 Online trip planners like Sygic, Roadtrippers and Triphobo.com help cater to different traveller profiles by providing easier access to information and a tool to organise a travel itinerary more efficiently.In international travel, persons visiting certain countries may be required to provide their travel itinerary to authorities to ensure that their plans are lawful.4.^One Day Itinerary Biggest collection of travel itineraries from around the world