If the airline offers luggage through us, our website will prompt you to add the same as you go further along the booking process. If not, then once you finish your booking process, you may be able to add baggage on the airline's website directly under their Manage Booking function or at the airport during check-in.
Some fares only allow baggage to be added once a booking has been made. If you are not given the option during the booking process, please contact the airline once you have completed the booking to add any baggage, as per their policy or procedure.