The flight distance from Harrisburg International Airport (MDT) in Harrisburg, United States to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 3,687 kilometers (2,291 miles / 1,991 nautical miles). The estimated flight time for this route is approximately 5h, flying west northwest at a heading of 298°.

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 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 05:42 in Harrisburg, it's 02:42 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 Harrisburg (MDT) 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 Harrisburg International Airport (MDT) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.