Plus Ultra Lineas Aereas offers a web check-in service that can be accessed through their comprehensive website for all flights. Passengers enjoy the convenience of choosing seats online long before departing from the comfort of home or workspace. This web check-in option remains available a full day ahead of scheduled takeoff. Travelers are prompted to manually enter ticket details to begin the self-service process. After following on-screen prompts, passengers can select seats then finalize check-in from afar. The auto-printed boarding passes should be brought alongside identification to the airport no sooner than two hours in advance of the published departure time. Those seeking a stress-free journey can rely on this digital solution for registration.