The flight distance from Northern Colorado Regional Airport (FNL) in Fort Collins/Loveland, United States to San Diego International Airport (SAN) in San Diego, United States is 1,383 kilometers (859 miles / 747 nautical miles). The estimated flight time for this route is approximately 3h, flying southwest at a heading of 235°.

This is a short-haul route typically served by narrow-body aircraft such as the Boeing 737 or Airbus A320 family. In-flight service is usually limited to drinks and light snacks.

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 1-hour time difference between the two cities.

Time zone information: When it's 08:08 in Fort Collins/Loveland, it's 07:08 in San Diego.

There is a significant elevation difference of 5,004 feet between the two airports. San Diego International Airport sits lower than Northern Colorado Regional Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from San Diego (SAN) to Fort Collins/Loveland (FNL) follows a heading of 48° (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 Northern Colorado Regional Airport (FNL) and San Diego International Airport (SAN) detail pages, or use our flight duration calculator to compare other routes.