Cheapest return flights from Seattle to Barcelona in January from $379

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

Return flights

09 Jan - 16 Jan Icelandair
11 Jan - 20 Jan Icelandair
14 Jan - 23 Jan Icelandair
18 Jan - 27 Jan Icelandair
30 Jan - 06 Feb Icelandair
30 Jan - 08 Feb Icelandair
07 Jan - 16 Jan Icelandair
18 Jan - 25 Jan Icelandair
21 Jan - 30 Jan Icelandair
23 Jan - 30 Jan Icelandair
23 Jan - 01 Feb Icelandair
25 Jan - 01 Feb Icelandair
25 Jan - 03 Feb Icelandair
28 Jan - 06 Feb Icelandair
16 Jan - 23 Jan Icelandair
16 Jan - 25 Jan Icelandair
24 Jan - 01 Feb Iberia
24 Jan - 02 Feb Iberia
26 Jan - 02 Feb Iberia
26 Jan - 03 Feb Iberia

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

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