Distance From Ontario International Airport to Tan Son Nhat International Airport, ONT - SGN Distance

The distance from Ontario International Airport (ONT) to Tan Son Nhat International Airport (SGN) is 8190 miles or 13181 kilometers or 7113 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Ontario ( United States ) to Ho Chi Minh City ( Vietnam )?

A one-way nonstop (direct) flight between Ontario and Ho Chi Minh City takes around 18 hours 49 minutes.

Estimated flight time from Ontario International Airport, Ontario, United States to Tan Son Nhat International Airport, Ho Chi Minh City, Vietnam is 18 hours 49 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • ONT - SGN

Kilometers		13181 km
Statute Miles		8190 miles
Nautical Miles		7113 nm
Avg. Time of Flight		18 hours 49 minutes

Ontario International Airport to Tan Son Nhat International Airport Flight Route Map - ONT to SGN Flight Path

Location of Ontario International Airport & Tan Son Nhat International Airport is given below.
Click the map to view Ontario to Ho Chi Minh City nonstop flight path and travel direction.

Click to see flight route on Google Map between Ontario, United States and Ho Chi Minh City, Vietnam. .

Nonstop flight route between Ontario, United States and Ho Chi Minh City, Vietnam.

Time Difference Between the Airports • ONT - SGN

Time difference between Ontario (United States) and Ho Chi Minh City (Vietnam) is 15 Hours.
Ho Chi Minh City time is 15 Hours ahead of Ontario.

Location	Local Time
Ontario (United States)	2025-12-13, 10:58:06 PST
Ho Chi Minh City (Vietnam)	2025-12-14, 01:58:06 +07

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Ontario International Airport (ONT / KONT) Ontario, United States

Destination

Tan Son Nhat International Airport (SGN / VVTS) Ho Chi Minh City, Vietnam