Airline tickets are documents or electronic records that confirm a passenger's reservation for a flight. They include important details such as the traveler's name, flight number, departure and arrival times, and the airline's name. Tickets can be purchased directly from airlines or through travel agencies, and they often come in different classes, such as economy, business, and first class. When buying an airline ticket, travelers should be aware of various factors, including the ticket price, baggage allowances, and cancellation policies. Prices can vary based on demand, time of booking, and travel dates. Additionally, some tickets are non-refundable, while others may allow changes for a fee.