Cheapest return flights from Seattle to Barcelona in March from 379€

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

Return flights

08 Mar - 17 Mar Lufthansa
05 Mar - 19 Mar Lufthansa
10 Mar - 18 Mar Lufthansa
03 Mar - 12 Mar Lufthansa
04 Mar - 23 Mar Lufthansa
18 Mar - 24 Mar Lufthansa
18 Mar - 23 Mar Lufthansa
13 Mar - 26 Mar Turkish Airlines
02 Mar - 04 Mar Icelandair
20 Mar - 29 Mar Hawaiian Airlines

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

Powered by

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Feel free to contact us with any feedback or request another flight research.