Cathay Pacific Baggage Allowance by Cabin Class

No piece of cabin baggage can exceed 56 x 36 x 23 cm (roughly 22 x 14.2 x 9.1 in) on Cathay Pacific, regardless of cabin. What changes by class is the weight you're allowed to bring in that same size envelope: Economy and Premium Economy passengers can bring one cabin bag up to 7 kg (15.4 lb), Business passengers up to 10 kg (22 lb), and First Class passengers up to 15 kg (33 lb).

That's a meaningful jump between cabins for the exact same size bag. A hardside cabin case that weighs close to 4 or 5 kg empty leaves noticeably less usable weight in Economy's 7 kg allowance than it does in Business's 10 kg or First's 15 kg allowance, so cabin choice changes not just comfort but how much you can actually carry on board.

It's also worth noting what stays constant: the 56 x 36 x 23 cm size box applies whether you're in Economy or First. Upgrading doesn't buy you a physically bigger bag, it buys you a heavier one within the same footprint, which matters if your priority is fitting a specific item like a laptop bag or camera case rather than just adding more clothes.

On top of the main cabin bag, Cathay Pacific permits passengers in every cabin to bring one additional small item, such as a small handbag, laptop bag, small backpack, camera bag, or briefcase. This functions similarly to the personal item allowed on U.S. carriers, though Cathay Pacific doesn't publish a specific size limit for it the way American Airlines does for its 18 x 14 x 8 inch personal item, so use judgment and keep it genuinely small and slim enough to fit under the seat without crowding your legroom.

In practice, that means the small item is meant to hold what you need in-flight, a laptop, a book, medication, rather than function as a second full-size bag. Gate staff on any airline can require an oversized 'small item' to be checked or gate-checked if it clearly doesn't match the spirit of that allowance, even without a published number to point to.

Economy Class passengers get one free checked bag up to 23 kg (50 lb) as the baseline allowance. Checked allowances above that baseline vary by fare type within Economy and by cabin, and Cathay Pacific membership tier can add to what's included, which is why the airline runs a dedicated baggage calculator tool rather than publishing one flat number for every ticket.

If your itinerary involves a codeshare or an interline connection with another airline, your checked baggage allowance can also be governed by whichever carrier's rules apply to that specific segment, not necessarily Cathay Pacific's own rule. Check the baggage allowance shown on your actual ticket or through the calculator rather than assuming the Economy baseline covers every leg of a multi-airline itinerary.

This matters more on Cathay Pacific than on a domestic-only carrier because so much of its network is built around long-haul connections through Hong Kong, where a single itinerary can combine a Cathay Pacific-operated segment with a partner airline's segment under one ticket number. The baggage rule that actually applies can change mid-itinerary even though the booking looks like a single trip.

Cathay Pacific doesn't publish a flat excess baggage rate. Extra or overweight checked baggage is priced by route and is best confirmed through the airline's own baggage calculator or Manage Booking tool at the time you book or check in, since long-haul international pricing structures like this one commonly vary by origin, destination, and fare class rather than using one fixed global rate.

If you expect to be over your allowance, pricing the extra weight in advance through Cathay Pacific's own tools, rather than assuming a number from a third-party guide, is the only way to know what you'll actually be charged for your specific route.

Economy Class passengers traveling with an infant get a complimentary collapsible pram or stroller and an infant car safety seat per infant, on top of the standard checked baggage allowance, per Cathay Pacific's own baggage FAQ. These items travel free and separate from your 23 kg checked bag, so they shouldn't be weighed against or counted toward your own allowance when you're checking in for the flight.

A 7 kg Economy cabin bag limit isn't unique to Cathay Pacific. It's the same figure Qatar Airways and several other long-haul international carriers use for their Economy cabin bag, which suggests it's less a Cathay-specific policy choice and more an unofficial norm among airlines flying widebody aircraft on long routes, where cabin space and weight-and-balance considerations are more tightly managed than on shorter domestic hops.

That consistency is worth knowing if you fly a mix of carriers, since a cabin bag packed to Cathay Pacific's 7 kg Economy limit will very likely also clear a similar 7 kg limit on another Asia-Pacific or Middle Eastern long-haul carrier, even though the exact size box each airline specifies can still differ by a centimeter or two.