There are several airlines that operate frequent flights from Seattle (SEA) to Barcelona (BCN) including

• Delta Air Lines with 59 flights a week
• KLM with 47 flights a week
• American Airlines with 46 flights a week
• Air France with 29 flights a week
• United Airlines with 27 flights a week

The earliest flight leaves Seattle Tacoma Intl. Airport at 06:15 and arrives at Barcelona Intl. Airport at 06:10. The last flight of the day departs Seattle at 23:25 and arrives at Barcelona at 23:05.

The flight distance from Seattle to Barcelona is about 9872 km, the shortest flight is 12 hours 45 minutes with Virgin Atlantic.

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