The flight distance from San Francisco International Airport (SFO) in San Francisco, United States to Lensk Airport (ULK) in Lensk, Russia is 7,915 kilometers (4,918 miles / 4,274 nautical miles). The estimated flight time for this route is approximately 10h, flying north northwest at a heading of 334°.

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 Russia. 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 02:57 in San Francisco, it's 19:57 in Lensk. With a 17-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 Lensk (ULK) to San Francisco (SFO) follows a heading of 45° (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 San Francisco International Airport (SFO) and Lensk Airport (ULK) detail pages, or use our flight duration calculator to compare other routes.