Cheapest return flights from Seattle to Brussels in June from $460

Best time to book flights for Seattle (SEA) to Brussels (BRU) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Brussels (BRU) in June 2025 (see full year).

Return flights

04 Jun - 11 Jun Scandinavian Airlines
09 Jun - 20 Jun Icelandair
11 Jun - 29 Jul British Airways
16 Jun - 17 Jul United
18 Jun - 21 Jul British Airways
16 Jun - 16 Jul Finnair
17 Jun - 16 Jul Air France
24 Jun - 29 Jun Air Canada

Also check the deals for one-way flights from Seattle to Brussels in June.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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