik Intl

10:00 am - 6:45 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

17h 45m2 stops Dublin Calgary

$858Multiple Airlines

Tue, Sep 29 - Tue, Oct 20

8:20 pm - 9:50 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

28h 30m1 stop London Heathrow

11:00 am - 6:25 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

16h 25m1 stop London Heathrow

$877British Airways

Fri, Oct 2 - Wed, Oct 21

7:00 am - 9:00 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 00m1 stop Chicago O'Hare Intl

12:45 pm - 4:59 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

13h 14m1 stop Munich Franz Josef Strauss

$935Lufthansa

Wed, Sep 30 - Sun, Oct 18

6:50 pm - 7:55 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

16h 05m1 stop Munich Franz Josef Strauss

6:20 am - 12:20 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

15h 00m1 stop Frankfurt am Main

$944Lufthansa

Wed, Sep 30 - Sun, Oct 18

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Icelandair flights from State of Washington to Belgium

Our best Icelandair deals on State of Washington to Belgium flight tickets

Icelandair

Dec 2

SEA2:35 pmSeattle/Tacoma Intl

12h 20m

1 stop

BRU11:55 amBrussels Bruxelles-National

Dec 6

BRU12:50 pmBrussels Bruxelles-National

13h 10m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$458

Icelandair

Nov 18

SEA2:35 pmSeattle/Tacoma Intl

12h 20m

1 stop

BRU11:55 amBrussels Bruxelles-National

Dec 1

BRU12:50 pmBrussels Bruxelles-National

13h 10m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$471

Icelandair

Oct 21

SEA3:40 pmSeattle/Tacoma Intl

12h 15m

1 stop

BRU12:55 pmBrussels Bruxelles-National

Nov 10

BRU12:50 pmBrussels Bruxelles-National

13h 10m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$482

British Airways flights from State of Washington to Belgium

Our best British Airways deals on State of Washington to Belgium flight tickets

British Airways

Nov 30

SEA6:45 pmSeattle/Tacoma Intl

17h 10m

1 stop

BRU8:55 pmBrussels Bruxelles-National

Feb 8

BRU5:35 pmBrussels Bruxelles-National

26h 50m

1 stop

SEA11:25 amSeattle/Tacoma Intl

$570

British Airways

Nov 30

SEA6:45 pmSeattle/Tacoma Intl

12h 55m

1 stop

BRU4:40 pmBrussels Bruxelles-National

Feb 17

BRU2:00 pmBrussels Bruxelles-National

19h 35m

2 stops

SEA12:35 amSeattle/Tacoma Intl

$580

British Airways

Nov 29

SEA6:45 pmSeattle/Tacoma Intl

31h 25m

1 stop

BRU11:10 amBrussels Bruxelles-National

Feb 17

BRU2:00 pmBrussels Bruxelles-National

30h 25m

1 stop

SEA11:25 amSeattle/Tacoma Intl

$588

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Belgium that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 12/2

2:35 pm-11:55 am

1 stop12h 20m

Brussels Bruxelles-National

Sun 12/6

12:50 pm-5:00 pm

1 stop13h 10m

$458

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 12/2

2:35 pm-11:55 am

1 stop12h 20m

Brussels Bruxelles-National

Sun 12/13

12:50 pm-5:00 pm

1 stop13h 10m

$458

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Mon 11/30

6:45 pm-8:55 pm

1 stop17h 10m

Brussels Bruxelles-National

Wed 2/17

8:35 pm-11:25 am

1 stop23h 50m

$570

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Mon 11/30

6:45 pm-8:55 pm

1 stop17h 10m

Brussels Bruxelles-National

Mon 2/8

5:35 pm-11:25 am

1 stop26h 50m

$570

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Mon 11/30

7:05 pm-7:50 am

2 stops27h 45m

Brussels Bruxelles-National

Tue 2/9

10:00 am-9:57 pm

2 stops20h 57m

$575

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Sun 11/29

7:05 pm-7:50 am

2 stops27h 45m

Brussels Bruxelles-National

Thu 2/18

10:00 am-9:32 am

2 stops32h 32m

$575

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 11/4

7:00 am-8:55 am

1 stop16h 55m

Brussels Bruxelles-National

Thu 11/12

11:15 am-9:39 pm

1 stop19h 24m

$577

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 11/4

10:50 am-8:55 am

1 stop13h 05m

Brussels Bruxelles-National

Wed 11/11

11:55 am-8:56 pm

1 stop18h 01m

$577

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Tue 10/20

11:59 pm-7:40 am

1 stop22h 41m

Brussels Bruxelles-National

Fri 11/13

12:55 pm-11:57 pm

1 stop20h 02m

$607

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Tue 10/20

6:00 am-7:40 am

1 stop16h 40m

Brussels Bruxelles-National

Wed 11/11

12:55 pm-11:57 pm

1 stop20h 02m

$607

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Belgium

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Belgium?

In general, February is the cheapest month to fly from State of Washington to Belgium. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $510. If you are unable to visit Belgium during the month of February, then departing from State of Washington during the month January is also very affordable. Most momondo users find prices during this month for around $510.

How far in advance should I book a flight from Washington to Belgium?

You are more likely to see cheaper flights to Belgium from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around $761 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from State of Washington for as low as $568 on momondo.

Can stopping save me money on State of Washington to Belgium flights?

You could potentially save up to 34% on your flight if you consider stops on a State of Washington to Belgium flight.

Cheap State of Washington to Belgium flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Belgium

Best Price Found	$197
Fastest flight time	12h 10m
Direct flights	None

The best one-way flight to Belgium from State of Washington in the past 72 hours is $197. The best round-trip flight deal from State of Washington to Belgium found on momondo in the last 72 hours is $458.

The fastest flight from State of Washington to Belgium takes 12h 10m

There are no direct flights from State of Washington to Belgium. There are no popular flight routes from State of Washington to Belgium.

Search flight deals

Frequently asked questions about flying from Washington to Belgium

When did momondo last update prices for flights from Washington to Belgium?
Prices for flights from Washington to Belgium are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Belgium?
The number of operators available for flights from Washington to Belgium is 6 as of September 2026.
How old do you have to be to fly from Washington to Belgium?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Belgium.
What documentation or ID do you need to fly to Belgium?
The necessary travel and health documents for your Belgium trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Belgium

Compare and see reviews for airlines that fly from State of Washington to Belgium with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $381	Free Cancellation	Rating 6.9 753 reviews	Search Icelandair flights
British Airways	PriceFrom $406	Free Cancellation	Rating 6.7 8,237 reviews	Search British Airways flights
KLM	PriceFrom $481	Free Cancellation	Rating 7.8 1,578 reviews	Search KLM flights
Lufthansa	PriceFrom $496	Free Cancellation	Rating 6.8 8,240 reviews	Search Lufthansa flights
Delta	PriceFrom $509	Free Cancellation	Rating 7.8 8,610 reviews	Search Delta flights
United Airlines	PriceFrom $522	Free Cancellation	Rating 7.4 10,244 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Belgium?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Belgium. momondo saves you time and could save you money on your trip.

Can I find flights from Washington to Belgium with flexible booking policies on momondo?

momondo does allow users to show only those flights to Belgium from Washington which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington to Belgium?

Once all potential Washington to Belgium flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington to Belgium right now. Can momondo alert me if prices change?

Price alerts on flights to Belgium from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Belgium trip

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Popular cities in Belgium

Flights to Brusselsfrom $391

Flights to Ostend

Cheap flights from Washington to Belgium from $197

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Belgium departing on 10/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Washington to Belgium

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

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Filter for what you want

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Icelandair flights from State of Washington to Belgium

Our best Icelandair deals on State of Washington to Belgium flight tickets

British Airways flights from State of Washington to Belgium

Our best British Airways deals on State of Washington to Belgium flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Belgium that are best for you.

See travel insights to Belgium from

How to get the cheapest flight ticket from State of Washington to Belgium

What is the cheapest month to fly to Belgium?

How far in advance should I book a flight from Washington to Belgium?

Can stopping save me money on State of Washington to Belgium flights?

What is the cheapest airline that flies from Washington to Belgium?

What airlines fly to Belgium?

Cheap State of Washington to Belgium flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington to Belgium

Best airlines flying from State of Washington to Belgium

Compare and see reviews for airlines that fly from State of Washington to Belgium with momondo

Why use momondo?

An easier way to manage your Belgium trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Belgium

Popular cities in Belgium

Popular flights according to clicks in the last 7 days on momondo

State of Washington flight routes

According to popular flight searches on momondo this year

Belgium flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Belgium

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Belgium

List of cabin classes available on flights landing in Belgium. Availability may vary depending on flight origin and airline.

Complete your trip to Belgium

Explore popular destinations other users love

According to popular flight searches on momondo this year