The flight distance from Sofia Airport (SOF) in Sofia, Bulgaria to Ugnu-Kuparuk Airport (UUK) in Kuparuk, United States is 7,434 kilometers (4,619 miles / 4,014 nautical miles). The estimated flight time for this route is approximately 10h, flying north at a heading of 357°.

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 Bulgaria 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 21:32 in Sofia, it's 10:32 in Kuparuk. With a 11-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 1,667 feet between the two airports. Ugnu-Kuparuk Airport sits lower than Sofia Airport.

The return flight from Kuparuk (UUK) to Sofia (SOF) follows a heading of 6° (north). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Sofia Airport (SOF) and Ugnu-Kuparuk Airport (UUK) detail pages, or use our flight duration calculator to compare other routes.