To correct a name mistake on a British Airways booking, your options depend on how quickly you catch the error. If you booked directly with BA and notice the mistake within 24 hours, you can often cancel the entire booking for a full refund and rebook with the correct name. If the 24-hour "cooling off" period has passed, you generally cannot "transfer" the ticket to someone else, but BA allows for minor spelling corrections (usually up to 3 characters) or title changes for free or a small administrative fee. However, you must call their customer service center to do this; it usually cannot be done through "Manage My Booking." If the mistake is significant (like a completely different last name due to marriage), you may be required to provide legal documentation like a marriage certificate. If you booked through a travel agent or a third-party site (like Expedia), you must contact them directly, as BA cannot touch those bookings. Always ensure the name on the ticket matches your passport exactly to avoid being denied boarding at the gate.