Health Minister Adrian Dix said the new cases are disproportionately in the Fraser Health and Vancouver Coastal health regions.
It says a person with COVID-19 was onboard flight 538 on July 29, affecting rows 5 to 11.
Passengers on the affected flights are urged to self-monitor for symptoms of COVID-19 for 14 days.
All travellers from outside Canada must self-isolate for 14 days, which can limit the possible spread of the illness from global flights.
"The cost of keeping our schools closed is too high", she said, adding that going back is essential to children's mental health and to their education.
"Introductions from other provinces, but also from countries into Canada, are one of the things that put us at risk".
The latest update on COVID-19 in B.C. revealed another 53 cases were reported in the province in the last 24 hours. "So that's our warning right now, and that's where we're seeing the virus get a chance to transmit to potentially large numbers of people".
Dr. Henry says that she understands the concerns many parents across the province may have when it comes to having to send their kids back to school in the fall, however, says that it is essential for students. According to researchers with Johns Hopkins University and Medicine, the number of confirmed COVID-19 worldwide is now more than 18.9 million, with more than 710,000 deaths.
Eleven people are in hospital, including five who are being treated in intensive care.
Ralph Kaisers, president of the Vancouver Police Union, tweeted on Friday that three officers have caught the virus and two full patrol teams are in self-isolation as a result of the incident.