In many cases, booking the priority boarding package (which usually includes a larger cabin bag) at the time of booking is cheaper than adding luggage separately later.
Travel expert Gavin Lapidus, company director at eShores, advises waiting until check-in to book your suitcases, as it could be significantly cheaper than your initial booking.
However, on quieter flights, airlines may reduce baggage fees or offer cheaper upgrades at check-in to encourage passengers to pay for extras.".
For instance, on busy flights where overhead space is limited, adding a cabin bag later might cost more.
Some airlines allow an additional duty-free shopping bag onboard, so buying a small item at the airport and using the bag for extra storage can be a clever workaround.
