The flight distance from Nantucket Memorial Airport (ACK) in Nantucket, United States to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 4,126 kilometers (2,564 miles / 2,228 nautical miles). The estimated flight time for this route is approximately 6h, flying west northwest at a heading of 298°.

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 3-hour time difference between the two cities.

Time zone information: When it's 02:26 in Nantucket, it's 23:26 in Seattle. The 3-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Seattle (SEA) to Nantucket (ACK) follows a heading of 80° (east). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Nantucket Memorial Airport (ACK) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.