Cheapest return flights from Seattle to Madrid in March from 463€

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

Return flights

09 Mar - 16 Mar Condor
10 Mar - 17 Mar British Airways
16 Mar - 25 Mar American Airlines
26 Mar - 06 Apr Condor
05 Mar - 12 Mar Iberia
10 Mar - 25 Mar Air France
02 Mar - 09 Mar Iberia
20 Mar - 05 Apr Turkish Airlines
20 Mar - 27 Mar Aer Lingus
21 Mar - 28 Mar Hawaiian Airlines

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

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