When you spend £12,000 on your BA Amex credit card or £10,000 on your BA Amex Premium Plus credit card, within a year, you could be eligible for a companion voucher.
A companion voucher allows you to receive a second seat for a companion on the same flight and cabin as you. British Airways American Express Credit Card Companion Vouchers can be redeemed in economy cabins, while British Airways American Express Premium Plus Card Companion Vouchers can be redeemed across all cabins.
From June 2022, American Express and British Airways are offering solo travellers a 50% discount on the Avios cost of the booking. Plus, more Avios and cash options when you're ready to redeem your companion voucher.