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

Return flights

01 Feb - 12 Feb	United
03 Feb - 10 Feb	Iberia
06 Feb - 13 Feb	Iberia
18 Feb - 25 Feb	Iberia
21 Feb - 28 Feb	Iberia
10 Feb - 17 Feb	Delta
17 Feb - 24 Feb	Delta
01 Feb - 08 Feb	Delta
24 Feb - 03 Mar	Iberia
21 Feb - 01 Mar	Icelandair
27 Feb - 06 Mar	Iberia
01 Feb - 14 Feb	Hawaiian Airlines
09 Feb - 16 Feb	Iberia

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

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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Cheapest return flights from Seattle to Madrid in February from 409€

Return flights