Dear friend,
Thanks for contacting Top China Travel!
There are many flights from Jarkata to Hongkong, so you can take flight to Hongkong. And we have got that you want to visit to Hongkong for 7 days, we are happy to help you with your trip in China, later our advisor Daniel will send you the details of itinerary and the price.
Any further request or question, please feel free to contact with us.