Cheapest return flights from Seattle to Barcelona in May from 581€

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 May 2025 (see full year).

Return flights

21 May - 28 May Icelandair
20 May - 27 May Icelandair
07 May - 14 May Icelandair
20 May - 28 May Icelandair
12 May - 19 May Icelandair
18 May - 25 May Icelandair
16 May - 23 May Icelandair
15 May - 22 May Icelandair
14 May - 21 May Air Canada
13 May - 20 May WestJet
28 May - 04 Jun Icelandair
27 May - 03 Jun WestJet
22 May - 05 Jun Icelandair
31 May - 07 Jun WestJet
26 May - 02 Jun Alaska Airlines
25 May - 01 Jun Icelandair
26 May - 06 Jun Turkish Airlines
29 May - 05 Jun Delta

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

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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