You can check in at least 1 x 23kg bag* for free unless you're flying Economy Light.
*Passengers flying to or from Delhi, Mumbai, Lagos, Johannesburg, Cape Town, Islamabad and Lahore have a different baggage allowance.
Some things you can hand to us at the gate - like musical instruments and pushchairs. Just make sure you've paid for any additional baggage if it exceeds your standard allowance.
All tickets include hand baggage (max size 23 x 36 x 56cm or 9 x 14 x 22 inches) in addition to the normal stuff you'd carry with you, like your coat or handbag.
Check your bags in at least 2 hours before you fly.