Cheapest return flights from Seattle to Barcelona in March from 372€

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

Return flights

06 Mar - 10 Mar Lufthansa
09 Mar - 15 Mar Air France
02 Mar - 06 Mar Icelandair
25 Mar - 08 Apr Turkish Airlines
07 Mar - 15 Mar Icelandair
13 Mar - 20 Mar Lufthansa
06 Mar - 15 Mar Icelandair
21 Mar - 28 Mar Alaska Airlines
25 Mar - 01 Apr Icelandair

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

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