The flight distance from Leonardo Da Vinci (Fiumicino) International Airport (FCO) in Rome, Italy to Southwest Washington Regional Airport (KLS) in Kelso, United States is 9,279 kilometers (5,766 miles / 5,010 nautical miles). The estimated flight time for this route is approximately 12h, flying north northwest at a heading of 331°.

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

This is an international route connecting Italy 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 22:26 in Rome, it's 13:26 in Kelso. 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.

The return flight from Kelso (KLS) to Rome (FCO) follows a heading of 32° (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 Leonardo Da Vinci (Fiumicino) International Airport (FCO) and Southwest Washington Regional Airport (KLS) detail pages, or use our flight duration calculator to compare other routes.