You’re allowed to take at least 1 checked-in bag on international British Airways flights. Weight and size limitations can vary depending on the cabin class of your selected fare, or even the size of the aircraft. Read through your
British Airways itinerary or contact British Airways customer service to figure out what rules apply to your booking. Generally speaking, each piece of luggage should not exceed 29 in x 15 in x 16 in total in dimension and 50 lb in weight. If required, consider purchasing any extra checked baggage prior to the day of your flight. Very often, this is less expensive than paying excess charges at the airport.