The flight distance from Boeing Field/King County International Airport (BFI) in Seattle, United States to Madrid Barajas International Airport (MAD) in Madrid, Spain is 8,515 kilometers (5,291 miles / 4,598 nautical miles). The estimated flight time for this route is approximately 11h, flying northeast at a heading of 43°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

This is an international route connecting United States with Spain. It is an intercontinental flight between North America and Europe. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 21:49 in Seattle, it's 06:49 in Madrid. With a 9-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 1,979 feet between the two airports. Madrid Barajas International Airport sits higher than Boeing Field/King County International Airport.

The return flight from Madrid (MAD) to Seattle (BFI) follows a heading of 323° (northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Boeing Field/King County International Airport (BFI) and Madrid Barajas International Airport (MAD) detail pages, or use our flight duration calculator to compare other routes.