Cheapest return flights from Seattle to Barcelona in March from $480

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

Return flights

15 Mar - 22 Mar Icelandair
18 Mar - 25 Mar United
17 Mar - 24 Mar Lufthansa
02 Mar - 09 Mar Lufthansa
16 Mar - 23 Mar Lufthansa
23 Mar - 30 Mar Lufthansa
17 Mar - 30 Mar Lufthansa
19 Mar - 26 Mar Icelandair
07 Mar - 14 Mar Icelandair
08 Mar - 15 Mar Icelandair
26 Mar - 02 Apr Turkish Airlines
31 Mar - 07 Apr Turkish Airlines
24 Mar - 18 Apr Turkish Airlines
25 Mar - 01 Apr Turkish Airlines
27 Mar - 03 Apr Turkish Airlines
30 Mar - 06 Apr Turkish Airlines
28 Mar - 04 Apr Icelandair
29 Mar - 05 Apr Turkish Airlines

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

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