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

British Airways and Scandinavian Airlines are the most popular carriers operating from Washington to Belgium

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 39% of people opting to fly with this airline when traveling to Belgium. Keep in mind that there are 7 different airlines that fly to Belgium on a routine basis, so you have a few additional options to choose from.

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 7 as of November 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.

$453 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

$577Icelandair

Mon, Nov 23 - Tue, Dec 8

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

$578Icelandair

Mon, Nov 23 - Tue, Dec 8

11:00 am - 2:15 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

18h 15m2 stops Chicago O'Hare Intl Zurich

9:40 am - 5:05 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

16h 25m2 stops Zurich Munich Franz Josef Strauss

$725SWISS

Tue, Apr 20 - Fri, Apr 30

8:00 am - 7:25 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

14h 25m1 stop Washington, D.C. Dulles Intl

7:00 am - 2:15 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

16h 15m2 stops Frankfurt am Main Vancouver Intl

$731Multiple Airlines

Tue, May 4 - Wed, May 12

3:15 pm - 3:55 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

15h 40m2 stops Vancouver Intl Munich Franz Josef Strauss

7:00 am - 12:20 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

14h 20m1 stop Frankfurt am Main

$736Lufthansa

Tue, Apr 20 - Fri, Apr 30

5:00 am - 7:15 amGEG Spokane-BRU Brussels Bruxelles-National

41h 15m2 stops Denver Intl Washington, D.C. Dulles Intl

9:30 am - 10:55 amBRU Brussels Bruxelles-National-GEG Spokane

58h 25m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$748United Airlines

Sun, Apr 25 - Wed, Apr 28

4:00 pm - 7:45 amGEG Spokane-BRU Brussels Bruxelles-National

30h 45m2 stops Denver Intl Newark

9:30 am - 10:55 amBRU Brussels Bruxelles-National-GEG Spokane

58h 25m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$748United Airlines

Sun, Apr 25 - Wed, Apr 28

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

16h 40m1 stop Atlanta Hartsfield-Jackson

10:25 am - 11:33 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

34h 08m1 stop Amsterdam Schiphol

$793Delta

Wed, Mar 31 - Mon, Apr 12

10:55 pm - 7:40 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

23h 45m1 stop Atlanta Hartsfield-Jackson

3:10 pm - 4:20 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

34h 10m1 stop Amsterdam Schiphol

$793Delta

Tue, Mar 30 - Mon, Apr 12

2:10 pm - 2:20 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

15h 10m1 stop Frankfurt am Main

10:55 am - 5:05 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

15h 10m1 stop Munich Franz Josef Strauss

$795Lufthansa

Fri, Apr 16 - Fri, Apr 23

Cheap last minute flights

Enter your travel dates to find the best prices.

3:15 pm - 8:10 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

19h 55m2 stops Vancouver Intl London Heathrow

7:00 am - 12:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

14h 00m1 stop Frankfurt am Main

$874Multiple Airlines

Thu, Nov 12 - Thu, Nov 19

2:50 pm - 10:40 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

22h 50m1 stop Munich Franz Josef Strauss

8:25 am - 2:37 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

15h 12m2 stops Frankfurt am Main Vancouver Intl

$878Lufthansa

Fri, Nov 13 - Fri, Nov 20

2:50 pm - 10:40 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

22h 50m1 stop Munich Franz Josef Strauss

6:45 am - 1:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

15h 15m1 stop Munich Franz Josef Strauss

$880Lufthansa

Fri, Nov 13 - Fri, Nov 20

1:50 pm - 5:30 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

18h 40m1 stop Frankfurt am Main

7:00 am - 12:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

14h 00m1 stop Frankfurt am Main

$888Lufthansa

Thu, Nov 12 - Thu, Nov 19

7:45 am - 1:15 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

20h 30m2 stops Toronto Pearson Intl London Heathrow

7:00 am - 2:37 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

16h 37m2 stops Frankfurt am Main Vancouver Intl

$889Multiple Airlines

Fri, Nov 13 - Fri, Nov 20

10:10 am - 8:10 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

25h 00m2 stops Vancouver Intl London Heathrow

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

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

$895Air Canada

Thu, Nov 12 - Thu, Nov 19

7:45 am - 7:50 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

27h 05m3 stops Toronto Pearson Intl Munich Franz Josef Strauss Kastrup Copenhagen

3:10 pm - 12:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

29h 50m2 stops Kastrup Copenhagen Frankfurt am Main

$1,169Multiple Airlines

Fri, Nov 13 - Fri, Nov 20

2:35 pm - 8:15 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

20h 40m3 stops Reykjavik Keflavik Intl London Heathrow Frankfurt am Main

5:45 pm - 5:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

32h 15m3 stops Vienna Intl London Heathrow Reykjavik Keflavik Intl

$1,509Multiple Airlines

Fri, Nov 13 - Fri, Nov 20

10:10 am - 8:10 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

25h 00m2 stops Vancouver Intl London Heathrow

7:30 pm - 5:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

30h 30m3 stops Frankfurt am Main Kastrup Copenhagen Reykjavik Keflavik Intl

$1,532Multiple Airlines

Thu, Nov 12 - Thu, Nov 19

6:30 am - 4:10 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

24h 40m3 stops Newark Lisbon Humberto Delgado Porto

10:15 am - 9:39 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

44h 24m3 stops Porto Lisbon Humberto Delgado Newark

$2,752TAP AIR PORTUGAL

Thu, Nov 12 - Thu, Nov 19

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British Airways flights from State of Washington to Belgium

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

British Airways

Dec 7

SEA6:45 pmSeattle/Tacoma Intl

17h 10m

1 stop

BRU8:55 pmBrussels Bruxelles-National

Dec 14

BRU9:15 pmBrussels Bruxelles-National

23h 10m

1 stop

SEA11:25 amSeattle/Tacoma Intl

$803

British Airways

Apr 5

SEA1:35 pmSeattle/Tacoma Intl

15h 50m

1 stop

BRU2:25 pmBrussels Bruxelles-National

Apr 12

BRU8:50 pmBrussels Bruxelles-National

23h 45m

1 stop

SEA11:35 amSeattle/Tacoma Intl

$808

British Airways

Apr 5

SEA8:20 pmSeattle/Tacoma Intl

28h 35m

1 stop

BRU9:55 amBrussels Bruxelles-National

Apr 12

BRU8:50 pmBrussels Bruxelles-National

30h 35m

1 stop

SEA6:25 pmSeattle/Tacoma Intl

$809

Air Canada flights from State of Washington to Belgium

Our best Air Canada deals on State of Washington to Belgium flight tickets

Air Canada

Apr 25

SEA7:05 pmSeattle/Tacoma Intl

39h 55m

2 stops

BRU8:00 pmBrussels Bruxelles-National

Apr 28

BRU9:30 amBrussels Bruxelles-National

41h 53m

2 stops

SEA6:23 pmSeattle/Tacoma Intl

$745

Air Canada

Apr 25

SEA3:15 pmSeattle/Tacoma Intl

19h 45m

2 stops

BRU8:00 pmBrussels Bruxelles-National

Apr 28

BRU9:30 amBrussels Bruxelles-National

45h 28m

2 stops

SEA9:58 pmSeattle/Tacoma Intl

$746

Air Canada

Apr 5

SEA7:05 pmSeattle/Tacoma Intl

39h 55m

2 stops

BRU8:00 pmBrussels Bruxelles-National

Apr 12

BRU9:20 pmBrussels Bruxelles-National

33h 38m

2 stops

SEA9:58 pmSeattle/Tacoma Intl

$766

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

Mon 11/23

2:35 pm-11:55 am

1 stop12h 20m

Brussels Bruxelles-National

Tue 12/8

12:50 pm-5:00 pm

1 stop13h 10m

$577

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Mon 11/23

2:35 pm-11:55 am

1 stop12h 20m

Brussels Bruxelles-National

Tue 12/8

12:50 pm-5:00 pm

1 stop13h 10m

$578

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Tue 4/20

11:00 am-2:15 pm

2 stops18h 15m

Brussels Bruxelles-National

Fri 4/30

9:40 am-5:05 pm

2 stops16h 25m

$725

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Tue 5/4

8:00 am-7:25 am

1 stop14h 25m

Brussels Bruxelles-National

Wed 5/12

7:00 am-2:15 pm

2 stops16h 15m

$731

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Tue 4/20

3:15 pm-3:55 pm

2 stops15h 40m

Brussels Bruxelles-National

Fri 4/30

7:00 am-12:20 pm

1 stop14h 20m

$736

SpokaneBrussels

GEG Spokane - BRU Brussels Bruxelles-National

GEGBRU

Spokane

Sun 4/25

5:00 am-7:15 am

2 stops41h 15m

Brussels Bruxelles-National

Wed 4/28

9:30 am-10:55 am

2 stops58h 25m

$748

SpokaneBrussels

GEG Spokane - BRU Brussels Bruxelles-National

GEGBRU

Spokane

Sun 4/25

4:00 pm-7:45 am

2 stops30h 45m

Brussels Bruxelles-National

Wed 4/28

9:30 am-10:55 am

2 stops58h 25m

$748

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 3/31

6:00 am-7:40 am

1 stop16h 40m

Brussels Bruxelles-National

Mon 4/12

10:25 am-11:33 am

1 stop34h 08m

$793

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Tue 3/30

10:55 pm-7:40 am

1 stop23h 45m

Brussels Bruxelles-National

Mon 4/12

3:10 pm-4:20 pm

1 stop34h 10m

$793

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Fri 4/16

2:10 pm-2:20 pm

1 stop15h 10m

Brussels Bruxelles-National

Fri 4/23

10:55 am-5:05 pm

1 stop15h 10m

$795

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 April is also very affordable. Most momondo users find prices during this month for around $579.

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 $800 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 $584 on momondo.

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

You could potentially save up to 3% 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	$453
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 $453. The best round-trip flight deal from State of Washington to Belgium found on momondo in the last 72 hours is $577.

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 7 as of November 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 $412	Free Cancellation	Rating 6.9 767 reviews	Search Icelandair flights
British Airways	PriceFrom $421	Free Cancellation	Rating 6.7 8,286 reviews	Search British Airways flights
KLM	PriceFrom $481	Free Cancellation	Rating 7.8 1,595 reviews	Search KLM flights
Lufthansa	PriceFrom $496	Free Cancellation	Rating 6.8 8,292 reviews	Search Lufthansa flights
Delta	PriceFrom $509	Free Cancellation	Rating 7.8 8,699 reviews	Search Delta flights
United Airlines	PriceFrom $543	Free Cancellation	Rating 7.3 10,471 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $638	Free Cancellation	Rating 7.4 4,467 reviews	Search Turkish 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.

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Popular cities in Belgium

Flights to Brusselsfrom $482

Cheap flights from Washington to Belgium from $453

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 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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British Airways flights from State of Washington to Belgium

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

Air Canada flights from State of Washington to Belgium

Our best Air Canada deals on State of Washington to Belgium flight tickets

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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