Family Visitor Visa return ticket

[sars_notd_virus]

Hello and good evening, i just want to know if it is a requirement for a family visitor visa to have a return ticket upon arrival at london airport?Thank you and hopping for a reply since will be booking a flight next week.

Welcome to the forum!!
I think I would arranged a return ticket as soon as i booked a flight to avoid any hassle with the ukba.