Cosmos and flight-only sister company, Avro, have launched ticketless travel for customers.osmos and flight-only sister company, Avro, have launched ticketless travel for customers. Initially this involves both charter and scheduled flights with sister airline, Monarch, which carries the majority of its customers, but will be rolled out to include other airlines. Agents will receive a single page ?Travel Itinerary? confirming all flight and travel arrangements, replacing the traditional tickets and travel documentation.