The flight distance from Helena Regional Airport (HLN) in Helena, United States to San Diego International Airport (SAN) in San Diego, United States is 1,606 kilometers (998 miles / 867 nautical miles). The estimated flight time for this route is approximately 3h, flying south southwest at a heading of 198°.

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 1-hour time difference between the two cities.

Time zone information: When it's 10:04 in Helena, it's 09:04 in San Diego.

There is a significant elevation difference of 3,861 feet between the two airports. San Diego International Airport sits lower than Helena Regional Airport.

The return flight from San Diego (SAN) to Helena (HLN) follows a heading of 14° (north 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 Helena Regional Airport (HLN) and San Diego International Airport (SAN) detail pages, or use our flight duration calculator to compare other routes.