The flight distance from Great Falls International Airport (GTF) in Great Falls, United States to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 822 kilometers (511 miles / 444 nautical miles). The estimated flight time for this route is approximately 2h, flying west at a heading of 274°.

This is a short-haul route typically served by narrow-body aircraft such as the Boeing 737 or Airbus A320 family. In-flight service is usually limited to drinks and light snacks.

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 1-hour time difference between the two cities.

Time zone information: When it's 02:36 in Great Falls, it's 01:36 in Seattle.

There is a significant elevation difference of 3,248 feet between the two airports. Seattle-Tacoma International Airport sits lower than Great Falls International Airport.

The return flight from Seattle (SEA) to Great Falls (GTF) follows a heading of 86° (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 Great Falls International Airport (GTF) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.