KLM flights from Seattle to Barcelona (SEA→BCN)

Prices were available within the past 7 days and starts at for one-way flights and $803 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Seattle to Barcelona route information

Origin Airport Seattle - Tacoma Intl.
Destination Airport Barcelona Intl.
Airlines Serving Aer Lingus, Aeromexico, Air Canada, Air Europa, Air France, Alitalia, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic
Distance 5,423 mi
Popular Airline KLM

KLM Flights from Seattle to Barcelona

❓Travel advisory due to Coronavirus (COVID-19) with flights Booked

✔️ Many airlines cover travel to highly impacted areas and policies may vary for changes to your booked flight. Dates and destinations change frequently as more is learned about the situation, so it’s important for travellers to check in with the air carriers for the most up to date information. Please visit our Customer Service Portal to learn more about what polices are available for your flight to Barcelona from Seattle.


❓ How much is a flight ticket from Seattle (SEA) -Barcelona (BCN) with KLM?

✔️ Prices were available within the past 7 days and starts at for one-way flights and $803 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.


❓Which month is the cheapest flight ticket for Seattle (SEA) to Barcelona (BCN) with KLM?

✔️ Air fares published on Expedia.com over the past 7 days with lowest prices for one-way departures in and round-trip departures in November.