Cheapest one-way flights from Seattle to Barcelona in June from 340€

AirHint found the following cheapest one-way flights from Seattle (SEA) to Barcelona (BCN) in June 2026 (see full year).

One-Way flights

23 Jun Icelandair
15 Jun Icelandair
20 Jun Icelandair
22 Jun Aer Lingus
16 Jun Icelandair
21 Jun Icelandair
23 Jun Air France direct
16 Jun Air France direct
20 Jun Air France direct

Also check the deals for return flights from Seattle to Barcelona in June.

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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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