Cheapest return flights from Seattle to Barcelona in April from 336€

AirHint found the following cheapest return flights from Seattle (SEA) to Barcelona (BCN) in April 2026 (see full year).

Return flights

14 Apr - 23 Apr Icelandair
14 Apr - 25 Apr Icelandair
14 Apr - 24 Apr Icelandair
15 Apr - 25 Apr Icelandair
13 Apr - 22 Apr Icelandair
13 Apr - 23 Apr Icelandair
13 Apr - 24 Apr Icelandair
13 Apr - 20 Apr Icelandair
08 Apr - 22 Apr Lufthansa
16 Apr - 30 Apr United

Also check the deals for one-way flights from Seattle to Barcelona in April.

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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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