Cheapest return flights from Seattle to Madrid in January from 370€

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

Return flights

13 Jan - 20 Jan Iberia
20 Jan - 27 Jan Iberia
13 Jan - 10 Feb Finnair
20 Jan - 29 Jan British Airways
21 Jan - 29 Jan Air France
28 Jan - 04 Feb Iberia
15 Jan - 22 Jan Iberia
16 Jan - 23 Jan Iberia
22 Jan - 29 Jan Iberia
08 Jan - 15 Jan Iberia
18 Jan - 25 Jan Iberia
30 Jan - 06 Feb Iberia
22 Jan - 26 Jan Air France
15 Jan - 07 Feb United
26 Jan - 02 Feb Iberia

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

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