The flight distance from Barcelona International Airport (BCN) in Barcelona, Spain to St Mary's Airport (KSM) in St Mary'S, United States is 8,447 kilometers (5,249 miles / 4,561 nautical miles). The estimated flight time for this route is approximately 11h, flying north at a heading of 353°.

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

Time zone information: When it's 16:44 in Barcelona, it's 06:44 in St Mary'S. With a 10-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from St Mary'S (KSM) to Barcelona (BCN) follows a heading of 11° (north northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Barcelona International Airport (BCN) and St Mary's Airport (KSM) detail pages, or use our flight duration calculator to compare other routes.