Yes, you must formally check-in for all Copa Airlines flights, and the process is essential for securing your seat and verifying travel documents. For international travel through their "Hub of the Americas" in Panama, check-in opens 24 hours before departure and is highly recommended via their mobile app or website. If you do not check-in online, you must do so at the airport counter at least 60 to 90 minutes before your flight, depending on the departure city. In 2026, Copa has streamlined the "Web Check-In" process to include digital document verification for visas and health requirements, which can save significant time at the airport. If you are traveling with checked luggage, you must still visit a "Bag Drop" counter even after checking in online. Failing to check-in by the airline's deadline (usually 60 minutes for international) can result in your seat being released to standby passengers, so it is vital to complete this step as early as possible to ensure a smooth boarding process.