A codeshare is an agreement between airlines to sell seats on each other's flights to provide more destinations and flight choices. Codeshare flights are displayed as flights for both the operating carrier (the airline that uses its aircraft for the flight) and the marketing carrier (the partner airline that sells seats on the operating carrier’s flights). Codeshare flights include both the operating carrier's 2-digit designator code and flight number and the marketing carrier’s 2-digit designator code and flight number.
When making codeshare reservations, US Airways must disclose the name of the operating carrier. Codeshare information will be provided by the reservations agent, your travel agent or displayed in an online reservation. Codeshare details also will appear on flight coupons and e-tickets.
About US Airways codeshares
US Airways has codeshare agreements with several leading airlines. Additionally, US Airways Express flights are operated by partner carriers under contract with US Airways Group, Inc.
Every airline has a unique two-digit designator code. The US Airways designator code is “US” and will appear on reservations as follows:
US - flights operated by US Airways
US* - flights operated by other carriers on behalf of US Airways (the name of the operating carrier will be disclosed when making a reservation).