Passengers, if you are looking for the best option for multi city travel at one ticket. You can checkout American Airlines. AA allows passengers to create multi-city flights on one ticket and customized itineraries with multiple destinations. With easy booking options through their website or app, if you are unaware of the American Airlines multi-city flight booking process, read this blog at the mentioned link by Airlines Pet Policy to assist you, and can also contact a customer service professional over the helpline.