Getting a free seat assignment on British Airways in 2026 depends on your loyalty status or ticket type. If you are a Bronze, Silver, or Gold Executive Club member, you can select your seat for free starting 7 days before departure (for Bronze) or at the time of booking (for Silver and Gold). For standard travelers, the most common way to get a free seat is to wait until online check-in opens 24 hours before the flight. At this point, the seat map opens for everyone to choose from the remaining inventory for free. Additionally, if you are traveling with an infant (under 2) or a child under 12, British Airways will automatically assign you seats together for free a few days before departure to ensure the family is not split up. Those traveling in First or Business (Club World) with flexible fares also enjoy complimentary seat selection from the moment they book their ticket.