By booking an extra seat you will be able to travel with instruments bigger than 90 x 35 x 20 cm / 35 x 13 x 7 in. Maximum size is 140 x 46 x 30 cm / 55 x 18 x 11 in for instruments in the cabin. Guitars and cellos usually fall within this category of instruments. Please contact our customer care team at least 48 hours prior to departure to book seat for both you and the instrument.