Alaska Airlines

Flights from Seattle to Barcelona

SEA BCN · Spain

From

£745

return · 1 adult · economy

Operated by

Alaska Airlines

Shortest outbound

13h 5m

Direct option

No (connecting only)

Live offers

Sample sail-date: 2026-10-10 outbound · 2026-10-17 return. Prices refresh daily.

How long is a flight from Seattle to Barcelona with Alaska Airlines?: The shortest current offer is 13h 5m outbound from SEA to BCN. On the sample dates we only see connecting options — try other dates for direct flights.
Does Alaska Airlines fly direct from SEA to BCN?: Not on these sample dates — the cheapest offers we see are connecting flights. Direct service may exist on other dates.
How much does a Alaska Airlines ticket from SEA to BCN cost?: The cheapest return economy fare we found today is £745 for 1 adult, based on sample dates 2026-10-10 → 2026-10-17. Prices change daily — run the live search for current fares.