Find flights
When to book
FAQs

Cheap flights from Brussels Bruxelles-National Airport to Seattle from £400

BRU — SEA
24 Oct — 31 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Bruxelles-National to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Bruxelles-National to Seattle

Tue 3/1112:50 -
1 stop13h 10m
Sat 9/114:35 -
1 stop12h 20m
Deal found 24/9£620
Thu 15/1013:50 -
1 stop15h 50m
Sun 18/1015:40 -
1 stop12h 15m
Deal found 22/9£623
Tue 3/1112:50 -
1 stop13h 10m
Mon 11/114:35 -
1 stop12h 20m
Deal found 20/9£624
Mon 26/1017:35 -
1 stop26h 50m
Mon 2/1110:43 -
2 stops18h 12m
Deal found 21/9£625
Thu 19/1110:10 -
2 stops23h 32m
Wed 2/1218:45 -
1 stop12h 35m
Deal found 24/9£626
Wed 11/1112:00 -
2 stops21h 35m
Wed 13/114:17 -
2 stops17h 03m
Deal found 24/9£626
Sat 7/1109:40 -
2 stops20h 40m
Sat 14/1106:14 -
2 stops19h 16m
Deal found 23/9£628
Sat 21/1111:45 -
2 stops21h 02m
Fri 27/1106:09 -
2 stops19h 41m
Deal found 22/9£629
Thu 5/1110:10 -
2 stops23h 25m
Tue 12/114:17 -
2 stops17h 48m
Deal found 20/9£631
Sun 8/1107:00 -
1 stop14h 00m
Wed 13/107:00 -
1 stop16h 55m
Deal found 24/9£638
Wed 4/1112:00 -
1 stop13h 50m
Thu 14/118:45 -
1 stop16h 25m
Deal found 24/9£639

Find flight deals from Bruxelles-National to Seattle

Round-trip from

£620

One-way from

£400

Popular in

December

Cheapest in

May

Average price

£672
Icelandair
  • Icelandair
  • 10/11-11/1
  • 2 total stops
  • 25h 30m total
  • Brussels to Seattle
Search Deals
British Airways
  • British Airways
  • 9/11-31/12
  • 1 total stop
  • 26h 50m total
  • Brussels to Seattle
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (£283 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease (£73 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Brussels Bruxelles-National Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Mon 9/11

17:35-11:25

1 stop26h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£400

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Thu 7/1

06:15-22:05

2 stops24h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£447

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Thu 1/10

18:55-23:20

2 stops37h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£595

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Thu 15/10

13:50-20:40

1 stop15h 50m

Seattle/Tacoma Intl

Sun 18/10

15:40-12:55

1 stop12h 15m

£620

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Sat 7/11

09:40-21:20

2 stops20h 40m

Seattle/Tacoma Intl

Sat 14/11

06:14-10:30

2 stops19h 16m

£628

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Sun 8/11

07:00-12:00

1 stop14h 00m

Seattle/Tacoma Intl

Wed 13/1

07:00-08:55

1 stop16h 55m

£638

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Mon 16/11

07:00-12:00

1 stop14h 00m

Seattle/Tacoma Intl

Wed 2/12

10:48-08:55

1 stop13h 07m

£640

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Thu 15/10

06:20-12:20

1 stop15h 00m

Seattle/Tacoma Intl

Sun 18/10

08:30-13:15

2 stops19h 45m

£640

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Sun 18/10

06:20-12:20

1 stop15h 00m

Seattle/Tacoma Intl

Sun 25/10

05:05-13:15

2 stops24h 10m

£641

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Sat 7/11

07:00-12:00

1 stop14h 00m

Seattle/Tacoma Intl

Sun 10/1

08:00-07:15

1 stop14h 15m

£641

Flights are sorted by cheapest return flights first.

Deals found on 20/9

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Bruxelles-National to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Bruxelles-National with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Brussels Bruxelles-National Airport to Seattle

How far ahead should I book a flight from Brussels Bruxelles-National Airport to Seattle?

The best time to book flights from Brussels Bruxelles-National Airport to Seattle is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Brussels Bruxelles-National Airport to Seattle?

Currently, May is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Seattle (average of £648). Flying from Brussels Bruxelles-National Airport to Seattle in December is currently the most expensive (average of £1,882). 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.

How much does it cost for a return flight from Brussels Bruxelles-National Airport to Seattle?

Airfare is below average for this route at the moment.

Brussels Bruxelles-National Airport to Seattle flights typically cost between £644 and £732 in November.
The cheapest return price found within the last 5 days was £620 on Icelandair (3 Nov–9 Jan).

Related info for your journey

  • What airport do you fly into for flights to Seattle from Brussels Bruxelles-National?

    If you book a flight to Seattle from Brussels Bruxelles-National, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 0 flights from Brussels Bruxelles-National to Seattle/Tacoma Intl per day from 0 different airlines.

  • How long is the flight from Brussels Bruxelles-National Airport to Seattle?

    For as low as £640, United Airlines can have you in Seattle from Brussels Bruxelles-National Airport in 14h. There are 4941 mi between Brussels Bruxelles-National Airport and Seattle.

  • Can I find deals for flights from Bruxelles-National to Seattle that include hotel bookings?

    Yes. In addition to deals on Bruxelles-National to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Bruxelles-National to Seattle?

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

  • Can I find deals for business class flights from Bruxelles-National to Seattle?

    Yes. Cheapflights offers flight deals from Bruxelles-National to Seattle 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 Brussels Bruxelles-National Airport to Seattle?

    Currently, May is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Seattle (average of £648). Flying from Brussels Bruxelles-National Airport to Seattle in December is currently the most expensive (average of £1,882). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Federal Way
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights from Bruxelles-National to Seattle?

Cheapflights makes it easy to find Bruxelles-National to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Bruxelles-National to Seattle?

Cheapflights helps you find that perfect flight to Seattle from Bruxelles-National by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Bruxelles-National to Seattle with no change fees?

Yes! Cheapflights helps users easily find flights from Bruxelles-National to Seattle with no change fees.

Can Cheapflights notify me if prices for flights from Bruxelles-National to Seattle become cheaper?

Yes, Cheapflights offers price alerts on Bruxelles-National to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.