Credit card points cannot be directly exchanged for air tickets, but you can use mileage to pay for air tickets. The general approach is: first, you should accumulate a certain degree of points and be able to redeem mileage; Register a member on the airline website corresponding to the joint credit card, and then convert the credit card points into mileage under the member's name; Use your member account to buy air tickets in this airline; At the time of settlement, you can use points to pay for air tickets, so you can exchange credit card points for air tickets.