Cheapest return flights from Seattle to Barcelona in June from 766€

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

Return flights

23 Jun - 01 Jul Condor
24 Jun - 02 Jul Lufthansa
29 Jun - 07 Jul Condor
30 Jun - 08 Jul Condor
30 Jun - 07 Jul Condor
17 Jun - 02 Jul Icelandair
28 Jun - 06 Jul Condor
26 Jun - 04 Jul Condor
25 Jun - 03 Jul Lufthansa
27 Jun - 05 Jul SWISS
01 Jun - 30 Jun Turkish Airlines
21 Jun - 28 Jun Icelandair

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

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