The flight distance from San Diego International Airport (SAN) in San Diego, United States to Union County, Troy Shelton Field (USC) in Union, United States is 3,279 kilometers (2,037 miles / 1,770 nautical miles). The estimated flight time for this route is approximately 5h, flying east northeast at a heading of 76°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

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 3-hour time difference between the two cities.

Time zone information: When it's 01:54 in San Diego, it's 04:54 in Union. The 3-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Union (USC) to San Diego (SAN) follows a heading of 276° (west). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the San Diego International Airport (SAN) and Union County, Troy Shelton Field (USC) detail pages, or use our flight duration calculator to compare other routes.