The flight distance from San Diego International Airport (SAN) in San Diego, United States to Viseu Airport (VSE) in Viseu Airport, Portugal is 9,099 kilometers (5,654 miles / 4,913 nautical miles). The estimated flight time for this route is approximately 12h, flying northeast at a heading of 46°.

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 United States with Portugal. 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 08:00 in San Diego, it's 16:00 in Viseu Airport. With a 8-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 2,043 feet between the two airports. Viseu Airport sits higher than San Diego International Airport.

The return flight from Viseu Airport (VSE) to San Diego (SAN) follows a heading of 307° (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 San Diego International Airport (SAN) and Viseu Airport (VSE) detail pages, or use our flight duration calculator to compare other routes.