Yes - if the instrument you're bringing is smaller than 55x40x20cm you can carry this as hand luggage. For larger instruments, you'll need to pay a bit extra to check them in as hold luggage. This can be booked on our Flight Extras website 90 days before your return flight. We recommend you do this at least two months before you travel as there's limited space. That said, you can add baggage allowance up to six hours before your outbound flight and 25 hours before your return flight, if there's room. If you need help with this, please call us on 01 693 7700 (ROI) or 028 90 389 387 (NI). We recommend you mark the instrument as fragile and ask check-in staff to handle with care.