How Do I Select Seat on British Airways?

1-844-414-9223 During the booking process, British Airways offers passengers the chance to choose their seats.According to British Airways' seat selection policy, passengers traveling in first class or business class typically have more freedom in selecting their seats and access to priority seating areas. British Airways also offers the option of purchasing seat assignments in advance or leaving it for free allocation during check-in.
Also, visit - https://www.flyostudio.com/seat-selection/british-airways-ba.aspx