Cheapest return flights from Seattle to Barcelona in June from $772

Best time to book flights for Seattle (SEA) to Barcelona (BCN) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Barcelona (BCN) in June 2025 (see full year).

Return flights

03 Jun - 08 Jun Hawaiian Airlines
02 Jun - 08 Jun Alaska Airlines
02 Jun - 11 Jun Alaska Airlines
09 Jun - 16 Jun WestJet
07 Jun - 17 Jun WestJet
09 Jun - 17 Jun WestJet
02 Jun - 16 Jun WestJet
06 Jun - 14 Jun Icelandair
26 Jun - 03 Jul WestJet
06 Jun - 30 Jun Alaska Airlines
10 Jun - 17 Jun Turkish Airlines
18 Jun - 15 Jul Lufthansa
21 Jun - 17 Jul Turkish Airlines
19 Jun - 15 Jul Air Canada
20 Jun - 16 Jul Turkish Airlines
27 Jun - 11 Jul Turkish Airlines
28 Jun - 05 Jul United

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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