The flight distance from General Edward Lawrence Logan International Airport (BOS) in Boston, United States to Sambailo Airport (SBI) in Koundara, Guinea is 6,430 kilometers (3,995 miles / 3,472 nautical miles). The estimated flight time for this route is approximately 9h, flying east southeast at a heading of 103°.

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 Guinea. It is an intercontinental flight between North America and Africa. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 09:55 in Boston, it's 14:55 in Koundara. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Koundara (SBI) to Boston (BOS) follows a heading of 312° (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 General Edward Lawrence Logan International Airport (BOS) and Sambailo Airport (SBI) detail pages, or use our flight duration calculator to compare other routes.