The flight distance from Fernando Luis Ribas Dominicci Airport (SIG) in San Juan, United States to London Stansted Airport (STN) in London, United Kingdom is 6,788 kilometers (4,218 miles / 3,665 nautical miles). The estimated flight time for this route is approximately 9h, flying northeast at a heading of 40°.

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 United Kingdom. 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 14:23 in San Juan, it's 18:23 in London. The 4-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from London (STN) to San Juan (SIG) follows a heading of 263° (west). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Fernando Luis Ribas Dominicci Airport (SIG) and London Stansted Airport (STN) detail pages, or use our flight duration calculator to compare other routes.