Cheapest return flights from Seattle to Barcelona in April from 575€

Best time to book flights for Seattle (SEA) to Barcelona (BCN) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Barcelona (BCN) in April 2025 (see full year).

Return flights

27 Apr - 04 May Icelandair
01 Apr - 08 Apr Aer Lingus
02 Apr - 09 Apr Aer Lingus
01 Apr - 09 Apr Aer Lingus
23 Apr - 30 Apr Icelandair
22 Apr - 29 Apr Icelandair
27 Apr - 10 May Icelandair
16 Apr - 23 Apr Turkish Airlines
14 Apr - 25 Apr Turkish Airlines
02 Apr - 16 Apr Air France
26 Apr - 04 May Hawaiian Airlines
29 Apr - 19 May Icelandair
02 Apr - 18 Apr Delta
03 Apr - 10 Apr Lufthansa
22 Apr - 13 May Finnair
29 Apr - 06 May Delta
26 Apr - 31 May Icelandair

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

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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