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

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

Return flights

27 Oct - 12 Nov Air France
18 Oct - 31 Oct Delta
30 Oct - 06 Nov Iberia
30 Oct - 17 Nov Air France
17 Oct - 08 Nov Air France
27 Oct - 01 Nov Condor
26 Oct - 31 Oct Alaska Airlines
28 Oct - 04 Nov Iberia
24 Oct - 31 Oct Iberia
22 Oct - 29 Oct Iberia
26 Oct - 02 Nov Iberia
20 Oct - 27 Oct Iberia

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

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