ONT's Public Safety Administrator, Dean Brown, said they hoped the programme would recapture the magic of previous eras when people could access the gate.
"We all remember the excitement of being able to meet arriving family and friends as they get off the plane," said Brown,
"ONT+ is a way to bring back some of that experience from decades ago, in a safe and secure manner."
Non-travellers will need to complete an online application within seven days of the visit. Once this is approved, they will be emailed a pass, which can only be shown digitally. Printed ONT+ visit passes will not be considered valid.
To maintain the same level of security, visitors will be subject to the same TSA security regulations as travellers. They will not be able to bring any banned items like large quantities of liquid.
In previous decades, it was normal to escort a friend or family member to and from the gate at an airport, waving them off or hugging them upon return. However, following the 9/11 terrorist attacks, only travellers were allowed to pass through security.
Ontario International Airport isn't the only place where visitors can now go a little further into the airport. The SEA Visitor Pass at Seattle Tacoma Airport also allows people without a plane ticket to register and enter the secure part of the airport.
Tampa International Airport and Pittsburgh International Airport have tested similar programs but were suspended.