The flight distance from Green Bay/Austin Straubel International Airport (GRB) in Green Bay, United States to Lisbon Portela Airport (LIS) in Lisbon, Portugal is 6,335 kilometers (3,936 miles / 3,421 nautical miles). The estimated flight time for this route is approximately 8h, flying east northeast at a heading of 66°.

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 an international route connecting United States with Portugal. It is an intercontinental flight between North America and Europe. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 20:34 in Green Bay, it's 02:34 in Lisbon. With a 6-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from Lisbon (LIS) to Green Bay (GRB) follows a heading of 303° (west 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 Green Bay/Austin Straubel International Airport (GRB) and Lisbon Portela Airport (LIS) detail pages, or use our flight duration calculator to compare other routes.