The flight distance from Washington Dulles International Airport (IAD) in Washington, United States to Marianske Lazne Airport (MKA) in Marianske Lazne, Czech Republic is 6,828 kilometers (4,243 miles / 3,687 nautical miles). The estimated flight time for this route is approximately 9h, flying northeast at a heading of 47°.

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 Czech Republic. 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 23:59 in Washington, it's 05:59 in Marianske Lazne. With a 6-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 1,460 feet between the two airports. Marianske Lazne Airport sits higher than Washington Dulles International Airport.

The return flight from Marianske Lazne (MKA) to Washington (IAD) follows a heading of 298° (west 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 Washington Dulles International Airport (IAD) and Marianske Lazne Airport (MKA) detail pages, or use our flight duration calculator to compare other routes.