Cheapest return flights from Seattle to Barcelona in April from 405€

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

Return flights

12 Apr - 18 Apr Icelandair
15 Apr - 23 Apr Aer Lingus
17 Apr - 25 Apr Icelandair
01 Apr - 25 Apr Icelandair
02 Apr - 09 Apr Icelandair
06 Apr - 13 Apr Icelandair
11 Apr - 02 May Icelandair
03 Apr - 10 Apr Turkish Airlines
22 Apr - 29 Apr Icelandair
06 Apr - 02 May Aer Lingus
05 Apr - 12 Apr Turkish Airlines
04 Apr - 11 Apr Turkish Airlines

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

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