No, your wife cannot use your physical or digital British Airways Silver Card to access benefits if she is traveling without you; airline elite status is strictly non-transferable and tied to the individual account holder's name. However, as a Silver member, you can extend many of your perks to her if you are traveling together on the same booking. In this scenario, she would benefit from your priority boarding, extra baggage allowance, and free seat selection. Additionally, British Airways Silver status (which is Oneworld Sapphire) allows you to bring one guest into the lounge with you, meaning she can enjoy the lounge as long as you are present. If she frequently travels alone and you wish for her to have her own benefits, you might consider setting up a Household Account. While a Household Account allows you to pool and share Avios (reward points) for bookings, it does not share "Tier Points" or status levels; she would still need to earn her own status to access Silver benefits when flying solo. In 2026, airlines use advanced digital verification at lounges and gates, making it impossible to "lend" a status card to a spouse for independent use.