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

Return flights

17 Feb - 24 Feb	Iberia
20 Feb - 27 Feb	Iberia
01 Feb - 08 Feb	Iberia
11 Feb - 18 Feb	Iberia
03 Feb - 10 Feb	Iberia
05 Feb - 12 Feb	Iberia
19 Feb - 26 Feb	Iberia
23 Feb - 02 Mar	Iberia
25 Feb - 04 Mar	Iberia
01 Feb - 21 Feb	United
07 Feb - 14 Feb	Iberia
09 Feb - 16 Feb	Iberia
27 Feb - 06 Mar	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.

Book a cheap hotel in Madrid

Cheap car rent in Madrid

Cheapest return flights from Seattle to Madrid in February from 376€

Return flights