Cheapest return flights from Seattle to Madrid in April from $537

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

Return flights

20 Apr - 30 Apr Condor
13 Apr - 20 Apr Air Canada
12 Apr - 23 Apr British Airways
07 Apr - 14 Apr Iberia
21 Apr - 28 Apr Iberia
11 Apr - 25 Apr Air Canada
01 Apr - 08 Apr Iberia
16 Apr - 23 Apr Iberia
09 Apr - 16 Apr Iberia
12 Apr - 19 Apr Iberia
27 Apr - 04 May Iberia
26 Apr - 03 May Iberia
29 Apr - 06 May Iberia
25 Apr - 02 May Iberia
28 Apr - 05 May Iberia
30 Apr - 07 May Iberia
24 Apr - 01 May Iberia

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

Powered by

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

Feel free to contact us with any feedback or request another flight research.