The flight distance from Cascais Airport (CAT) in Cascais Airport, Portugal to Ronald Reagan Washington Ntl Airport (DCA) in Washington, United States is 5,721 kilometers (3,555 miles / 3,089 nautical miles). The estimated flight time for this route is approximately 8h, flying west northwest at a heading of 293°.

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 09:40 in Cascais Airport, it's 04:40 in Washington. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Washington (DCA) to Cascais Airport (CAT) follows a heading of 67° (east 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 Cascais Airport (CAT) and Ronald Reagan Washington Ntl Airport (DCA) detail pages, or use our flight duration calculator to compare other routes.