The flight distance from Tan Son Nhat International Airport (SGN) in Ho Chi Minh City, Vietnam to Siskiyou County Airport (SIY) in Montague, United States is 12,315 kilometers (7,652 miles / 6,650 nautical miles). The estimated flight time for this route is approximately 15h, flying northeast at a heading of 37°.

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

This is an international route connecting Vietnam with United States. It is an intercontinental flight between Asia and North America. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 07:20 in Ho Chi Minh City, it's 17:20 in Montague. With a 14-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 2,618 feet between the two airports. Siskiyou County Airport sits higher than Tan Son Nhat International Airport.

The return flight from Montague (SIY) to Ho Chi Minh City (SGN) follows a heading of 307° (northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Tan Son Nhat International Airport (SGN) and Siskiyou County Airport (SIY) detail pages, or use our flight duration calculator to compare other routes.