Do you want to visit the Singapore Airlines office in San Francisco, California? Singapore Airlines Office San Francisco is opened in California to better serve its customers in the US. This is because the majority of Singapore Airlines flights are routed through the US and have a large customer base. The opening of this new office is due to Singapore Airlines' increasing customer growth and expansion in North America. When it comes to customer service and handling queries, people can make use of their online or offline channels as they choose - they can call, text, or email them or visit the office themselves.