The flight distance from Denver International Airport (DEN) in Denver, United States to Gillespie Field (SEE) in San Diego/El Cajon, United States is 1,349 kilometers (838 miles / 728 nautical miles). The estimated flight time for this route is approximately 3h, flying west southwest at a heading of 238°.

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 02:01 in Denver, it's 01:01 in San Diego/El Cajon.

There is a significant elevation difference of 5,046 feet between the two airports. Gillespie Field sits lower than Denver International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from San Diego/El Cajon (SEE) to Denver (DEN) follows a heading of 51° (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 Denver International Airport (DEN) and Gillespie Field (SEE) detail pages, or use our flight duration calculator to compare other routes.