The flight distance from Seattle-Tacoma International Airport (SEA) in Seattle, United States to Thule Air Base (THU) in Thule, Greenland is 3,994 kilometers (2,482 miles / 2,156 nautical miles). The estimated flight time for this route is approximately 6h, flying north northeast at a heading of 19°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is an international route connecting United States with Greenland. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 07:42 in Seattle, it's 11:42 in Thule. The 4-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Thule (THU) to Seattle (SEA) follows a heading of 248° (west southwest). 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 Thule Air Base (THU) detail pages, or use our flight duration calculator to compare other routes.