Cheapest return flights from Seattle to Barcelona in January from 723€

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

Return flights

11 Jan - 18 Jan Icelandair
07 Jan - 14 Jan United
21 Jan - 28 Jan United
06 Jan - 13 Jan United
12 Jan - 19 Jan United
22 Jan - 29 Jan United
02 Jan - 09 Jan Icelandair
31 Jan - 07 Feb United
01 Jan - 08 Jan United

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

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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