Cheap flights from Seattle to Belgian Ardennes

View AU$431 flight on Thu, 31 Jul. 2025Opens in a new window

Popular airlines from Seattle to Belgian Ardennes

  • American Airlines

    American Airlines

  • British Airways

    British Airways

  • Delta

    Delta

  • Aer Lingus

    Aer Lingus

  • KLM

    KLM

  • Lufthansa

    Lufthansa

  • Brussels Airlines

    Brussels Airlines

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Cheap Flights from Seattle (SEA) to Belgian Ardennes (BRU)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 25 Feb. - Mon, 2 Mar.
SEA
Seattle
BRU
Brussels
AU$816 Return, found 1 day ago
AU$816
Return
found 1 day ago
Select Delta flight, departing Wed, 25 Feb. from Seattle to Brussels, returning Mon, 2 Mar., priced at AU$816 found 1 day ago
Delta
Wed, 25 Feb. - Mon, 2 Mar.
SEA
Seattle
BRU
Brussels
AU$825 Return, found 1 day ago
AU$825
Return
found 1 day ago
Select Delta flight, departing Wed, 25 Feb. from Seattle to Brussels, returning Mon, 2 Mar., priced at AU$825 found 1 day ago
KLM
Wed, 25 Feb. - Mon, 2 Mar.
SEA
Seattle
BRU
Brussels
AU$896 Return, found 1 day ago
AU$896
Return
found 1 day ago
Select KLM flight, departing Wed, 25 Feb. from Seattle to Brussels, returning Mon, 2 Mar., priced at AU$896 found 1 day ago
Air France
Wed, 25 Feb. - Mon, 2 Mar.
SEA
Seattle
ZYR
Brussels
AU$900 Return, found 1 day ago
AU$900
Return
found 1 day ago
Select Air France flight, departing Wed, 25 Feb. from Seattle to Brussels, returning Mon, 2 Mar., priced at AU$900 found 1 day ago
United
Wed, 25 Feb. - Mon, 2 Mar.
SEA
Seattle
BRU
Brussels
AU$996 Return, found 1 day ago
AU$996
Return
found 1 day ago
Select United flight, departing Wed, 25 Feb. from Seattle to Brussels, returning Mon, 2 Mar., priced at AU$996 found 1 day ago
Aer Lingus
Wed, 25 Feb. - Mon, 2 Mar.
SEA
Seattle
BRU
Brussels
AU$996 Return, found 1 day ago
AU$996
Return
found 1 day ago
Select Aer Lingus flight, departing Wed, 25 Feb. from Seattle to Brussels, returning Mon, 2 Mar., priced at AU$996 found 1 day ago

Find the cheapest month to fly from Seattle (SEA) to Brussels (BRU)

February is typically the cheapest month to fly

From AU$633 - AU$1,807 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.