The flight distance from Lisbon Portela Airport (LIS) in Lisbon, Portugal to Boulder Municipal Airport (WBU) in Boulder, United States is 7,800 kilometers (4,847 miles / 4,212 nautical miles). The estimated flight time for this route is approximately 10h, flying northwest at a heading of 306°.

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

Time zone information: When it's 20:24 in Lisbon, it's 13:24 in Boulder. With a 7-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 4,914 feet between the two airports. Boulder Municipal Airport sits higher than Lisbon Portela Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Boulder (WBU) to Lisbon (LIS) follows a heading of 56° (northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Lisbon Portela Airport (LIS) and Boulder Municipal Airport (WBU) detail pages, or use our flight duration calculator to compare other routes.