Baggage policy, Carry-on luggage – copa.com

Baggage

Each piece can measure up to 62 combined linear inches (157 cm) (height + length + width).
Pieces with a combined linear measurement between 63 inches (159 cm) and 107 inches (272 cm) are considered excess baggage.
Pieces whose combined linear measurements exceed 107 inches (272 cm) will not be accepted as baggage and must be transported as cargo.
If your suitcase has wheels, the wheels are not included in the linear measurement of the suitcase.

Effective since April 1, 2011: if the geographically longest or most significant stretch of your journey is not operated by Copa Airlines, but by another airline, this airline’s rules may also apply to Copa Airlines flights or Copa Airlines flight numbers.
If Copa Airlines operates the geographically longest or most significant stretch of the journey, then the Copa Airlines rules and charges apply.
The applicable free baggage allowance is shown on your ticket.
The MSC rule does not apply to journeys to/from the USA.

On international flights, Copa Airlines does not allow bags to be checked in more than four hours in advance of the scheduled flight departure time.
On domestics flights within Colombia, Copa Airlines does not allow bags to be checked in more than six hours in advance of the flight departure time.
If your flight includes an overnight layover, you must retrieve your bags from customs and check them in again at the connection location.

With the purchase of a ticket you may, at no additional cost, transport all baggage that complies with the following general conditions:

Contains items such as clothes and personal effects needed for the passenger's comfort and convenience during his/her trip.

Identify your luggage outside as well as inside with your complete name, address and phone number for it to not be confused with someone else’s.