Here is an example of one possible itinerary:
Step 1: Travel to a country that has a direct connection to the United States
* Ho Chi Minh City (Vietnam) to Seoul (South Korea): 6-hour flight
* Seoul (South Korea) to Los Angeles (USA): 11-hour flight
Step 2: Take a domestic flight to New Jersey
* Los Angeles (USA) to Newark (New Jersey): 5-hour flight
Total travel time: Approximately 22 hours
Please note that this is just one example itinerary, and there are many other options available. The actual travel time may vary depending on the airline, flight schedule, and layovers. It's always best to check with a travel agent or airline for the most up-to-date information.