Icelandair carry on size allowance is determined by the ticket type. The maximum dimensions for a carry-on bag for travellers travelling in Economy Standard and Economy Light are 55x40x23 cm (21.6x15.7x9 inches). In addition to a personal item, travellers travelling in Economy Flex and Saga Premium are permitted to bring one carry-on bag up to 56x45x25 cm (22x17.7x9.8 inches). Following these dimensions is essential to hassle-free boarding and storage. Travellers should confirm the most recent rules, since any deviations may result in extra fees or need luggage inspection. Adherence to these dimensions guarantees a seamless journey with Icelandair.