The flight distance from Mariscal Lamar Airport (CUE) in Cuenca, Ecuador to San Francisco International Airport (SFO) in San Francisco, United States is 6,343 kilometers (3,941 miles / 3,425 nautical miles). The estimated flight time for this route is approximately 8h, flying northwest at a heading of 320°.

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

Time zone information: When it's 12:09 in Cuenca, it's 09:09 in San Francisco. The 3-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 8,293 feet between the two airports. San Francisco International Airport sits lower than Mariscal Lamar Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from San Francisco (SFO) to Cuenca (CUE) follows a heading of 125° (southeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Mariscal Lamar Airport (CUE) and San Francisco International Airport (SFO) detail pages, or use our flight duration calculator to compare other routes.