The flight distance from Karlovy Vary International Airport (KLV) in Karlovy Vary, Czech Republic to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 8,340 kilometers (5,182 miles / 4,503 nautical miles). The estimated flight time for this route is approximately 11h, flying north northwest at a heading of 330°.

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 Czech Republic 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 05:47 in Karlovy Vary, it's 20:47 in Seattle. 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 1,557 feet between the two airports. Seattle-Tacoma International Airport sits lower than Karlovy Vary International Airport.

The return flight from Seattle (SEA) to Karlovy Vary (KLV) follows a heading of 28° (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 Karlovy Vary International Airport (KLV) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.