Jones died in a Bangkok hospital on November 21, while her best friend Holly Bowles died a day later in another hospital in Thailand's capital.
The 19-year-olds from Beaumaris in Melbourne's southeast had been on holiday in Laos and were among six foreign nationals who died in a mass drink-spiking event in the popular tourist town of Vang Vieng.
Guests streamed through the grounds of Mentone Girls Grammar on Friday for Jones' funeral, turning it into a sea of rainbow after they were asked to wear colour as a mark of how she lived her life.
Jones' family had thanked Australians and the local community for the outpouring of love, support and compassion during an extremely difficult time, school principal Natalie Charles said.
"Your kindness has been a source of strength and comfort for our family," Ms Charles said, reading a statement on behalf of her family.
"Today is a profoundly significant day as we come together to honour Bianca's life and to say our final goodbyes.
"The immense love shown by so many is a testament to the profound impact she had reflected in the scale of today's farewell."