AirHint found the following cheapest return flights from Seattle (SEA) to Madrid (MAD) in November 2025 (see full year).

Return flights

17 Nov - 25 Nov	British Airways
10 Nov - 25 Nov	British Airways
10 Nov - 20 Nov	British Airways
09 Nov - 20 Nov	Air France
09 Nov - 21 Nov	Air France
09 Nov - 19 Nov	Air France
09 Nov - 18 Nov	Air France
05 Nov - 16 Dec	Air France
12 Nov - 23 Dec	Delta
10 Nov - 17 Nov	Air France
10 Nov - 06 Dec	British Airways
18 Nov - 13 Dec	British Airways
17 Nov - 13 Dec	British Airways
05 Nov - 12 Nov	Air France
14 Nov - 20 Nov	Air France
15 Nov - 06 Dec	British Airways
26 Nov - 01 Dec	Air Canada
25 Nov - 01 Dec	Air Canada
24 Nov - 01 Dec	Air Canada
29 Nov - 06 Dec	Iberia

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

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 November from $430

Return flights