The flight distance from Seattle-Tacoma International Airport (SEA) in Seattle, United States to Fernando Luis Ribas Dominicci Airport (SIG) in San Juan, United States is 5,987 kilometers (3,720 miles / 3,233 nautical miles). The estimated flight time for this route is approximately 8h, flying east southeast at a heading of 102°.

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 a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation. Despite being a domestic route, there is a 4-hour time difference between the two cities.

Time zone information: When it's 01:19 in Seattle, it's 05:19 in San Juan. The 4-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from San Juan (SIG) to Seattle (SEA) follows a heading of 316° (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 Seattle-Tacoma International Airport (SEA) and Fernando Luis Ribas Dominicci Airport (SIG) detail pages, or use our flight duration calculator to compare other routes.