Since Air China only departs directly from a few U.S. Airports, we offer services to book connection flights to and from SFO airport in order for you to join our tours to China. Per our agreement with Air China, we are only allowed to book flights from certain cities within the U.S., especially at such reasonable rates year round. If you cannot find the airport nearest to you listed, you must either choose the next closest one, or make your own arrangements to SFO. All fares quoted are round-trip airfare per person including taxes already. If you choose to use our services, you will be booked on one of the following 2 airlines: United Airlines (UA) or Delta Airlines (DL). The airline used will depend on our agreement with Air China. Flights are subject to availability! Since the add-on's we have to offer are at a special rate obtained through Air China, not all flights you see online for UA or DL will be available for us to book. If you decide to stopover in San Francisco, a $30 airport stopover tax will be applied per person each way. This tax does not include hotel accommodations or transfers while in San Francisco. We offer services to either: Radisson-$135/nt or Double Tree Hotel-$135/nt near the SFO airport with free shuttle services to and from the airport.The rates listed are based on a single or double occupancy rate. If you have a triple or quadruple occupancy in your party for the SFO accommodations, only Double Tree offers this option. A triple room is $145/nt and a quadruple room is $155/nt. If you are making your own flight arrangements to SFO, we can still book these accommodations for you.