Cheapest return flights from Seattle to Barcelona in April from $621

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

Return flights

13 Apr - 28 Apr Icelandair
22 Apr - 30 Apr Turkish Airlines
01 Apr - 30 Apr Turkish Airlines
25 Apr - 30 Apr Icelandair
27 Apr - 23 May Scandinavian Airlines
01 Apr - 25 Apr Icelandair
25 Apr - 02 May Icelandair
01 Apr - 08 Apr Turkish Airlines
10 Apr - 18 Apr Icelandair
28 Apr - 05 May Iberia
29 Apr - 06 May Iberia
30 Apr - 07 May Iberia
26 Apr - 03 May Iberia
24 Apr - 01 May Iberia

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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