Cheapest return flights from Seattle to Madrid in January from 411€

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

Return flights

18 Jan - 25 Jan Air France
21 Jan - 28 Jan Iberia
09 Jan - 27 Jan British Airways
27 Jan - 03 Feb Iberia
31 Jan - 07 Feb Iberia
17 Jan - 24 Jan Iberia
19 Jan - 26 Jan Iberia
23 Jan - 30 Jan Iberia
25 Jan - 01 Feb Iberia
29 Jan - 05 Feb Iberia
13 Jan - 20 Jan Iberia
07 Jan - 30 Jan Lufthansa
09 Jan - 16 Jan Iberia
07 Jan - 09 Feb Lufthansa
11 Jan - 18 Jan Iberia

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

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