The size of the carry-on must not exceed 55 x 35 x 25 cm, as always, including pockets, wheels and handles. They also have a weight limit which, depending on your travel cabin, must not exceed 12 kg / 26 lb or 18 kg / 39.7 lb.

The most common weight limits are 15 lb (6.8 kg), 18 lb (8 kg), and 22 lb (10kg), but you should always check with your airline before flying. In this article, we’ll outline the carry on weight limits by airline and then give some advice on packing lighter.

For many major domestic airlines — Delta, Southwest, JetBlue — there are no weight restrictions for carry-on bags. You'll just have to be able to lift it above your head into the storage bin. And in most cases, even if airlines do list a specific pound or kilogram limit on their websites, they likely won't weigh your carry-on bags.

While all domestic airlines have weight limits for checked luggage, most don't publish weight restrictions for carry-on bags. International airlines post weight limits ranging from 15 to 26 lbs., but it's doubtful that your carry-on will be weighed. Just be sure you can lift it over your head to place it in the overhead bin unassisted.

For economy fares, carry-on weight limits vary among major carriers, including: Emirates, Singapore Airlines, Cathay Pacific, Qatar Airways, Air New Zealand: 15 pounds. Turkish Airlines: 17 pounds. Virgin Atlantic, ANA, Korean Air, Japan Airlines: 22 pounds. La Compagnie: 39 pounds. British Airways: 51 pounds.