How far in advance can you book flights?
Most airlines allow booking up to 11 months in advance, but this varies. U.S. carriers like American and Delta allow 331 days, while international ones like Lufthansa allow 360 days. Optimal booking times differ: domestic flights are best booked 3-6 months ahead, while international flights vary by region. Factors like seasonality and route popularity affect booking windows. Use tools like Kayak for alerts, and consider travel insurance for early bookings. Award travel should be booked early, especially for premium seats. Check fare rules, travel restrictions, and credit card benefits.