Hello, The Air China Office in London is situated on the 11th floor of the West Wing at 389 Chiswick High Road, London W4 4AJ, UK. This office provides services such as flight bookings, ticket modifications, baggage assistance, and general customer support. If you have any questions, contact them. In addition, Air China has an office located at London Heathrow Airport: Level Zero, Room 118, Terminal 2, TW6 1EW. This airport office can be reached. Both offices operate 24/7 to assist passengers with their travel needs.