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

British Airways is the most popular carrier operating from Belgium to Washington

What airlines fly to State of Washington?

KLM, Lufthansa and Icelandair are the top three most popular airlines that fly to State of Washington from Belgium according to our data. KLM is the first choice among our users, with 27% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 4 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Belgium to Washington are updated daily.

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

As of October 2026, there are 4 operators available to choose from for flights from Belgium to Washington.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belgium to Washington.

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

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$503 Cheap Flights from Belgium to Washington in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Belgium to Washington

Round-trip

One-way

Last minute

Recent round-trip flight deals from Belgium to Washington

Enter your travel dates to find the best prices.

7:00 am - 3:55 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

17h 55m1 stop Frankfurt am Main

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

14h 40m1 stop Frankfurt am Main

$650Multiple Airlines

Thu, Jan 21 - Thu, Feb 4

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

13h 10m1 stop Reykjavik Keflavik Intl

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

12h 20m1 stop Reykjavik Keflavik Intl

$708Icelandair

Thu, Nov 12 - Sat, Nov 28

10:30 am - 3:55 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

14h 25m1 stop Frankfurt am Main

5:45 pm - 5:20 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

14h 35m1 stop Frankfurt am Main

$712Multiple Airlines

Mon, Mar 8 - Wed, Apr 7

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

13h 10m1 stop Reykjavik Keflavik Intl

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

12h 20m1 stop Reykjavik Keflavik Intl

$714Icelandair

Thu, Nov 12 - Sat, Nov 28

10:20 am - 10:05 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

20h 45m2 stops Kastrup Copenhagen Los Angeles

3:55 pm - 7:50 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

18h 55m1 stop Kastrup Copenhagen

$808Scandinavian Airlines

Fri, Apr 30 - Fri, May 14

7:15 pm - 10:21 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

36h 06m2 stops Kastrup Copenhagen New York John F Kennedy Intl

7:20 am - 9:40 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 20m2 stops Boston Logan Intl Kastrup Copenhagen

$827Scandinavian Airlines

Thu, Jan 21 - Thu, Feb 4

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

14h 00m1 stop Frankfurt am Main

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

16h 55m1 stop Chicago O'Hare Intl

$1,142Lufthansa

Mon, Dec 14 - Mon, Dec 21

8:25 am - 9:01 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

21h 36m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

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

16h 55m1 stop Chicago O'Hare Intl

$1,147Lufthansa

Mon, Dec 14 - Mon, Dec 21

6:15 am - 11:50 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

14h 35m1 stop Amsterdam Schiphol

2:25 pm - 2:15 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

14h 50m1 stop Amsterdam Schiphol

$1,159KLM

Sun, Dec 20 - Thu, Jan 7

6:15 am - 11:50 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

14h 35m1 stop Amsterdam Schiphol

2:25 pm - 2:15 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

14h 50m1 stop Amsterdam Schiphol

$1,161KLM

Sun, Dec 20 - Thu, Jan 7

Recent last minute flight deals from Belgium to Washington

Enter your travel dates to find the best prices.

10:20 am - 11:04 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

21h 44m2 stops Kastrup Copenhagen New York John F Kennedy Intl

7:15 am - 9:40 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 25m2 stops New York John F Kennedy Intl Kastrup Copenhagen

$895Scandinavian Airlines

Wed, Nov 4 - Tue, Nov 17

10:20 am - 11:04 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

21h 44m2 stops Kastrup Copenhagen New York John F Kennedy Intl

7:38 am - 9:40 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 02m2 stops Boston Logan Intl Kastrup Copenhagen

$896Scandinavian Airlines

Wed, Nov 4 - Tue, Nov 17

10:20 am - 11:04 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

21h 44m2 stops Kastrup Copenhagen New York John F Kennedy Intl

7:38 am - 9:40 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 02m2 stops Boston Logan Intl Kastrup Copenhagen

$898Scandinavian Airlines

Wed, Nov 4 - Tue, Nov 17

10:20 am - 11:04 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

21h 44m2 stops Kastrup Copenhagen New York John F Kennedy Intl

7:38 am - 9:40 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 02m2 stops Boston Logan Intl Kastrup Copenhagen

$899Scandinavian Airlines

Wed, Nov 4 - Tue, Nov 17

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

23h 50m1 stop London Heathrow

10:43 am - 1:05 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 22m2 stops Chicago O'Hare Intl London Heathrow

$960British Airways

Wed, Nov 4 - Tue, Nov 17

12:00 pm - 4:50 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

13h 50m1 stop London Heathrow

1:30 pm - 1:05 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

14h 35m1 stop London Heathrow

$960British Airways

Wed, Nov 4 - Tue, Nov 17

12:00 pm - 4:50 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

13h 50m1 stop London Heathrow

1:30 pm - 1:05 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

14h 35m1 stop London Heathrow

$965British Airways

Wed, Nov 4 - Tue, Nov 17

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

23h 50m1 stop London Heathrow

10:43 am - 1:05 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 22m2 stops Chicago O'Hare Intl London Heathrow

$965British Airways

Wed, Nov 4 - Tue, Nov 17

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

23h 50m1 stop London Heathrow

10:43 am - 1:05 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 22m2 stops Chicago O'Hare Intl London Heathrow

$1,171British Airways

Wed, Nov 4 - Tue, Nov 17

12:00 pm - 4:50 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

13h 50m1 stop London Heathrow

1:30 pm - 1:05 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

14h 35m1 stop London Heathrow

$1,171British Airways

Wed, Nov 4 - Tue, Nov 17

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Scandinavian Airlines flights from Belgium to State of Washington

Our best Scandinavian Airlines deals on Belgium to State of Washington flight tickets

Scandinavian Airlines

Jan 21

BRU7:15 pmBrussels Bruxelles-National

36h 06m

2 stops

SEA10:21 pmSeattle/Tacoma Intl

Feb 4

SEA7:20 amSeattle/Tacoma Intl

17h 20m

2 stops

BRU9:40 amBrussels Bruxelles-National

$827

Scandinavian Airlines

Dec 20

BRU3:10 pmBrussels Bruxelles-National

40h 02m

2 stops

SEA10:12 pmSeattle/Tacoma Intl

Jan 7

SEA2:40 pmSeattle/Tacoma Intl

38h 50m

2 stops

BRU2:30 pmBrussels Bruxelles-National

$845

Scandinavian Airlines

Nov 23

BRU10:20 amBrussels Bruxelles-National

20h 44m

2 stops

SEA10:04 pmSeattle/Tacoma Intl

Dec 6

SEA10:39 amSeattle/Tacoma Intl

18h 51m

2 stops

BRU2:30 pmBrussels Bruxelles-National

$847

British Airways flights from Belgium to State of Washington

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

British Airways

Nov 30

BRU9:15 pmBrussels Bruxelles-National

23h 10m

1 stop

SEA11:25 amSeattle/Tacoma Intl

Dec 7

SEA6:45 pmSeattle/Tacoma Intl

12h 55m

1 stop

BRU4:40 pmBrussels Bruxelles-National

$837

British Airways

Nov 30

BRU9:15 pmBrussels Bruxelles-National

23h 10m

1 stop

SEA11:25 amSeattle/Tacoma Intl

Dec 7

SEA2:07 pmSeattle/Tacoma Intl

17h 33m

2 stops

BRU4:40 pmBrussels Bruxelles-National

$844

British Airways

Nov 23

BRU9:15 pmBrussels Bruxelles-National

23h 10m

1 stop

SEA11:25 amSeattle/Tacoma Intl

Dec 6

SEA2:07 pmSeattle/Tacoma Intl

17h 33m

2 stops

BRU4:40 pmBrussels Bruxelles-National

$849

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Thu 1/21

7:00 am-3:55 pm

1 stop17h 55m

Seattle/Tacoma Intl

Thu 2/4

5:50 pm-5:30 pm

1 stop14h 40m

$650

Quickest round-trip

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Thu 11/12

12:50 pm-5:00 pm

1 stop13h 10m

Seattle/Tacoma Intl

Sat 11/28

2:35 pm-11:55 am

1 stop12h 20m

$708

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Mon 3/8

10:30 am-3:55 pm

1 stop14h 25m

Seattle/Tacoma Intl

Wed 4/7

5:45 pm-5:20 pm

1 stop14h 35m

$712

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Thu 11/12

12:50 pm-5:00 pm

1 stop13h 10m

Seattle/Tacoma Intl

Sat 11/28

2:35 pm-11:55 am

1 stop12h 20m

$714

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Fri 4/30

10:20 am-10:05 pm

2 stops20h 45m

Seattle/Tacoma Intl

Fri 5/14

3:55 pm-7:50 pm

1 stop18h 55m

$808

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Thu 1/21

7:15 pm-10:21 pm

2 stops36h 06m

Seattle/Tacoma Intl

Thu 2/4

7:20 am-9:40 am

2 stops17h 20m

$827

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Mon 12/14

7:00 am-12:00 pm

1 stop14h 00m

Seattle/Tacoma Intl

Mon 12/21

7:00 am-8:55 am

1 stop16h 55m

$1,142

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Mon 12/14

8:25 am-9:01 pm

2 stops21h 36m

Seattle/Tacoma Intl

Mon 12/21

7:00 am-8:55 am

1 stop16h 55m

$1,147

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Sun 12/20

6:15 am-11:50 am

1 stop14h 35m

Seattle/Tacoma Intl

Thu 1/7

2:25 pm-2:15 pm

1 stop14h 50m

$1,159

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Sun 12/20

6:15 am-11:50 am

1 stop14h 35m

Seattle/Tacoma Intl

Thu 1/7

2:25 pm-2:15 pm

1 stop14h 50m

$1,161

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 Belgium to State of Washington

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 State of Washington?

The month of May is, on average, the cheapest month to fly to State of Washington from Belgium, with most prices found around $860. If you aren’t able to travel to State of Washington during the month of May, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $890.

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

You are more likely to see cheaper flights to State of Washington from Belgium when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $1,035 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Belgium for as low as $797 on momondo.

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

You could potentially save up to 43% on your flight if you consider stops on a Belgium to State of Washington flight.

Cheap Belgium to State of Washington flight deals and tips

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

Best Price Found	$503
Fastest flight time	13h 05m
Direct flights	None

The best one-way flight to State of Washington from Belgium in the past 72 hours is $503. The best round-trip flight deal from Belgium to State of Washington found on momondo in the last 72 hours is $650.

The fastest flight from Belgium to State of Washington takes 13h 05m

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

Search flight deals

Frequently asked questions about flying from Belgium to Washington

When did momondo last update prices for flights from Belgium to Washington?
Prices for flights from Belgium to Washington are updated daily.
How many operators does momondo search for flights from Belgium to Washington?
As of October 2026, there are 4 operators available to choose from for flights from Belgium to Washington.
How old do you have to be to fly from Belgium to Washington?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belgium to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Belgium to State of Washington

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

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $676	Free Cancellation	Rating 7.8 1,595 reviews	Search KLM flights
Scandinavian Airlines	PriceFrom $711	Free Cancellation	Rating 7.4 2,031 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $823	Free Cancellation	Rating 6.8 8,297 reviews	Search Lufthansa flights
Icelandair	PriceFrom $838	Free Cancellation	Rating 6.9 764 reviews	Search Icelandair flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Belgium to Washington for you.

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

All flight searches from Belgium to Washington on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Washington from Belgium. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Washington from Belgium 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.