Check-in at British Airways is quick and easy via the check-in counters at the airport, the self-service kiosks, via your computer or your phone.
If you want to take checked bagage on your trip you are allowed to take 23kg if you bought a ticket with-baggage fare. A checked bag can be up to 90cm x 75cm x 43cm including any bits that stick out, like the handle, pockets and wheels.
You can carry one cabin bag, weighing up to 23 kg with maximum dimensions of 56cm x 45cm x 25cm, plus 1 small bag up to 40 x 30 x 15 onboard the aircraft.