Already considered one of the best airports in the country, San Francisco International (SFO) recently introduced the first-ever US airport butler service. The concierge program does everything from meet and greet services at the gate to transfers throughout the terminals, meeting space rentals, and even delivering gifts to travelers. The program, which is available to all travelers, offers a long list of customizable services varying in price. While SFO is the first US airport to offer the services, the program has been available at Vancouver International Airport since early 2013. Other US airports, including Denver, Chicago, and New York, have looked into the possibility of rolling out similar services in the near future.