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Cheap flights from Washington to Brussels from $232

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 Brussels departing on 7/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Brussels

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
3:40 pm - 12:55 pm
SEA
-
BRU
12h 15m
1 stop
Icelandair Logo
1:50 pm - 11:45 am
BRU
-
SEA
30h 55m
1 stop
$561Icelandair
Mon, Aug 3 - Wed, Aug 19
Icelandair Logo
3:40 pm - 12:55 pm
SEA
-
BRU
12h 15m
1 stop
Icelandair Logo
12:50 pm - 6:00 pm
BRU
-
SEA
13h 10m
1 stop
$565Icelandair
Sun, Oct 18 - Thu, Oct 29
Icelandair Logo
11:25 pm - 12:55 pm
SEA
-
BRU
28h 30m
1 stop
Icelandair Logo
1:50 pm - 8:40 pm
BRU
-
SEA
15h 50m
1 stop
$566Icelandair
Mon, Aug 17 - Mon, Aug 31
Multiple Airlines Logo
3:40 pm - 10:55 pm
SEA
-
CRL
22h 15m
3 stops
Multiple Airlines Logo
9:15 pm - 9:07 pm
CRL
-
SEA
32h 52m
3 stops
$666Multiple Airlines
Sun, Aug 23 - Mon, Aug 31
United Airlines Logo
11:17 pm - 1:15 pm
PDX
-
BRU
28h 58m
2 stops
United Airlines Logo
11:10 am - 10:03 pm
BRU
-
PDX
19h 53m
1 stop
$736United Airlines
Thu, Sep 17 - Sun, Sep 20
Multiple Airlines Logo
3:40 pm - 10:55 pm
SEA
-
CRL
22h 15m
2 stops
Multiple Airlines Logo
9:15 pm - 9:07 pm
CRL
-
SEA
32h 52m
3 stops
$742Multiple Airlines
Sun, Aug 23 - Mon, Aug 31
Air Canada Logo
10:00 am - 8:00 pm
PDX
-
BRU
25h 00m
2 stops
Air Canada Logo
10:00 am - 8:46 pm
BRU
-
PDX
19h 46m
2 stops
$757Air Canada
Sun, Nov 8 - Thu, Nov 12
United Airlines Logo
1:15 pm - 1:15 pm
PDX
-
BRU
15h 00m
2 stops
United Airlines Logo
11:55 am - 8:28 pm
BRU
-
PDX
17h 33m
1 stop
$768United Airlines
Sun, Nov 8 - Thu, Nov 12
SWISS Logo
1:03 pm - 9:30 pm
PDX
-
BRU
23h 27m
2 stops
SWISS Logo
6:55 am - 7:06 pm
BRU
-
PDX
21h 11m
2 stops
$771SWISS
Wed, Sep 30 - Wed, Oct 21
Air Canada Logo
10:10 am - 2:15 pm
PDX
-
BRU
19h 05m
2 stops
Air Canada Logo
9:10 am - 6:51 pm
BRU
-
PDX
42h 41m
2 stops
$790Air Canada
Wed, Sep 30 - Wed, Oct 21

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Icelandair flights from State of Washington to Brussels

Our best Icelandair deals on State of Washington to Brussels flight tickets
Icelandair
Aug 3
SEA3:40 pmSeattle/Tacoma Intl
12h 15m
1 stop
BRU12:55 pmBrussels Bruxelles-National
Aug 19
BRU1:50 pmBrussels Bruxelles-National
30h 55m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$561
Icelandair
Oct 18
SEA3:40 pmSeattle/Tacoma Intl
12h 15m
1 stop
BRU12:55 pmBrussels Bruxelles-National
Oct 29
BRU12:50 pmBrussels Bruxelles-National
13h 10m
1 stop
SEA6:00 pmSeattle/Tacoma Intl
$565
Icelandair
Aug 17
SEA11:25 pmSeattle/Tacoma Intl
28h 30m
1 stop
BRU12:55 pmBrussels Bruxelles-National
Aug 31
BRU1:50 pmBrussels Bruxelles-National
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$566

United Airlines flights from State of Washington to Brussels

Our best United Airlines deals on State of Washington to Brussels flight tickets
United Airlines
Nov 18
SEA7:45 amSeattle/Tacoma Intl
20h 30m
2 stops
BRU1:15 pmBrussels Bruxelles-National
Nov 24
BRU10:10 amBrussels Bruxelles-National
17h 38m
1 stop
SEA6:48 pmSeattle/Tacoma Intl
$720
United Airlines
Nov 15
SEA7:00 amSeattle/Tacoma Intl
16h 55m
1 stop
BRU8:55 amBrussels Bruxelles-National
Nov 22
BRU10:10 amBrussels Bruxelles-National
21h 43m
1 stop
SEA10:53 pmSeattle/Tacoma Intl
$723
United Airlines
Nov 19
SEA10:52 amSeattle/Tacoma Intl
13h 03m
1 stop
BRU8:55 amBrussels Bruxelles-National
Nov 22
BRU10:10 amBrussels Bruxelles-National
17h 38m
1 stop
SEA6:48 pmSeattle/Tacoma Intl
$728

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Brussels 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, momondo users made 832,500 searches. Data last updated June 26, 2026.
Use the filters below to find and compare flights from Washington to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Mon 8/3

3:40 pm-12:55 pm

1 stop12h 15m

Brussels Bruxelles-National

Wed 8/19

1:50 pm-11:45 am

1 stop30h 55m

$561
Quickest round-trip

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Sun 10/18

3:40 pm-12:55 pm

1 stop12h 15m

Brussels Bruxelles-National

Thu 10/29

12:50 pm-6:00 pm

1 stop13h 10m

$565

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Mon 8/17

11:25 pm-12:55 pm

1 stop28h 30m

Brussels Bruxelles-National

Mon 8/31

1:50 pm-8:40 pm

1 stop15h 50m

$566

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Sun 8/23

3:40 pm-10:55 pm

3 stops22h 15m

Charleroi Brussels

Mon 8/31

9:15 pm-9:07 pm

3 stops32h 52m

$666

PortlandBrussels

PDX - BRU

PDXBRU

Portland

Thu 9/17

11:17 pm-1:15 pm

2 stops28h 58m

Brussels Bruxelles-National

Sun 9/20

11:10 am-10:03 pm

1 stop19h 53m

$736

SeattleBrussels

SEA - CRL

SEACRL

Seattle/Tacoma Intl

Sun 8/23

3:40 pm-10:55 pm

2 stops22h 15m

Charleroi Brussels

Mon 8/31

9:15 pm-9:07 pm

3 stops32h 52m

$742

PortlandBrussels

PDX - BRU

PDXBRU

Portland

Sun 11/8

10:00 am-8:00 pm

2 stops25h 00m

Brussels Bruxelles-National

Thu 11/12

10:00 am-8:46 pm

2 stops19h 46m

$757

PortlandBrussels

PDX - BRU

PDXBRU

Portland

Sun 11/8

1:15 pm-1:15 pm

2 stops15h 00m

Brussels Bruxelles-National

Thu 11/12

11:55 am-8:28 pm

1 stop17h 33m

$768

PortlandBrussels

PDX - BRU

PDXBRU

Portland

Wed 9/30

1:03 pm-9:30 pm

2 stops23h 27m

Brussels Bruxelles-National

Wed 10/21

6:55 am-7:06 pm

2 stops21h 11m

$771

PortlandBrussels

PDX - BRU

PDXBRU

Portland

Wed 9/30

10:10 am-2:15 pm

2 stops19h 05m

Brussels Bruxelles-National

Wed 10/21

9:10 am-6:51 pm

2 stops42h 41m

$790

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Brussels from

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

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

What is the cheapest month to fly to Brussels?

In general, January is the cheapest month to fly from State of Washington to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $375. If you are unable to visit Brussels during the month of January, then departing from State of Washington during the month April is also very affordable. Most momondo users find prices during this month for around $380.

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

You are more likely to see cheaper flights to Brussels from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around $658 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from State of Washington for as low as $503 on momondo.

Cheap State of Washington to Brussels flight deals and tips

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

Fastest flight time

12h 15m

Direct flights

None
The fastest flight from State of Washington to Brussels takes 12h 15m
There are no direct flights from State of Washington to Brussels. There are no popular flight routes from State of Washington to Brussels.
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Frequently asked questions about flying from Washington to Brussels

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

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

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

  • How old do you have to be to fly from Washington to Brussels?

    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 Brussels.

  • What documentation or ID do you need to fly to Brussels?

    The travel and health documents you'll need for your trip to Brussels may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Brussels. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Brussels

Compare and see reviews for airlines that fly from State of Washington to Brussels with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $383Free CancellationRating
7.0
690 reviews
Search Icelandair flights
British AirwaysPriceFrom $421Free CancellationRating
6.7
8,071 reviews
Search British Airways flights
United AirlinesPriceFrom $470Free CancellationRating
7.4
9,893 reviews
Search United Airlines flights
KLMPriceFrom $481Free CancellationRating
7.8
1,531 reviews
Search KLM flights
DeltaPriceFrom $482Free CancellationRating
7.8
8,453 reviews
Search Delta flights
LufthansaPriceFrom $494Free CancellationRating
6.8
8,096 reviews
Search Lufthansa flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Brussels from Washington.

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

Yes. All flights to Brussels from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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

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

If you are not ready to book a flight from Washington to Brussels now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Brussels and let you know when they change.

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Find better results for your trip to Belgium

Fly into one of these airports located in Brussels

Airports listed have a maximum distance of 27.4 mi from Brussels
Brussels Bruxelles-National Airport
Charleroi Brussels Airport