Cheapest return flights from Seattle to Madrid in March from 403€

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

Return flights

02 Mar - 09 Mar Air France
09 Mar - 16 Mar Iberia
11 Mar - 18 Mar Iberia
12 Mar - 04 Apr Condor
01 Mar - 08 Mar Iberia
25 Mar - 01 Apr Iberia
23 Mar - 30 Mar Iberia
05 Mar - 12 Mar Iberia
24 Mar - 31 Mar Iberia
07 Mar - 14 Mar Iberia
28 Mar - 18 Apr Icelandair
29 Mar - 18 Apr Turkish Airlines
31 Mar - 07 Apr Iberia
18 Mar - 28 Mar Icelandair
26 Mar - 02 Apr Iberia
17 Mar - 24 Mar Iberia
27 Mar - 03 Apr Iberia
30 Mar - 06 Apr Iberia
29 Mar - 05 Apr Iberia
28 Mar - 04 Apr Iberia

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

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