Abstract: The present invention generates a concise listing of low-priced travel products in an interactive itinerary format in response to a simplified user input that can include specification of a selected travel theme. The interactive itinerary can allow and/or recommend changes to the itinerary, e.g., to add, remove, or otherwise change the various travel products included therein, and the user can be notified of the cost and/or scheduling effects of particular modifications to the itinerary. Various tools can also be provided for evaluating the itinerary, e.g., to enable the user to understand the relationship and compatibility of the travel products in time and location so that the user is better informed of the itinerary and more likely to complete the purchase of the associated travel products.