The airline has major hubs at Tokyo Osaka Nagoya and Okinawa and operates almost 900 daily flights to more than 70 destinations across 20 countries JAL started to operate a daily flight between Helsinki and Tokyo in summer 2013

What is the correctly punctuated version of this sentence?
The airline has major hubs at Tokyo, Osaka, Nagoya and Okinawa, and operates almost 900 daily flights to more than 70 destinations across 20 countries. JAL started to operate a daily flight between Helsinki and Tokyo in summer 2013.