Cheapest return flights from Seattle to Barcelona in March from $483

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 March 2025 (see full year).

Return flights

23 Mar - 07 Apr Aer Lingus
26 Mar - 01 Apr Austrian Airlines
27 Mar - 01 Apr Lufthansa
17 Mar - 25 Mar SWISS
16 Mar - 30 Mar United
20 Mar - 31 Mar British Airways
29 Mar - 05 Apr Iberia
20 Mar - 29 Mar Air Canada
21 Mar - 30 Mar Alaska Airlines
27 Mar - 03 Apr Iberia
25 Mar - 01 Apr Iberia
26 Mar - 02 Apr Iberia
19 Mar - 26 Mar Iberia
17 Mar - 24 Mar Iberia
18 Mar - 25 Mar Iberia
23 Mar - 30 Mar Iberia
20 Mar - 27 Mar Iberia

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

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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